Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 112
Filtrar
1.
Fungal Syst Evol ; 13: 441-494, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-39135884

RESUMEN

Two new genera, 17 new species, two epitypes, and six interesting new host and / or geographical records are introduced in this study. New genera include: Cadophorella (based on Cadophorella faginea) and Neosatchmopsis (based on Neosatchmopsis ogrovei). New species include: Alternaria halotolerans (from hypersaline sea water, Qatar), Amylostereum stillwellii (from mycangia of Sirex areolatus, USA), Angiopsora anthurii (on leaves of Anthurium andraeanum, Brazil), Anthracocystis zeae-maydis (from pre-stored Zea mays, South Africa), Bisifusarium solicola (from soil, South Africa), Cadophorella faginea (from dead capsule of Fagus sylvatica, Germany), Devriesia mallochii (from house dust, Canada), Fusarium kirstenboschense (from soil, South Africa), Macroconia podocarpi (on ascomata of ascomycete on twigs of Podocarpus falcatus, South Africa), Neosatchmopsis ogrovei (on Eucalyptus leaf litter, Spain), Ophiocordyceps kuchinaraiensis (on Coleoptera larva, Thailand), Penicillium cederbergense (from soil, South Africa), Penicillium pascuigraminis (from pasture mulch, South Africa), Penicillium viridipigmentum (from soil, South Africa), Pleurotheciella acericola (on stem, bark of living tree of Acer sp., Germany), Protocreopsis physciae (on Physcia caesia, Netherlands), and Talaromyces podocarpi (from soil, South Africa). Citation: Visagie CM, Yilmaz N, Allison JD, Barreto RW, Boekhout T, Boers J, Delgado MA, Dewing C, Fitza KNE, Furtado ECA, Gaya E, Hill R, Hobden A, Hu DM, Hülsewig T, Khonsanit A, Kolecka A, Luangsa-ard JJ, Mthembu A, Pereira CM, Price J-L, Pringle A, Qikani N, Sandoval-Denis M, Schumacher RK, Slippers B, Tennakoon DS, Thanakitpipattana D, van Vuuren NI, Groenewald JZ, Crous PW (2024). New and Interesting Fungi. 7. Fungal Systematics and Evolution 13: 441-494. doi: 10.3114/fuse.2024.13.12.

2.
Tissue Cell ; 82: 102050, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36933273

RESUMEN

Extracellular matrix (ECM) proteins in the mammary gland provide structure and regulate its development and homeostasis. Alterations in its structure can regulate and support pathogenesis, like breast tumors. Aiming to identify the health and tumoral canine mammary ECM scaffold protein profile by immunohistochemistry, the decellularization process was carried out to remove the cellular content. Additionally, it was verified the influence of health and tumoral ECM on the attachment of health and tumoral cells. The types I, III, IV, and V structural collagens were scarce in the mammary tumor, and ECM fibers were disorganized. Vimentin and CD44 were more common in mammary tumor stroma, suggesting a role in cell migration that results in tumor progression. Elastin, fibronectin, laminin, vitronectin, and osteopontin were similarly detected under healthy and tumor conditions, providing the attachment of normal cells in healthy ECM, while tumoral cells were able to attach in tumoral ECM. The protein pattern demonstrates ECM alteration in canine mammary tumorigenesis, presenting new knowledge on mammary tumor ECM microenvironment.


Asunto(s)
Proteínas de la Matriz Extracelular , Neoplasias , Animales , Perros , Proteínas de la Matriz Extracelular/metabolismo , Matriz Extracelular/metabolismo , Laminina , Tejido Conectivo , Neoplasias/patología , Microambiente Tumoral
3.
Plant Dis ; 2022 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-35971261

RESUMEN

Hop - Humulus lupulus (Cannabaceae) - is an important and ancient, herbaceous, temperate, perennial crop. It is a vine which, although having other uses, is cultivated predominantly for the brewing industry (Laws 2013). Cultivation of hops in Brazil is relatively new and has increased in the last twenty years. There is only one published record of a fungal disease affecting hop in Brazil - powdery mildew (Fagherazzi et al 2021). In January 2021, leaf spots appeared on all eight hops plants ithe collection maintained in the Infectarium, a disease demonstration garden on the campus of the Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil (https://www.infectario.ufv.br/). Symptoms were small, sub-circular to irregular spots, up to 5 mm, with a whitish to grayish center, surrounded by a dark brown necrotic margin, followed by a narrow yellowish outer margin. Older lesions became larger, grayish-brown, coalesced leading to extensive necrosis and stem dieback. A sample was collected, dried in a plant press, and deposited in the Herbarium of UFV (Acc. No VIC 47534). A dematiaceous fungus was found sporulating in the center of the lesions, when examined with a dissecting microscope. Fungal structures were scraped with a scalpel, mounted in lactoglycerol and observed with a light microscope (Olympus BX51). A pure culture was obtained after conidia were transferred onto PDA plates with a sterile fine-pointed needle. A representative isolate was deposited in the culture collection of the UFV (COAD 3368). The fungus had the following morphology: conidiophores cylindrical, geniculate, proliferating sympodially, 53 to 380 µm × 3 to 6.5 µm, 3 to 15-septate, smooth, with thickened and dark conidial scars, brown; conidia acicular to filiform, 47 to 210 µm × 2.5 to 5 µm, 3 to 17-septate, thin­walled, smooth, with thickened and dark hila, hyaline. This combination is typical of Cercospora apii sensu lato, as described by Crous and Braun (2003). Genomic DNA was extracted from a 7-day-old culture of COAD 3368 and three loci were PCR amplified, namely: actin (ACT), with 512-F and 783-R primers; calmodulin (CAL), using the primers 228F and 2Rd; and histone H3 gene (HIS3), with the primers CYLH3F and CYLH3R. PCR products were sequenced by Macrogen (Seoul, South Korea) and the resulting sequences were deposited in GenBank (OM677624, OM677625 and OM677626, respectively). A multilocus Bayesian phylogenetic grouped COAD 3368 with Cercospora 'sp. Q' (Groenewald et al. 2013). This is a yet unresolved species complex within C. apii. Six 6­month­old healthy hop plants (cv. Cascade) were sprayed with a COAD 3368 conidial suspension (105 conidia/ mL) whereas another group of six plants was sprayed with sterile distilled water, serving as controls. Plants were placed in a dew chamber for 5 days and then transferred to a greenhouse bench, where they were observed daily. Thirty days after inoculation, symptoms similar to those observed in the field had developed on all inoculated plants, whereas control plants remained healthy. The fungus growing on inoculated hops produced typical Cercospora conidiophores and conidia. Upon reisolation, pure cultures with the same morphology of COAD 3368 were obtained. There are no previous records of Cercospora 'sp. Q' on hops worldwide. Fungi in Cercospora 'sp. Q' are known to have a broad host-range. A previous record of Cercospora 'sp. Q' leaf spots was published from its observation on Dioscorea cayennensis in the Infectarium (Torres et al. 2016). Damage to the hop plants was severe and it is possible that Cercospora leaf spot will become an emerging threat to commercial hop plantations in Brazil.

4.
Mycologia ; 114(5): 868-886, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35913839

RESUMEN

The genus Cerradoa (type species Cerradoa palmaea) was established in 1978 by Hennen and Ono and named after the Brazilian Cerrado biome. The holotype collected in Planaltina, Federal District, Brazil, belonged to the first rust fungus reported on palms (Arecaceae). For decades, the status of Cerradoa as a distinct genus has been regarded as doubtful, representing a synonym of Edythea (Uropyxidaceae) starting with the second edition of the Illustrated Genera of Rust Fungi in 1983. Our molecular phylogenetic analyses, as well as our morphological investigations, allowed us to reject this synonymy, leading to the reinstatement of Cerradoa within the Pucciniaceae. Cerradoa, together with morphologically similar genera such as the newly established Pseudocerradoa with two species (Ps. paullula and Ps. rhaphidophorae) infecting araceous hosts, the fern rust Desmella, and also P. engleriana, could not be assigned to any of the seven identified major lineages within the Pucciniaceae. Edythea, instead of being maintained as a member of the Uropyxidaceae, was herein placed in Pucciniaceae, shown phylogenetically in close relationship to Cumminsiella mirabilissima, both infecting the Berberidaceae. Additionally, our extensive phylogenetic analyses add guidance for future taxonomic revisions in the highly polyphyletic genus Puccinia and other established taxa within the family Pucciniaceae.


Asunto(s)
Filogenia , Brasil
5.
Pol J Vet Sci ; 25(2): 295-302, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35861971

RESUMEN

Donkeys are a public health concern in the Northeast region of Brazil, with thousands of stray animals. Orchiectomy is an important population control measure; however, the long postoperative period with daily treatment of open wounds in the scrotum makes it difficult to perform a large number of castrations in sheltering centers. We evaluate a novel surgical procedure for orchiectomy in donkeys using parascrotal access. Twelve donkeys were used, divided into two groups: I - submitted to orchiectomy through parascrotal surgical access (novel procedure), and II - submitted to orchiectomy through scrotal access (conventional). Postoperative evaluations consisted of a macroscopic evaluation of the surgical wound (bleeding and intensity of edema), hematological parameters, and peritoneal fluid, which occurred in both groups at the moments (M): M0 - before the surgical procedure. The others moments occurred after surgery: M12 (twelve hours); M24 (twenty-four hours); M48 (forty-eight hours); M72 (seventy-two hours); M8D (eight days); and M16D (sixteen days). The surgical techniques did not generate an important systemic inflammatory response to the point detected by the leukogram, fibrinogen dosage, and peritoneal fluid. The parascrotal technique required long surgery but promoted less bleeding, less edema, and faster healing. The techniques used did not promote sufficient systemic inflammation to alter the number of leukocytes and the fibrinogen concentration; however, evaluation of the peritoneal fluid proved to be important for evaluating inflammatory processes involving the scrotum and inguinal canal. We describe a novel surgical procedure for orchiectomy in Donkeys using a parascrotal access that promoted less risk of bleeding, shorter period of edema, and healing time, but required longer surgery time.


Asunto(s)
Equidae , Orquiectomía , Animales , Equidae/cirugía , Fibrinógeno , Masculino , Orquiectomía/veterinaria , Escroto/cirugía
6.
Actas dermo-sifiliogr. (Ed. impr.) ; 112(6): 528-533, jun. 2021. graf, tab
Artículo en Español | IBECS | ID: ibc-213010

RESUMEN

Antecedentes Las infecciones por Chlamydia trachomatis siguen siendo un problema de salud mundial. Los objetivos de este estudio fueron determinar el número de infecciones por C.trachomatis por año, caracterizar los rasgos demográficos de la población infectada e identificar las infecciones de transmisión sexual (ITS) asociadas. Con dicha finalidad se recogieron los casos diagnosticados en los últimos 11años en el principal centro hospitalario de Lisboa. Materiales y métodos Se incluyeron todas las infecciones causadas por C.trachomatis y confirmadas por el laboratorio entre el 1 de enero de 2009 y el 31 de diciembre de 2019. Resultados Se recogieron un total de 6.404 muestras, de las cuales 602 fueron positivas para C.trachomatis y correspondían a un total de 550 pacientes. El 60% de los casos fueron diagnosticados por dermatólogos-venereólogos. La mayoría de los casos se observaron en pacientes de sexo masculino (n=371; 67,5%), con una mediana de edad de 26,1años (desviación estándar: 7,98) y con un rango de edad que oscilaba entre los 13 y los 68años. Más de la mitad de los casos (51,3%) se diagnosticaron en pacientes menores de 25años. En 87 pacientes (15,8%) se hallaron antecedentes de otra ITS. En 198 pacientes (36%) se diagnosticaron además otras ITS concomitantes, y 43 pacientes (7,8%) presentaron una ITS posteriormente. En cuanto al seguimiento, 196 pacientes (correspondientes al 35,6% del total de pacientes) no acudieron a una reevaluación tras el diagnóstico. Conclusión El número de casos confirmados de C.trachomatis ha demostrado un incremento con el transcurso de los años, afectando principalmente a pacientes menores de 25años. La infección por C.trachomatis se asociará especialmente a la infección por Neisseria gonorrhoeae; sin embargo, las infecciones concomitantes por otras ITS serán también muy prevalentes. Teniendo en cuenta las posibles complicaciones de la infección por C.trachomatis (AU)


Background Chlamydia trachomatis infections remain a burden worldwide. The goals of this study were to determine the number of C.trachomatis infections per year, characterize the demographic traits of the infected population and identify the associated sexually transmitted infections (STI), over the last 11years, in Lisbon main Hospital Centre. Materials and methods Laboratorial confirmed C.trachomatis infections diagnosed between January 1st, 2009 and December 31st, 2019 were evaluated. Results A total of 6404 samples were collected, with 602 being positive for C.trachomatis, corresponding to 550 patients. 60% of diagnoses were made by dermatovenereologists and most cases occurred in males (n=371; 67.5%), with a median age of 26.1years (standard deviation 7.98), ranging from 13 to 68years. More than half the cases (51.3%) occurred below the age of 25years. In 87 patients (15.8%) there was previous history of STI, in 198 patients (36%) a concomitant STI was present and 43 patients (7.8%) developed a posterior STI. Concerning follow-up, 196 patients (corresponding to 35.6% of total patients) did not show for a re-evaluation after the diagnosis was made. Conclusion Confirmed cases of C.trachomatis infection have risen along the years, affecting mainly people younger than 25 years. C.trachomatis infection is especially associated with Neisseriagonorrhoeae infection, but other STI are also very prevalent. Considering the potential complications of C.trachomatis infection, screening and treatment are necessary. The high percentage of diagnoses made by dermatovenereologists support the pivotal role of dermatovenereology in diagnosing C.trachomatis infections (AU)


Asunto(s)
Humanos , Masculino , Femenino , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Enfermedades de Transmisión Sexual/epidemiología , Infecciones por Chlamydia/epidemiología , Chlamydia trachomatis/aislamiento & purificación , Estudios Retrospectivos , Portugal/epidemiología , Prevalencia
7.
Plant Dis ; 2021 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-33819103

RESUMEN

Colocasia esculenta, taro (T), is a major staple food crop in the tropics, including Brazil. Rumohra adiantiformis, leatherhead fern (LF), is broadly cultivated for its ornamental fronds that are used as a component of flower arrangements. Soft root rot of T and LF, and accompanying rapid plant wilt and death, was observed in plantations in Espírito Santo (Brazil), at Venda Nova do Imigrante, in April 2014 (LF) and July 2015 (T). Great losses were observed. Firstly, a few individual scattered plants showed symptoms of disease in the plantations, then aggregates of plants and, after a few seasons, the majority of the plants in the field died before harvest, leading to the abandonment of the activity by farmers. A white mycelial matt was observed on the crown and roots ofying T and LF plants. Infected corms become necrotic and dark brown mycelial strands were observed internally in tissues. Diseased organs were carefully washed and surface sterilized in 10% sodium hypochlorite. Samples of tissue were removed from the boundary of necrotic tissues and placed on potato dextrose-agar (PDA) plates and incubated at 23±2 C in the dark. Homogeneous mycelial colonies were isolated from both T and LF and, upon observation of microscope mounts under an Olympus BX 53 light microscope, pear-shaped hyphal swellings at the septae (Castro et al. 2013) were observed. . A representative isolate from each host was deposited in the local culture collection as COAD 2911 (LF isolate) and COAD 2912 (T isolate). Additionally, DNA was extracted from each culture using the Wizard Genomic DNA Purification Kit (Promega) and the internal transcriptional spacer region was PCR amplified using the primers ITS5 and ITS1 (White et al. 1990). The amplicons were sequenced by MACROGEN (http://www.macrogen.com). Consensus sequences were deposited in GenBank: MW561595 (LF), MW561596 (T). Consensus regions were compared against other sequences available in Genbank. A BLASTn analysis resulted in LF and T sequences respectively 99% (526/531bp) and 98% (412/420 bp) identity with that of Dematophora bunodes (MN984619). Additionally, a phylogenetic analysis of a selected sequence alignment was performed on the CIPRES webportal (Miller et al., 2010) using MrBayes v.3.1.1 (Ronquist & Huelsenbeck, 2003). A phylogenetic tree was generated showing that the placement of LF and T isolates is in D. bunodes (Wittstein et al. 2020). Pathogenicity tests were performed for LF and T isolates against their original hosts. For inoculum, bags of twice-autoclaved parboiled rice were seeded separately with each isolate, which were allowed to colonize the rice for two weeks. Four healthy young LF and T plants were utilized. Two extra healthy plants grown in the same conditions, but not inoculated, served as controls. Thirty g of Dematophora-colonized rice was placed in direct contact with stems or roots of each LF or T plant. Plants were maintained in a dew chamber for 48 h after inoculation and then transferred to a greenhouse bench. All inoculated plants developed wilt and root rot and died after 15-20 days. Controls remained healthy. White mycelial colonies were formed over tissues of diseased LF and T and upon observation under the microscope, typical pear-shaped swellings were observed in slides prepared from newly obtained pure cultures from LF and T. Dematophora bunodes (formerly Rosellinia bunnodes) has a worldwide distribution and is well known as a polyphagous plant pathogen (Farr and Rossman, 2020) but has never been reported as a pathogen either of LF or T before in Brazil and worldwide. Its report on LF and T further expands an already large host-range and resolves the etiology of the disease on LF and T.

8.
Persoonia ; 47: 178-374, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37693795

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii from a grassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis on calcareous soil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica), Inocybe corsica on wet ground. France (French Guiana), Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan, Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia, Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.) from stems of an Euphorbia sp. Netherlands, Alfaria junci, Myrmecridium junci, Myrmecridium juncicola, Myrmecridium juncigenum, Ophioceras junci, Paradinemasporium junci (incl. Paradinemasporium gen. nov.), Phialoseptomonium junci, Sporidesmiella juncicola, Xenopyricularia junci and Zaanenomyces quadripartis (incl. Zaanenomyces gen. nov.), from dead culms of Juncus effusus, Cylindromonium everniae and Rhodoveronaea everniae from Evernia prunastri, Cyphellophora sambuci and Myrmecridium sambuci from Sambucus nigra, Kiflimonium junci, Sarocladium junci, Zaanenomyces moderatricis-academiae and Zaanenomyces versatilis from dead culms of Juncus inflexus, Microcera physciae from Physcia tenella, Myrmecridium dactylidis from dead culms of Dactylis glomerata, Neochalara spiraeae and Sporidesmium spiraeae from leaves of Spiraea japonica, Neofabraea salicina from Salix sp., Paradissoconium narthecii (incl. Paradissoconium gen. nov.) from dead leaves of Narthecium ossifragum, Polyscytalum vaccinii from Vaccinium myrtillus, Pseudosoloacrosporiella cryptomeriae (incl. Pseudosoloacrosporiella gen. nov.) from leaves of Cryptomeria japonica, Ramularia pararhabdospora from Plantago lanceolata, Sporidesmiella pini from needles of Pinus sylvestris and Xenoacrodontium juglandis (incl. Xenoacrodontium gen. nov. and Xenoacrodontiaceae fam. nov.) from Juglans regia. New Zealand, Cryptometrion metrosideri from twigs of Metrosideros sp., Coccomyces pycnophyllocladi from dead leaves of Phyllocladus alpinus, Hypoderma aliforme from fallen leaves Fuscopora solandri and Hypoderma subiculatum from dead leaves Phormium tenax. Norway, Neodevriesia kalakoutskii from permafrost and Variabilispora viridis from driftwood of Picea abies. Portugal, Entomortierella hereditatis from a biofilm covering a deteriorated limestone wall. Russia, Colpoma junipericola from needles of Juniperus sabina, Entoloma cinnamomeum on soil in grasslands, Entoloma verae on soil in grasslands, Hyphodermella pallidostraminea on a dry dead branch of Actinidia sp., Lepiota sayanensis on litter in a mixed forest, Papiliotrema horticola from Malus communis, Paramacroventuria ribis (incl. Paramacroventuria gen. nov.) from leaves of Ribes aureum and Paramyrothecium lathyri from leaves of Lathyrus tuberosus. South Africa, Harzia combreti from leaf litter of Combretum collinum ssp. sulvense, Penicillium xyleborini from Xyleborinus saxesenii, Phaeoisaria dalbergiae from bark of Dalbergia armata, Protocreopsis euphorbiae from leaf litter of Euphorbia ingens and Roigiella syzygii from twigs of Syzygium chordatum. Spain, Genea zamorana on sandy soil, Gymnopus nigrescens on Scleropodium touretii, Hesperomyces parexochomi on Parexochomus quadriplagiatus, Paraphoma variabilis from dung, Phaeococcomyces kinklidomatophilus from a blackened metal railing of an industrial warehouse and Tuber suaveolens in soil under Quercus faginea. Svalbard and Jan Mayen, Inocybe nivea associated with Salix polaris. Thailand, Biscogniauxia whalleyi on corticated wood. UK, Parasitella quercicola from Quercus robur. USA, Aspergillus arizonicus from indoor air in a hospital, Caeliomyces tampanus (incl. Caeliomyces gen. nov.) from office dust, Cippumomyces mortalis (incl. Cippumomyces gen. nov.) from a tombstone, Cylindrium desperesense from air in a store, Tetracoccosporium pseudoaerium from air sample in house, Toxicocladosporium glendoranum from air in a brick room, Toxicocladosporium losalamitosense from air in a classroom, Valsonectria portsmouthensis from air in men's locker room and Varicosporellopsis americana from sludge in a water reservoir. Vietnam, Entoloma kovalenkoi on rotten wood, Fusarium chuoi inside seed of Musa itinerans, Micropsalliota albofelina on soil in tropical evergreen mixed forests and Phytophthora docyniae from soil and roots of Docynia indica. Morphological and culture characteristics are supported by DNA barcodes. Citation: Crous PW, Osieck ER, Jurjevic Z, et al. 2021. Fungal Planet description sheets: 1284-1382. Persoonia 47: 178-374. https://doi.org/10.3767/persoonia.2021.47.06.

9.
Persoonia ; 47: 178-374, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38352974

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Antartica, Cladosporium austrolitorale from coastal sea sand. Australia, Austroboletus yourkae on soil, Crepidotus innuopurpureus on dead wood, Curvularia stenotaphri from roots and leaves of Stenotaphrum secundatum and Thecaphora stajsicii from capsules of Oxalis radicosa. Belgium, Paraxerochrysium coryli (incl. Paraxerochrysium gen. nov.) from Corylus avellana. Brazil, Calvatia nordestina on soil, Didymella tabebuiicola from leaf spots on Tabebuia aurea, Fusarium subflagellisporum from hypertrophied floral and vegetative branches of Mangifera indica and Microdochium maculosum from living leaves of Digitaria insularis. Canada, Cuphophyllus bondii from a grassland. Croatia, Mollisia inferiseptata from a rotten Laurus nobilis trunk. Cyprus, Amanita exilis on calcareous soil. Czech Republic, Cytospora hippophaicola from wood of symptomatic Vaccinium corymbosum. Denmark, Lasiosphaeria deviata on pieces of wood and herbaceous debris. Dominican Republic, Calocybella goethei among grass on a lawn. France (Corsica), Inocybe corsica on wet ground. France (French Guiana), Trechispora patawaensis on decayed branch of unknown angiosperm tree and Trechispora subregularis on decayed log of unknown angiosperm tree. Germany, Paramicrothecium sambuci (incl. Paramicrothecium gen. nov.) on dead stems of Sambucus nigra. India, Aureobasidium microtermitis from the gut of a Microtermes sp. termite, Laccaria diospyricola on soil and Phylloporia tamilnadensis on branches of Catunaregam spinosa. Iran, Pythium serotinoosporum from soil under Prunus dulcis. Italy, Pluteus brunneovenosus on twigs of broadleaved trees on the ground. Japan, Heterophoma rehmanniae on leaves of Rehmannia glutinosa f. hueichingensis. Kazakhstan, Murispora kazachstanica from healthy roots of Triticum aestivum. Namibia, Caespitomonium euphorbiae (incl. Caespitomonium gen. nov.) from stems of an Euphorbia sp. Netherlands, Alfaria junci, Myrmecridium junci, Myrmecridium juncicola, Myrmecridium juncigenum, Ophioceras junci, Paradinemasporium junci (incl. Paradinemasporium gen. nov.), Phialoseptomonium junci, Sporidesmiella juncicola, Xenopyricularia junci and Zaanenomyces quadripartis (incl. Zaanenomyces gen. nov.), from dead culms of Juncus effusus, Cylindromonium everniae and Rhodoveronaea everniae from Evernia prunastri, Cyphellophora sambuci and Myrmecridium sambuci from Sambucus nigra, Kiflimonium junci, Sarocladium junci, Zaanenomyces moderatricis-academiae and Zaanenomyces versatilis from dead culms of Juncus inflexus, Microcera physciae from Physcia tenella, Myrmecridium dactylidis from dead culms of Dactylis glomerata, Neochalara spiraeae and Sporidesmium spiraeae from leaves of Spiraea japonica, Neofabraea salicina from Salix sp., Paradissoconium narthecii (incl. Paradissoconium gen. nov.) from dead leaves of Narthecium ossifragum, Polyscytalum vaccinii from Vaccinium myrtillus, Pseudosoloacrosporiella cryptomeriae (incl. Pseudosoloacrosporiella gen. nov.) from leaves of Cryptomeria japonica, Ramularia pararhabdospora from Plantago lanceolata, Sporidesmiella pini from needles of Pinus sylvestris and Xenoacrodontium juglandis (incl. Xenoacrodontium gen. nov. and Xenoacrodontiaceae fam. nov.) from Juglans regia. New Zealand, Cryptometrion metrosideri from twigs of Metrosideros sp., Coccomyces pycnophyllocladi from dead leaves of Phyllocladus alpinus, Hypoderma aliforme from fallen leaves Fuscopora solandri and Hypoderma subiculatum from dead leaves Phormium tenax. Norway, Neodevriesia kalakoutskii from permafrost and Variabilispora viridis from driftwood of Picea abies. Portugal, Entomortierella hereditatis from a biofilm covering a deteriorated limestone wall. Russia, Colpoma junipericola from needles of Juniperus sabina, Entoloma cinnamomeum on soil in grasslands, Entoloma verae on soil in grasslands, Hyphodermella pallidostraminea on a dry dead branch of Actinidia sp., Lepiota sayanensis on litter in a mixed forest, Papiliotrema horticola from Malus communis, Paramacroventuria ribis (incl. Paramacroventuria gen. nov.) from leaves of Ribes aureum and Paramyrothecium lathyri from leaves of Lathyrus tuberosus. South Africa, Harzia combreti from leaf litter of Combretum collinum ssp. sulvense, Penicillium xyleborini from Xyleborinus saxesenii, Phaeoisaria dalbergiae from bark of Dalbergia armata, Protocreopsis euphorbiae from leaf litter of Euphorbia ingens and Roigiella syzygii from twigs of Syzygium chordatum. Spain, Genea zamorana on sandy soil, Gymnopus nigrescens on Scleropodium touretii, Hesperomyces parexochomi on Parexochomus quadriplagiatus, Paraphoma variabilis from dung, Phaeococcomyces kinklidomatophilus from a blackened metal railing of an industrial warehouse and Tuber suaveolens in soil under Quercus faginea. Svalbard and Jan Mayen, Inocybe nivea associated with Salix polaris. Thailand, Biscogniauxia whalleyi on corticated wood. UK, Parasitella quercicola from Quercus robur. USA, Aspergillus arizonicus from indoor air in a hospital, Caeliomyces tampanus (incl. Caeliomyces gen. nov.) from office dust, Cippumomyces mortalis (incl. Cippumomyces gen. nov.) from a tombstone, Cylindrium desperesense from air in a store, Tetracoccosporium pseudoaerium from air sample in house, Toxicocladosporium glendoranum from air in a brick room, Toxicocladosporium losalamitosense from air in a classroom, Valsonectria portsmouthensis from air in men's locker room and Varicosporellopsis americana from sludge in a water reservoir. Vietnam, Entoloma kovalenkoi on rotten wood, Fusarium chuoi inside seed of Musa itinerans, Micropsalliota albofelina on soil in tropical evergreen mixed forests and Phytophthora docyniae from soil and roots of Docynia indica. Morphological and culture characteristics are supported by DNA barcodes. Citation: Crous PW, Osieck ER, Jurjevic Z, et al. 2021. Fungal Planet description sheets: 1284-1382. Persoonia 47: 178-374. https://doi.org/10.3767/persoonia.2021.47.06.

10.
Fungal Syst Evol ; 6: 1-24, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32904189

RESUMEN

The Genera of Fungi series, of which this is the sixth contribution, links type species of fungal genera to their morphology and DNA sequence data. Five genera of microfungi are treated in this study, with new species introduced in Arthrographis, Melnikomyces, and Verruconis. The genus Thysanorea is emended and two new species and nine combinations are proposed. Kramasamuha sibika, the type species of the genus, is provided with DNA sequence data for first time and shown to be a member of Helminthosphaeriaceae (Sordariomycetes). Aureoconidiella is introduced as a new genus representing a new lineage in the Dothideomycetes.

11.
Curr Microbiol ; 77(10): 2642-2649, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32444909

RESUMEN

The repeated observation of dog dung covered by abundant white cottony mycelium in a private garden in the city of Rio de Janeiro, state of Rio de Janeiro (Brazil) prompted an investigation to clarify the identity of the fungus involved. Three different species of mucoralean fungi (together with some ascomycete asexual morphs) were present. Two were identified as belonging to Mycotypha sp. and Thamnostylum sp., and the third belonged to Mucor sp. This publication deals with the full taxonomic elucidation of the latter. Based on morphological, physiological, and molecular data (ITS and LSU rDNA regions), it was recognized that this Mucor differed from all other species. It produces strongly sympodially circinate branched sporangiophores (some with up to four septa) with numerous swellings resembling abortive sporangia. It also has cylindrical, obovoid, pyriform, or ovoid columellae and its sporangiospores are mostly ellipsoid, although some are subglobose and others are irregular. Based on the evidence of the analyzed datasets, the new species Mucor merdophylus is hereby proposed.


Asunto(s)
Mucor , Animales , Brasil , ADN Ribosómico/genética , Perros , Mucor/genética , Esporas Fúngicas
12.
Arq. bras. med. vet. zootec. (Online) ; 71(6): 1889-1895, Nov.-Dec. 2019. tab, graf
Artículo en Portugués | LILACS, VETINDEX | ID: biblio-1055129

RESUMEN

A utilização da gema de ovo dificulta a padronização de meios diluidores e apresenta riscos biológicos. Assim, este estudo avaliou diferentes concentrações da lipoproteína de baixa densidade (LDL), em substituição à gema de ovo, para a confecção de diluentes para criopreservação espermática em ovinos. Foram utilizados um diluidor controle (CTR= 20% de gema de ovo) e cinco tratamentos, substituindo-se a gema pelas diferentes proporções de LDL (T1=6%; T2=8%; T3=12%; T4=16%; T5=20%), todos à base de TRIS-glicerol. Para o estudo, utilizaram-se dois ejaculados, de seis reprodutores da raça Santa Inês. Sessenta dias após a criopreservação, as amostras foram descongeladas e avaliadas subjetivamente quanto à motilidade total (MT, %) e progressiva (MP, %), ao vigor (1-5) e à integridade funcional (choque hisposmótico com água destilada, %) e estrutural (corante supravital eosina, %) das membranas espermáticas. As avaliações de vigor e funcionalidade de membrana não diferiram (P>0,05) entre os grupos. Entretanto, os grupos T4 (P<0,01) e T5 (P<0,05) foram superiores ao CTR para os parâmetros MT, MP e integridade estrutural de membrana, o que confirma que as LDLs podem ser alternativas eficientes para substituição da gema de ovo em diluidores para criopreservação de sêmen ovino.(AU)


The use of egg yolk makes it difficult to standardize extenders and presents biological hazards. Thus, this study evaluated different concentrations of low-density lipoprotein (LDL) to replace yolk extenders for production of sperm for cryopreservation in ovine. A control extender was used (CTR= 20% yolk) and five treatments, replacing the yolk by different ratios of LDL (T1= 6%; T2= 8%, T3= 12%; T4= 16%; T5= 20%) all based on TRIS-glycerol. For the study, two ejaculates from six Santa Ines breeding were used. Sixty days after cryopreservation, the samples were thawed and evaluated for total motility (MT, %) and progressive motility (MP, %), vigor (1-5) and the functional integrity (hyposmotic shock with distilled water, %) and structural (supravital dye eosin, %) of the sperm membranes. The evaluations of strength and membrane functionality didn't differ (P> 0.05) between groups. However, T4 (P< 0.01) and T5 (P< 0.05) groups were superior to the CTR for the MT, MP, and membrane structural integrity parameters, which confirms that LDLs can be efficient alternatives for yolk replacement in extenders for cryopreservation of ovine semen.(AU)


Asunto(s)
Animales , Masculino , Preservación de Semen/métodos , Ovinos , Criopreservación/veterinaria , Lipoproteínas LDL/administración & dosificación
13.
Phys Rev E ; 100(2-1): 022118, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31574740

RESUMEN

We propose a model for a chain vibrating in three dimensions, with first neighbors anharmonic interatomic potential, which depends on their distance, and subjected to an external tension. In the framework of the nonlinear fluctuating hydrodynamic theory, which was successfully applied to one-dimensional chains, we obtain a heat mode, two longitudinal, and four transverse sound modes. We compute their spatiotemporal correlations comparing the theoretical results with molecular dynamics simulations, finding a good agreement for high temperatures. We find that the transverse sound modes behave diffusively, meanwhile the heat and longitudinal sound modes behave superdiffusively, exploring their possible scaling functions and characteristic exponents.

14.
Persoonia ; 43: 223-425, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-32214501

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Antarctica, Apenidiella antarctica from permafrost, Cladosporium fildesense from an unidentified marine sponge. Argentina, Geastrum wrightii on humus in mixed forest. Australia, Golovinomyces glandulariae on Glandularia aristigera, Neoanungitea eucalyptorum on leaves of Eucalyptus grandis, Teratosphaeria corymbiicola on leaves of Corymbia ficifolia, Xylaria eucalypti on leaves of Eucalyptus radiata. Brazil, Bovista psammophila on soil, Fusarium awaxy on rotten stalks of Zea mays, Geastrum lanuginosum on leaf litter covered soil, Hermetothecium mikaniae-micranthae (incl. Hermetothecium gen. nov.) on Mikania micrantha, Penicillium reconvexovelosoi in soil, Stagonosporopsis vannaccii from pod of Glycine max. British Virgin Isles, Lactifluus guanensis on soil. Canada, Sorocybe oblongispora on resin of Picea rubens. Chile, Colletotrichum roseum on leaves of Lapageria rosea. China, Setophoma caverna from carbonatite in Karst cave. Colombia, Lareunionomyces eucalypticola on leaves of Eucalyptus grandis. Costa Rica, Psathyrella pivae on wood. Cyprus, Clavulina iris on calcareous substrate. France, Chromosera ambigua and Clavulina iris var. occidentalis on soil. French West Indies, Helminthosphaeria hispidissima on dead wood. Guatemala, Talaromyces guatemalensis in soil. Malaysia, Neotracylla pini (incl. Tracyllales ord. nov. and Neotracylla gen. nov.) and Vermiculariopsiella pini on needles of Pinus tecunumanii. New Zealand, Neoconiothyrium viticola on stems of Vitis vinifera, Parafenestella pittospori on Pittosporum tenuifolium, Pilidium novae-zelandiae on Phoenix sp. Pakistan, Russula quercus-floribundae on forest floor. Portugal, Trichoderma aestuarinum from saline water. Russia, Pluteus liliputianus on fallen branch of deciduous tree, Pluteus spurius on decaying deciduous wood or soil. South Africa, Alloconiothyrium encephalarti, Phyllosticta encephalarticola and Neothyrostroma encephalarti (incl. Neothyrostroma gen. nov.) on leaves of Encephalartos sp., Chalara eucalypticola on leaf spots of Eucalyptus grandis × urophylla, Clypeosphaeria oleae on leaves of Olea capensis, Cylindrocladiella postalofficium on leaf litter of Sideroxylon inerme, Cylindromonium eugeniicola (incl. Cylindromonium gen. nov.) on leaf litter of Eugenia capensis, Cyphellophora goniomatis on leaves of Gonioma kamassi, Nothodactylaria nephrolepidis (incl. Nothodactylaria gen. nov. and Nothodactylariaceae fam. nov.) on leaves of Nephrolepis exaltata, Falcocladium eucalypti and Gyrothrix eucalypti on leaves of Eucalyptus sp., Gyrothrix oleae on leaves of Olea capensis subsp. macrocarpa, Harzia metrosideri on leaf litter of Metrosideros sp., Hippopotamyces phragmitis (incl. Hippopotamyces gen. nov.) on leaves of Phragmites australis, Lectera philenopterae on Philenoptera violacea, Leptosillia mayteni on leaves of Maytenus heterophylla, Lithohypha aloicola and Neoplatysporoides aloes on leaves of Aloe sp., Millesimomyces rhoicissi (incl. Millesimomyces gen. nov.) on leaves of Rhoicissus digitata, Neodevriesia strelitziicola on leaf litter of Strelitzia nicolai, Neokirramyces syzygii (incl. Neokirramyces gen. nov.) on leaf spots of Syzygium sp., Nothoramichloridium perseae (incl. Nothoramichloridium gen. nov. and Anungitiomycetaceae fam. nov.) on leaves of Persea americana, Paramycosphaerella watsoniae on leaf spots of Watsonia sp., Penicillium cuddlyae from dog food, Podocarpomyces knysnanus (incl. Podocarpomyces gen. nov.) on leaves of Podocarpus falcatus, Pseudocercospora heteropyxidicola on leaf spots of Heteropyxis natalensis, Pseudopenidiella podocarpi, Scolecobasidium podocarpi and Ceramothyrium podocarpicola on leaves of Podocarpus latifolius, Scolecobasidium blechni on leaves of Blechnum capense, Stomiopeltis syzygii on leaves of Syzygium chordatum, Strelitziomyces knysnanus (incl. Strelitziomyces gen. nov.) on leaves of Strelitzia alba, Talaromyces clemensii from rotting wood in goldmine, Verrucocladosporium visseri on Carpobrotus edulis. Spain, Boletopsis mediterraneensis on soil, Calycina cortegadensisi on a living twig of Castanea sativa, Emmonsiellopsis tuberculata in fluvial sediments, Mollisia cortegadensis on dead attached twig of Quercus robur, Psathyrella ovispora on soil, Pseudobeltrania lauri on leaf litter of Laurus azorica, Terfezia dunensis in soil, Tuber lucentum in soil, Venturia submersa on submerged plant debris. Thailand, Cordyceps jakajanicola on cicada nymph, Cordyceps kuiburiensis on spider, Distoseptispora caricis on leaves of Carex sp., Ophiocordyceps khonkaenensis on cicada nymph. USA, Cytosporella juncicola and Davidiellomyces juncicola on culms of Juncus effusus, Monochaetia massachusettsianum from air sample, Neohelicomyces melaleucae and Periconia neobrittanica on leaves of Melaleuca styphelioides × lanceolata, Pseudocamarosporium eucalypti on leaves of Eucalyptus sp., Pseudogymnoascus lindneri from sediment in a mine, Pseudogymnoascus turneri from sediment in a railroad tunnel, Pulchroboletus sclerotiorum on soil, Zygosporium pseudomasonii on leaf of Serenoa repens. Vietnam, Boletus candidissimus and Veloporphyrellus vulpinus on soil. Morphological and culture characteristics are supported by DNA barcodes.

15.
Theriogenology ; 108: 118-126, 2018 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-29207292

RESUMEN

In horses, pregnancy is characterized by high levels of maternal estrogens that are produced largely by the interstitial tissue inside the gonads of the offspring, associated with a physiological gonadal hyperplasia, that is uncommon in other species. However, a detailed structural-functional understanding of the early stages of gonadal development and hyperplasia has remained elusive in horse pregnancy because of the lack of substantial data. The goal of this study was to describe the genital organs' development in 19 early horse embryos and fetuses (days 20-140 of gestation) of both sexes by means of anatomy, histology, stereology, and immunohistochemistry, with a specific focus on gonadal hyperplasia and interstitial tissue development. Gonadal hyperplasia with similar amounts of interstitial cells was observed in both sexes, but only during the early stage of development (days 40-90). Surprisingly, a higher degree of hyperplasia, characterized by larger amounts of interstitial cell-rich areas, was seen in fetal ovaries from 90 days of gestation onwards. Another novel aspect was that parallel to the hyperplasia of the interstitial cells, a much more precocious and pronounced differentiation of germinal cells was seen in the ovary, characterized by an earlier peak and decrease of DAZL and OCT protein immune markers. In conclusion, a reduced degree of hyperplasia and interstitial tissue in the fetal testis after 90 days of gestation suggests the existence of a more efficient mechanism regarding the synthesis of estrogen precursors as a structural or physiological difference between both fetal sexes, which warrants further investigation.


Asunto(s)
Genitales Femeninos/embriología , Genitales Masculinos/embriología , Caballos/embriología , Animales , Femenino , Desarrollo Fetal/fisiología , Masculino , Embarazo
16.
Fungal Syst Evol ; 1: 169-216, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32490366

RESUMEN

This study introduces two new families, one new genus, 22 new species, 10 new combinations, four epitypes, and 16 interesting new host and / or geographical records. Cylindriaceae (based on Cylindrium elongatum) is introduced as new family, with three new combinations. Xyladictyochaetaceae (based on Xyladictyochaeta lusitanica) is introduced to accommodate Xyladictyochaeta. Pseudoanungitea gen. nov. (based on P. syzygii) is described on stems of Vaccinium myrtillus (Germany). New species include: Exophiala eucalypticola on Eucalyptus obliqua leaf litter, Phyllosticta hakeicola on leaves of Hakea sp., Setophaeosphaeria citricola on leaves of Citrus australasica, and Sirastachys cyperacearum on leaves of Cyperaceae (Australia); Polyscytalum chilense on leaves of Eucalyptus urophylla (Chile); Pseudoanungitea vaccinii on Vaccinium myrtillus (Germany); Teichospora quercus on branch tissue of Quercus sp. (France); Fusiconidium lycopodiellae on stems of Lycopodiella inundata, Monochaetia junipericola on twig of Juniperus communis, Myrmecridium sorbicola on branch tissues of Sorbus aucuparia, Parathyridaria philadelphi on twigs of Philadelphus coronarius, and Wettsteinina philadelphi on twigs of Philadelphus coronarius (Germany); Zygosporium pseudogibbum on leaves of Eucalyptus pellita (Malaysia); Pseudoanungitea variabilis on dead wood (Spain); Alfaria acaciae on leaves of Acacia propinqua, Dictyochaeta mimusopis on leaves of Mimusops caffra, and Pseudocercospora breonadiae on leaves of Breonadia microcephala (South Africa); Colletotrichum kniphofiae on leaves of Kniphofia uvaria, Subplenodomus iridicola on Iris sp., and Trochila viburnicola on twig cankers on Viburnum sp. (UK); Polyscytalum neofecundissimum on Quercus robur leaf litter, and Roussoella euonymi on fallen branches of Euonymus europaeus (Ukraine). New combinations include: Cylindrium algarvense on leaves of Eucalyptus sp. (Portugal), Cylindrium purgamentum on leaf litter (USA), Cylindrium syzygii on leaves of Syzygium sp. (Australia), Microdochium musae on leaves of Musa sp. (Malaysia), Polyscytalum eucalyptigenum on Eucalyptus grandis × pellita (Malaysia), P. eucalyptorum on leaves of Eucalyptus (Australia), P. grevilleae on leaves of Grevillea (Australia), P. nullicananum on leaves of Eucalyptus (Australia), Pseudoanungitea syzygii on Syzygium cordatum leaf litter (South Africa), and Setophaeosphaeria sidae on leaves of Sida sp. (Brazil). New records include: Sphaerellopsis paraphysata on leaves of Phragmites sp., Vermiculariopsiella dichapetali on leaves of Melaleuca sp. and Eucalyptus regnans, and Xyladictyochaeta lusitanica on leaf litter of Eucalyptus sp. (Australia); Camarosporidiella mackenziei on twigs of Caragana sp. (Finland); Cyclothyriella rubronotata on twigs of Ailanthus altissima, Rhinocladiella quercus on Sorbus aucuparia branches (Germany); Cytospora viticola on stems of Vitis vinifera (Hungary); Echinocatena arthrinioides on leaves of Acacia crassicarpa (Malaysia); Varicosporellopsis aquatilis from garden soil (Netherlands); Pestalotiopsis hollandica on needles of Cupressus sempervirens (Spain), Pseudocamarosporium africanum on twigs of Erica sp. (South Africa), Pseudocamarosporium brabeji on branch of Platanus sp. (Switzerland); Neocucurbitaria cava on leaves of Quercus ilex (UK); Chaetosphaeria myriocarpa on decaying wood of Carpinus betulus, Haplograhium delicatum on decaying Carpinus betulus wood (Ukraine). Epitypes are designated for: Elsinoë mimosae on leaves of Mimosa diplotricha (Brazil), Neohendersonia kickxii on Fagus sylvatica twig bark (Italy), Caliciopsis maxima on fronds of Niphidium crassifolium (Brazil), Dictyochaeta septata on leaves of Eucalyptus grandis × urophylla (Chile), and Microdochium musae on leaves of Musa sp. (Malaysia).

17.
Persoonia ; 41: 238-417, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30728607

RESUMEN

Novel species of fungi described in this study include those from various countries as follows: Angola, Gnomoniopsis angolensis and Pseudopithomyces angolensis on unknown host plants. Australia, Dothiora corymbiae on Corymbia citriodora, Neoeucasphaeria eucalypti (incl. Neoeucasphaeria gen. nov.) on Eucalyptus sp., Fumagopsis stellae on Eucalyptus sp., Fusculina eucalyptorum (incl. Fusculinaceae fam. nov.) on Eucalyptus socialis, Harknessia corymbiicola on Corymbia maculata, Neocelosporium eucalypti (incl. Neocelosporium gen. nov., Neocelosporiaceae fam. nov. and Neocelosporiales ord. nov.) on Eucalyptus cyanophylla, Neophaeomoniella corymbiae on Corymbia citriodora, Neophaeomoniella eucalyptigena on Eucalyptus pilularis, Pseudoplagiostoma corymbiicola on Corymbia citriodora, Teratosphaeria gracilis on Eucalyptus gracilis, Zasmidium corymbiae on Corymbia citriodora. Brazil, Calonectria hemileiae on pustules of Hemileia vastatrix formed on leaves of Coffea arabica, Calvatia caatinguensis on soil, Cercospora solani-betacei on Solanum betaceum, Clathrus natalensis on soil, Diaporthe poincianellae on Poincianella pyramidalis, Geastrum piquiriunense on soil, Geosmithia carolliae on wing of Carollia perspicillata, Henningsia resupinata on wood, Penicillium guaibinense from soil, Periconia caespitosa from leaf litter, Pseudocercospora styracina on Styrax sp., Simplicillium filiforme as endophyte from Citrullus lanatus, Thozetella pindobacuensis on leaf litter, Xenosonderhenia coussapoae on Coussapoa floccosa. Canary Islands (Spain), Orbilia amarilla on Euphorbia canariensis. Cape Verde Islands, Xylodon jacobaeus on Eucalyptus camaldulensis. Chile, Colletotrichum arboricola on Fuchsia magellanica. Costa Rica, Lasiosphaeria miniovina on tree branch. Ecuador, Ganoderma chocoense on tree trunk. France, Neofitzroyomyces nerii (incl. Neofitzroyomyces gen. nov.) on Nerium oleander. Ghana, Castanediella tereticornis on Eucalyptus tereticornis, Falcocladium africanum on Eucalyptus brassiana, Rachicladosporium corymbiae on Corymbia citriodora. Hungary, Entoloma silvae-frondosae in Carpinus betulus-Pinus sylvestris mixed forest. Iran, Pseudopyricularia persiana on Cyperus sp. Italy, Inocybe roseascens on soil in mixed forest. Laos, Ophiocordyceps houaynhangensis on Coleoptera larva. Malaysia, Monilochaetes melastomae on Melastoma sp. Mexico, Absidia terrestris from soil. Netherlands, Acaulium pannemaniae, Conioscypha boutwelliae, Fusicolla septimanifiniscientiae, Gibellulopsis simonii, Lasionectria hilhorstii, Lectera nordwiniana, Leptodiscella rintelii, Parasarocladium debruynii and Sarocladium dejongiae (incl. Sarocladiaceae fam. nov.) from soil. New Zealand, Gnomoniopsis rosae on Rosa sp. and Neodevriesia metrosideri on Metrosideros sp. Puerto Rico, Neodevriesia coccolobae on Coccoloba uvifera, Neodevriesia tabebuiae and Alfaria tabebuiae on Tabebuia chrysantha. Russia, Amanita paludosa on bogged soil in mixed deciduous forest, Entoloma tiliae in forest of Tilia × europaea, Kwoniella endophytica on Pyrus communis. South Africa, Coniella diospyri on Diospyros mespiliformis, Neomelanconiella combreti (incl. Neomelanconiellaceae fam. nov. and Neomelanconiella gen. nov.) on Combretum sp., Polyphialoseptoria natalensis on unidentified plant host, Pseudorobillarda bolusanthi on Bolusanthus speciosus, Thelonectria pelargonii on Pelargonium sp. Spain, Vermiculariopsiella lauracearum and Anungitopsis lauri on Laurus novocanariensis, Geosmithia xerotolerans from a darkened wall of a house, Pseudopenidiella gallaica on leaf litter. Thailand, Corynespora thailandica on wood, Lareunionomyces loeiensis on leaf litter, Neocochlearomyces chromolaenae (incl. Neocochlearomyces gen. nov.) on Chromolaena odorata, Neomyrmecridium septatum (incl. Neomyrmecridium gen. nov.), Pararamichloridium caricicola on Carex sp., Xenodactylaria thailandica (incl. Xenodactylariaceae fam. nov. and Xenodactylaria gen. nov.), Neomyrmecridium asiaticum and Cymostachys thailandica from unidentified vine. USA, Carolinigaster bonitoi (incl. Carolinigaster gen. nov.) from soil, Penicillium fortuitum from house dust, Phaeotheca shathenatiana (incl. Phaeothecaceae fam. nov.) from twig and cone litter, Pythium wohlseniorum from stream water, Superstratomyces tardicrescens from human eye, Talaromyces iowaense from office air. Vietnam, Fistulinella olivaceoalba on soil. Morphological and culture characteristics along with DNA barcodes are provided.

18.
Stud Mycol ; 87: 257-421, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29180830

RESUMEN

The Mycosphaerellaceae represent thousands of fungal species that are associated with diseases on a wide range of plant hosts. Understanding and stabilising the taxonomy of genera and species of Mycosphaerellaceae is therefore of the utmost importance given their impact on agriculture, horticulture and forestry. Based on previous molecular studies, several phylogenetic and morphologically distinct genera within the Mycosphaerellaceae have been delimited. In this study a multigene phylogenetic analysis (LSU, ITS and rpb2) was performed based on 415 isolates representing 297 taxa and incorporating ex-type strains where available. The main aim of this study was to resolve the phylogenetic relationships among the genera currently recognised within the family, and to clarify the position of the cercosporoid fungi among them. Based on these results many well-known genera are shown to be paraphyletic, with several synapomorphic characters that have evolved more than once within the family. As a consequence, several old generic names including Cercosporidium, Fulvia, Mycovellosiella, Phaeoramularia and Raghnildiana are resurrected, and 32 additional genera are described as new. Based on phylogenetic data 120 genera are now accepted within the family, but many currently accepted cercosporoid genera still remain unresolved pending fresh collections and DNA data. The present study provides a phylogenetic framework for future taxonomic work within the Mycosphaerellaceae.

19.
J Med Entomol ; 54(6): 1639-1642, 2017 11 07.
Artículo en Inglés | MEDLINE | ID: mdl-28981687

RESUMEN

The brown dog tick, Rhipicephalus sanguineus sensu lato (Latreille), is a cosmopolitan ectoparasite and vector of pathogens that kill humans and animals. Pyrethroids represent a class of synthetic acaricides that have been used intensely to try to control the brown dog tick and mitigate the risk of tick-borne disease transmission. However, acaricide resistance is an emerging problem in the management of the brown dog tick. Understanding the mechanism of resistance to acaricides, including pyrethroids, is important to adapt brown dog tick control strategies. The main objective of this study was to determine if target-site mutations associated with pyrethroid resistance in other pests could be associated with phenotypic resistance detected in a brown dog tick population from Florida. We amplified segment 6 of the domain III of the voltage-sensitive sodium channel protein, using cDNAs synthesized from pyrethroid-susceptible and pyrethroid-resistant tick strains. A single nucleotide point mutation (SNP) identified in a highly conserved region of domain III S6 in the resistant ticks resulted in an amino acid change from phenylalanine to leucine. This mutation is characteristic of resistance phenotypes in other tick species, and is the first report of this mutation in R. sanguineus. Molecular assays based on this knowledge could be developed to diagnose the risk for pyrethroid resistance, and to inform decisions on integrated brown dog tick management practices.


Asunto(s)
Insecticidas , Piretrinas , Rhipicephalus sanguineus/genética , Canales de Sodio Activados por Voltaje/genética , Secuencia de Aminoácidos , Animales , Secuencia de Bases , Resistencia a los Insecticidas/genética , Mutación , Fenotipo
20.
Arq. bras. med. vet. zootec. (Online) ; 69(4): 870-876, jul.-ago. 2017. graf
Artículo en Portugués | LILACS, VETINDEX | ID: biblio-876619

RESUMEN

O objetivo deste estudo foi avaliar o efeito da suplementação mineral injetável extra de cobre (Cu) e zinco (Zn) sobre a resposta imunológica de vacas Nelore no período pré-parto. Foram avaliadas 60 vacas prenhes, as quais foram divididas em dois tratamentos, por meio da distribuição aleatória em delineamento inteiramente ao acaso. Aos 75 dias antes do parto, as vacas do tratamento testemunha (T) receberam soro fisiológico como placebo e os animais suplementados (S) receberam mineral injetável via subcutânea (75mg de cobre e 250mg de zinco, em dose única). Foram realizadas três coletas de sangue, duas antes da data prevista para o parto (75 e 10 dias) e uma 30 dias após o parto. Os teores de Cu, Zn, ceruloplasmina, imunoglobulinas G (IgG) e M (IgM) foram analisados durante as três coletas. A atividade fagocitária foi avaliada aos 30 dias pós-parto. Os dados foram examinados mediante análise de variância, com o uso do pacote estatístico do SAS, e os dados individuais da atividade fagocitária pelo PROC GLM. Os dados de Cu, Zn, IgG e IgM foram analisados como medidas repetidas no tempo de coleta por meio do PROC MIXED, com o nível de significância de 5%. Os teores de Cu, Zn, IgM, IgG, ceruloplasmina e a atividade fagocitária das vacas não sofreram influência dos tratamentos (P>0,05). O fornecimento de Cu e Zn injetável, nas doses utilizadas, aos 75 dias antes do parto para vacas Nelore, em dietas suficientes, não alterou os teores de Cu, Zn, ceruloplasmina e a resposta imunológica até 30 dias após o parto.(AU)


The aim of this study was to evaluate the effect of extra injectable mineral supplementation of copper (Cu) and zinc (Zn) on the immune response of Nellore cows in pre-partum period. Sixty pregnant cows were randomly distributed in a completely randomized design in two treatments. In the control treatment (T), cows received saline as placebo, and supplemented treatment (S) received mineral injection (75mg copper and 250mg of zinc, single dose) subcutaneously, 75 days prior to parturition. Blood was sampled three times, two before the expected date of parturition (75 and 10 days) and another at 30 days postpartum. Analyses were performed for Cu, Zn, ceruloplasmin, immunoglobulin G (IgG) and M (IgM) in the three periods and the phagocytic activity in the last period (30 days postpartum). The experimental data were subjected to analysis of variance using the statistical package SAS, being that the individual data phagocytic activity were analyzed by PROC GLM, and the Cu, Zn, IgG and IgM were analyzed as repeated measures in the time, using the PROC MIXED, with the significance level of 5%. The Cu, Zn, IgM, IgG, ceruloplasmin and the phagocytic activity of the cows were not affected by treatments (P>0.05). The supply of injectable Cu and Zn, at the doses used, 75 days before parturition to Nellore cows in sufficient diets, did not alter the serum contents of Cu, Zn, ceruloplasmin and the immune response up to 30 days after parturition.(AU)


Asunto(s)
Animales , Femenino , Embarazo , Bovinos , Minerales en la Dieta , Suplementos Dietéticos/análisis , Inmunidad , Inmunoglobulinas , Cobre , Fagocitos , Zinc
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA