INIBIOMA   20415
INSTITUTO DE INVESTIGACIONES EN BIODIVERSIDAD Y MEDIOAMBIENTE
Unidad Ejecutora - UE
artículos
Título:
Yeasts occurring in surface and mouth cavity of two chelonian species, Podocnemis expansa Schweigger and P. unifilis Troschel (Reptilia: Chelonia: Pelomedusidae), in the Javaés River border of Araguaia National Park in Brazil
Autor/es:
DE MORAIS P.; PIMENTA P.; TAVARES I.; DE GARCIA V.; ROSA C.
Revista:
International Journal of Microbiology
Editorial:
Hindawi
Referencias:
Año: 2010 p. 1 - 5
ISSN:
1687-9198
Resumen:
Thirty-eight specimens of free-ranging Podocnemis expansa (Amazon turtle) and 22 of P. unifilis (Tracaj´a) were screened for yeastisolation from surface (plastron, skin, and nails), eye, and mouth cavity. A hundred and eighteen yeast isolates belonging to 39species were obtained. Debaryomyces hansenii, Candida galli, C. sake, and Rhodotorula mucilaginosa were the most frequent speciesisolated from these chelonians. Species diversity measured by Shannon’s index was shown to be low and a degree of dominancecould be detected as species known as potential pathogens were commonly isolated. The effective number of species in plastronof P. expansa was higher than in mouth samples, but not in P. unifilis probably due to dietary factors. P. expansa animals werecaptured on the beaches, and the superficial yeast populations may include terrestrial species. P. unifilis animals were captured inthe water and the yeasts from superficial sites may represent species from river water.