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We present data on nematode infracommunity of the arboreal lizard Polycrhus acutirostris in the semiarid Caatinga biome, northeastern Brazil. Twenty- twolizard specimens collected in the municipality of Várzea Alegre in Ceará State and in the municipality of Exu in Pernambuco State were analyzed. Two species of nematodes were found, an Oxyuridae, Gynaecometra bahiensis, which had amean intensity of infection 23.5 ± 5.8 (prevalence 22%) and a Physalopteridae, Physaloptera retusa which had infection intensity of 21 (prevalence 9%). There were no significant differences between the parasitism rates of male or female lizards. Polychrus acutirostris demonstrated low richness of nematode parasites, but high levels of infection with G. bahiensis. Polychrus acutirostrisis reported here as a new host for P.retusa.(AU)

Apresentamos dados sobre a infracomunidades de nematóides parasitas de Polycrhus acutirostris, lagarto arborícola do bioma Caatinga região semi-árida do nordeste do Brasil. Foram analisados 22 espécimes de lagartos coletados em um ambiente de Caatinga no município de Várzea Alegre, Estado do Ceará e no município de Exu, Pernambuco. Duas espécies de nematóides foram encontradas, um Oxyuridae, Gynaecometra bahiensis, com intensidade média de infecção 23,5 ± 5,8 (prevalência de 22%) e um Physalopteridae, Physaloptera retusa, com intensidade de infecção 21 (prevalência de 9%). Não houve diferenças significativas entre as taxas de parasitismo de lagartos machos ou fêmeas. Polycrhus acutirostris demonstrou baixa riqueza de parasitos, mas altos níveis de infecção por G. bahiensis. Polychrus acutirostris é registrado aqui como um novo hospedeiro para P.retusa.(AU)

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Helminths and pentastomids were examined in exotic Hemidactylus mabouia and native Phyllopezus pollicaris lizards, living synanthropically in an urban area in the municipality of Crato, Ceará state, northeastern Brazil. A total of 194 lizards were collected, being 76 specimens of H. mabouia e 118 specimens of P. pollicaris. Six parasite species were found infecting H. mabouia: the cestode Oochoristica sp., the nematodes Parapharyngodon sceleratus, Physaloptera retusa, Physalopteroides venancioi, and Spauligodon oxkutzcabiensis and the pentastomid Raillietiella mottae; while four parasite species were found associated with P. pollicaris: Oochoristica sp., P. sceleratus, P. retusa, and S. oxkutzcabiensis. Three new host records were reported: P. retusa infecting H. mabouia and P. retusa and Oochoristica sp. infecting P. pollicaris. About 75% of the parasites species found were shared by both lizards. Moreover, H. mabouia showed greater diversity than P. pollicaris (6 versus 4 species), while P. pollicaris had higher intensity of infection than H. mabouia (1536 versus 121 specimens).(AU)

Helmintos e pentastomídeos foram analisados em lagartos exóticos Hemidactylus mabouia e nativos Phyllopezus pollicaris, vivendo sinantropicamente em uma área urbana da cidade de Crato, Estado do Ceará, Nordeste do Brasil. Foram coletados 194 lagartos, sendo 76 espécimes de H. mabouia e 118 de P. pollicaris. Seis espécies de parasitas foram encontradas infectando H. mabouia: Oochoristica sp., Parapharyngodon sceleratus, Physaloptera retusa, Physalopteroides venancioi, Spauligodon oxkutzcabiensis e Raillietiella mottae; enquanto em P. pollicaris foram encontradas quatro espécies: Oochoristica sp., P. sceleratus, P. retusa, and S. oxkutzcabiensis. Três novos registros de hospedeiros são reportados: P. retusa em H. mabouia e Oochoristica sp. e P. retusa infectando P. pollicaris. Cerca de 75% dos parasitas encontrados foram compartilhados pelas espécies de lagartos. Ainda, H. mabouia apresentou maior diversidade de parasitas do que P. pollicaris (6 espécies versus 4), enquanto P. pollicaris possui maior intensidade de infecção media do que H. mabouia (1.536 versus 121).(AU)

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CONTEXT: Ethnozoological studies have shown that Spilotes pullatus Linn. (Colubridae: Ophidia), is associated with medicinal and magic-religious uses in Brazil. OBJECTIVES: This study was designed to determine the chemical composition of the oil extracted from the body fat of S. pullatus and to test its antimicrobial properties, alone and in association with aminoglycosides, against fungi and bacterial strains in concentrations ranging between 1024 and 0.5 µg/mL. MATERIAL AND METHODS: The snakes were collected in the Chapada do Araripe, county of Crato, Ceará State, Brazil. The oil was extracted in a Soxhlet apparatus using hexane. The methyl esters of the fatty acids present in the samples were identified using GC-MS. The antimicrobial and drug modulatory activities of oil were tested by microdilution against fungal and bacterial strains. RESULTS: The chemical composition of the fixed oils of S. pullatus identified 10 constituents representing 94.97% of the total sample. The percentages of saturated and unsaturated fatty acids were 33.59 and 61.38%, respectively, with the most abundant components being elaidic (37.26%). The oil did not demonstrate any antimicrobial or antifungal activity when tested alone, presenting MIC values ≥ 1024 µg/mL. However, when associated with antibiotics, it demonstrated synergistic effects with gentamicin against all the bacterial lineages assayed, and antagonistic effects with amikacin and neomycin against strains of Escherichia coli. CONCLUSIONS: Oil extracted from the body fat of S. pullatus did not demonstrate any inhibitory effects on bacterial or fungal activities, but was effective in modulating the effects of certain antibiotics.

Asunto(s)

RESUMEN

We present data on nematode infracommunity of the arboreal lizard Polycrhus acutirostris in the semiarid Caatinga biome, northeastern Brazil. Twenty- twolizard specimens collected in the municipality of Várzea Alegre in Ceará State and in the municipality of Exu in Pernambuco State were analyzed. Two species of nematodes were found, an Oxyuridae, Gynaecometra bahiensis, which had a mean intensity of infection 23.5 ± 5.8 (prevalence 22%) and a Physalopteridae, Physaloptera retusa which had infection intensity of 21 (prevalence 9%). There were no significant differences between the parasitism rates of male or female lizards. Polychrus acutirostris demonstrated low richness of nematode parasites, but high levels of infection with G. bahiensis. Polychrus acutirostrisis reported here as a new host for P. retusa.

Asunto(s)

RESUMEN

Helminths and pentastomids were examined in exotic Hemidactylus mabouia and native Phyllopezus pollicaris lizards, living synanthropically in an urban area in the municipality of Crato, Ceará state, northeastern Brazil. A total of 194 lizards were collected, being 76 specimens of H. mabouia e 118 specimens of P. pollicaris. Six parasite species were found infecting H. mabouia: the cestode Oochoristica sp., the nematodes Parapharyngodon sceleratus, Physaloptera retusa, Physalopteroides venancioi, and Spauligodon oxkutzcabiensis and the pentastomid Raillietiella mottae; while four parasite species were found associated with P. pollicaris: Oochoristica sp., P. sceleratus, P. retusa, and S. oxkutzcabiensis. Three new host records were reported: P. retusa infecting H. mabouia and P. retusa and Oochoristica sp. infecting P. pollicaris. About 75% of the parasites species found were shared by both lizards. Moreover, H. mabouia showed greater diversity than P. pollicaris (6 versus 4 species), while P. pollicaris had higher intensity of infection than H. mabouia (1536 versus 121 specimens).

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