Etto RM, Cruz LM, Jesus EC, Galvão CW, Galvão F, Souza EM, Pedrosa FO, Steffens MBR. Prokaryotic communities of
acidic peatlands from the southern Brazilian Atlantic Forest.
Braz J Microbiol 2012;
43:661-74. [PMID:
24031878 PMCID:
PMC3768831 DOI:
10.1590/s1517-83822012000200031]
[Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 06/07/2012] [Indexed: 11/22/2022] Open
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.
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