Influence of salinity on bacterioplankton communities from the Brazilian rain forest to the coastal Atlantic Ocean.

ABSTRACT:

Background

Planktonic bacteria are recognized as important drivers of biogeochemical processes in all aquatic ecosystems, however, the taxa that make up these communities are poorly known. The aim of this study was to investigate bacterial communities in aquatic ecosystems at Ilha Grande, Rio de Janeiro, Brazil, a preserved insular environment of the Atlantic rain forest and how they correlate with a salinity gradient going from terrestrial aquatic habitats to the coastal Atlantic Ocean.

Methodology/principal findings

We analyzed chemical and microbiological parameters of water samples and constructed 16S rRNA gene libraries of free living bacteria obtained at three marine (two coastal and one offshore) and three freshwater (water spring, river, and mangrove) environments. A

SUBMITTER: Silveira CB 

PROVIDER: S-EPMC3052384 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature