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Title: Archaeal community changes associated with cultivation of Amazon Forest soil with oil palm
Authors: Tupinambá, Daiva Domenech
Cantão, Maurício Egídio
Costa, Ohana Yonara Assis
Bergmann, Jessica Carvalho
Kruger, Ricardo Henrique
Kyaw, Cynthia Maria
Barreto, Cristine Chaves
Quirino, Betânia Ferraz
Assunto:: Amazônia
Issue Date: 2016
Publisher: Hindawi Publishing Corporation
Citation: TUPINAMBÁ, Daiva Domenech et al. Archaeal community changes associated with cultivation of Amazon Forest soil with oil palm, Archaea, v. 2016, art. ID 3762159, p. 1-14, 2016. Disponível em: <>. Acesso em: 12 dez. 2016. doi:10.1155/2016/3762159
Abstract: This study compared soil archaeal communities of the Amazon forest with that of an adjacent area under oil palm cultivation by 16S ribosomal RNA gene pyrosequencing. Species richness and diversity were greater in native forest soil than in the oil palm-cultivated area, and 130 OTUs (13.7%) were shared between these areas. Among the classified sequences, Thaumarchaeota were predominant in the native forest, whereas Euryarchaeota were predominant in the oil palm-cultivated area. Archaeal species diversity was 1.7 times higher in the native forest soil, according to the Simpson diversity index, and the Chao1 index showed that richness was five times higher in the native forest soil. A phylogenetic tree of unclassified Thaumarchaeota sequences showed that most of the OTUs belong to Miscellaneous Crenarchaeotic Group. Several archaeal genera involved in nutrient cycling (e.g., methanogens and ammonia oxidizers) were identified in both areas, but significant differences were found in the relative abundances of Candidatus Nitrososphaera and unclassified Soil Crenarchaeotic Group (prevalent in the native forest) and Candidatus Nitrosotalea and unclassified Terrestrial Group (prevalent in the oil palm-cultivated area). More studies are needed to culture some of these Archaea in the laboratory so that their metabolism and physiology can be studied.
Licença:: Copyright © 2016 Daiva Domenech Tupinambá et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Fonte: Acesso em: 12 dez. 2016.
Appears in Collections:CEL - Artigos publicados em periódicos

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