Prokaryotic communities of acidic peatlands from the southern Brazilian Atlantic Forest

• Autor(a) principal: Etto,R. M.
• Data de Publicação: 2012
• Outros Autores: Cruz,L. M., Jesus,E. C., Galvão,C. W., Galvão,F., Souza,E. M., Pedrosa,F. O., Steffens,M. B. R.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Microbiology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200031
• topic: acidic peatland; prokaryotic communities; SSU rRNA gene; microbial ecology

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.