Data/hora: 06/06/2024 18:14:57

Provedor de dados: | 97
País: | Chile
Título: | Bacterial diversity in the sediments of a temperate artificial lake, Rapel reservoir
Autores: | DORADOR,CRISTINA; CASTILLO,GABRIELA; WITZEL,K. P.; VILA,IRMA.
Data: | 2007-06-01
Ano: | 2007
Palavras-chave: | Sediments; Sulfate-reducing bacteria; 16S rDNA.
Resumo: | Rapel reservoir is an eutrophic system in Chile that has undergone a series of anthropogenic impacts in recent decades. To provide a better understanding of the processes occurring in the reservoir, we examined bacterial composition from surface sediments using traditional microbiology techniques and molecular biology tools. Our results showed significant temporal variation in the physical and chemical composition of the water column, but no depth-related differences during the study period. To detect temporal changes in bacterial composition, cultivable heterotrophic bacteria, heterotrophic iron oxidizing bacteria, and sulfate-reducing bacteria were extracted from the surface sediments and their concentration measured. Microbial diversity in sediments was represented by closest relatives of eight different bacterial phyla. The most frequently recovered phylotypes in the clone library of 16S rDNA were related to sulfate-reducing bacteria belong to the Deltaproteobacteria group
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000200007
Editor: | Sociedad de Biología de Chile
Formato: | text/html
Fonte: | Revista chilena de historia natural  v.80 n.2 2007