Data/hora: 03/06/2024 13:12:50

Biblioteca(s): | Embrapa Agroenergia; Embrapa Suínos e Aves.
Data corrente: | 10/06/2016
Data da última atualização: | 08/11/2016
Autoria: | TUPINAMBÁ, D. D.; CANTAO, M. E.; COSTA, O. Y. A.; BERGMANN, J. C.; KRUGER, R. H.; KYAW, C. M.; BARRETO, C. C.; QUIRINO, B. F.
Afiliação: | DAIVA DOMENECH TUPINAMBÁ, UCB; MAURICIO EGIDIO CANTAO, CNPSA; OHANA YONARA ASSIS COSTA, UCB; JÉSSICA CARVALHO BERGMANN, UCB; RICARDO HENRIQUE KRUGER, UNB; CYNTHIA MARIA KYAW, UNB; CRISTINE CHAVES BARRETO, UCB; BETANIA FERRAZ QUIRINO, CNPAE.
Título: | Archaeal community changes associated with cultivation of amazon forest soil with oil palm.
Ano de publicação: | 2016
Fonte/Imprenta: | Archaea, Cairo, v. 2016, article ID 3762159, 14 p., 2016.
DOI: | http://dx.doi.org/10.1155/2016/3762159
Idioma: | Inglês
Conteúdo: | 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.
Palavras-Chave: | Archaeal; Área adjacente sob cultivo; Comunidades arcaicas; Comunidades microbianas; Floresta amazônica; Genômica; Mata nativa; Óleo de palma; Palma de óleo.
Categoria do assunto: | --
Registro original: | Embrapa Suínos e Aves (CNPSA)

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