Mucorales from the semiarid of Pernambuco, Brazil

Santiago, André Luiz Cabral Monteiro de Azevedo; Santos, Paulo Jorge Parreira dos; Maia, Leonor Costa

Santiago, André Luiz Cabral Monteiro de Azevedo; Santos, Paulo Jorge Parreira dos; Maia, Leonor Costa.

Afiliação

Santiago, André Luiz Cabral Monteiro de Azevedo; Universidade Federal Rural de Pernambuco. Unidade Acadêmica de Serra Talhada. Serra Talhada. BR
Santos, Paulo Jorge Parreira dos; Universidade Federal de Pernambuco. Centro de Ciências Biologicas. Departamento de Zoologia. Recife. BR
Maia, Leonor Costa; Universidade Federal de Pernambuco. Programa de Pós-graduação em Biologia de Fungos. Recife. BR

Braz. j. microbiol ; Braz. j. microbiol;44(1): 299-305, 2013. tab

Article em En | LILACS | ID: lil-676897

Biblioteca responsável: BR32.1

ABSTRACT

ABSTRACT

Nineteen taxa of Mucorales, belonging to Absidi, Apophysomyces, Cunninghamella, Fennellomyces, Lichtheimi, Mucor, Mycotypha, Rhizopus and Syncephalastrum were isolated from 36 composite soil samples in three semiarid areas in the State of Pernambuco (Triunfo, Cabrobó and Belém de São Francisco), Northeast Brazil, which are characterized by Caatinga vegetation. Triunfo is preserved, whereas Cabroró and Belém de São Francisco are experiencing low and severe desertification processes, respectively. Mucorales were isolated in Petri dishes in triplicate from 5 mg samples of soil placed on the surface of wheat germ agar plus chloramphenicol and Cercobin [Dimethyl 4,49-(103 phenylene) bis (3-thioallophanate)] medium. The plates were left on a bench at room temperature (28 ± 2 ºC) for 72 h of alternating dark and light periods. Absidia cylindrospora presented the highest amount of CFU/g of soil, followed by L. hyalospor, C. phaeospora and C. echinulata var. echinulata. The latter, and R. microsporus var. microsporus, presented the highest frequencies of occurrence. Soils from Triunfo showed higher diversity of Mucorales than the samples from the other areas, although without differing statistically in relation to species richness. The communities of Mucorales from the degraded areas were more similar, while that from the preserved area was quite different. Most of the identified specimens have been commonly isolated from soil in other Brazilian regions, which indicates that they are not endemic of the semiarid. Eleven taxa are registered for the first time in this ecosystem, while F. heterothallicus is reported for the first time in Brazil.

Assuntos

Zona Árida; Biodiversidade; Classificação; Ecossistema; Microbiologia Ambiental; Mucorales/isolamento & purificação; Biodegradação Ambiental; Fungos; Métodos; Solo

Palavras-chave

Biodiversity; Caatinga; Mucoromycotina; Soil degradation; Taxonomy

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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Zona Árida / Classificação / Ecossistema / Biodiversidade / Microbiologia Ambiental / Mucorales País/Região como assunto: America do sul / Brasil Idioma: En Revista: Braz. j. microbiol Assunto da revista: MICROBIOLOGIA Ano de publicação: 2013 Tipo de documento: Article / Project document País de afiliação: Brasil País de publicação: Brasil

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