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https://repositorio.ufba.br/handle/ri/16562
metadata.dc.type: | Artigo de Periódico |
Título : | Water quality and diversity of yeasts from tropical lakes and rivers from the Rio Doce basin in Southeastern Brazil |
Otros títulos : | Brazilian Journal of Microbiology |
Autor : | Medeiros, Adriana Oliveira Missagia, Beatriz de Souza Brandão, Luciana Rocha Callisto, Marcos Barbosa, Francisco Antonio Rodrigues Rosa, Carlos Augusto |
metadata.dc.creator: | Medeiros, Adriana Oliveira Missagia, Beatriz de Souza Brandão, Luciana Rocha Callisto, Marcos Barbosa, Francisco Antonio Rodrigues Rosa, Carlos Augusto |
Resumen : | Yeast communities were assessed in 14 rivers and four lakes from the Doce River basin in Brazil, during the rainy and dry seasons of the years 2000 and 2001. Water samples were collected at the subsurface in all sites. The following physical and chemical parameters were measured: temperature, dissolved oxygen, pH, electrical conductivity, total phosphorus, ortho-phosphate, ammonium, nitrate, nitrite and total nitrogen and the counts of faecal coliforms and heterotrophic bacteria were carried out to characterize the aquatic environmental sampled. The yeast counts were higher in aquatic environments with the highest counts of coliform and heterotrophic bacteria. These environments receive a high influx of domestic and industrial waste. A total of 317 isolates identified in forty eight yeast species were recorded in the sites sampled and the specie Aureobasidium pullulans were found in eleven out of eighteen sites sampled and some opportunistic pathogens such as the yeast species Candida krusei were isolated only in the polluted rivers with a positive correlation with the biotic and abiotic parameters that indicate sewage contamination. |
Palabras clave : | Tropical freshwater Yeast diversity |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI : | http://repositorio.ufba.br/ri/handle/ri/16562 |
Fecha de publicación : | 2012 |
Aparece en las colecciones: | Artigo Publicado em Periódico (Biologia) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Adriana O. Medeiros.pdf | 409,72 kB | Adobe PDF | Visualizar/Abrir |
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