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Prokaryotic communities of acidic peatlands from the southern Brazilian Atlantic Forest.


ABSTRACT: The acidic peatlands of southern Brazil are ecosystems essential for the maintenance of the Atlantic Forest, one of the 25 hot-spots of biodiversity in the world. In this work, we investigated the composition of prokaryotic communities in four histosols of three acidic peatland regions by constructing small-subunit (SSU) rRNA gene libraries and sequencing. SSU rRNA gene sequence analysis showed the prevalence of Acidobacteria (38.8%) and Proteobacteria (27.4%) of the Bacteria domain and Miscellaneous (58%) and Terrestrial (24%) groups of Crenarchaeota of the Archaea domain. As observed in other ecosystems, archaeal communities showed lower richness than bacterial communities. We also found a limited number of Euryarchaeota and of known methanotrophic bacteria in the clone libraries.

SUBMITTER: Etto RM 

PROVIDER: S-EPMC3768831 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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Prokaryotic communities of acidic peatlands from the southern Brazilian Atlantic Forest.

Etto R M RM   Cruz L M LM   Jesus E C EC   Galvão C W CW   Galvão F F   Souza E M EM   Pedrosa F O FO   Steffens M B R MB  

Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] 20120401 2


The acidic peatlands of southern Brazil are ecosystems essential for the maintenance of the Atlantic Forest, one of the 25 hot-spots of biodiversity in the world. In this work, we investigated the composition of prokaryotic communities in four histosols of three acidic peatland regions by constructing small-subunit (SSU) rRNA gene libraries and sequencing. SSU rRNA gene sequence analysis showed the prevalence of Acidobacteria (38.8%) and Proteobacteria (27.4%) of the Bacteria domain and Miscella  ...[more]

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