title: 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.
authors.affiliation: Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná , Curitiba, PR , Brasil.
authors.forename: R M
authors.initials: RM
authors.lastname: Etto
authors.forename: L M
authors.initials: LM
authors.lastname: Cruz
authors.forename: E C
authors.initials: EC
authors.lastname: Jesus
authors.forename: C W
authors.initials: CW
authors.lastname: Galvão
authors.forename: F
authors.initials: F
authors.lastname: Galvão
authors.forename: E M
authors.initials: EM
authors.lastname: Souza
authors.forename: F O
authors.initials: FO
authors.lastname: Pedrosa
authors.forename: M B R
authors.initials: MB
authors.lastname: Steffens
keywords: SSU rRNA gene; acidic peatland; microbial ecology; prokaryotic communities
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