TY - JOUR A2 - Hiraishi, Akira AU - Catão, Elisa C. P. AU - Lopes, Fabyano A. C. AU - Araújo, Janaína F. AU - de Castro, Alinne P. AU - Barreto, Cristine C. AU - Bustamante, Mercedes M. C. AU - Quirino, Betania F. AU - Krüger, Ricardo H. PY - 2014 DA - 2014/09/15 TI - Soil Acidobacterial 16S rRNA Gene Sequences Reveal Subgroup Level Differences between Savanna-Like Cerrado and Atlantic Forest Brazilian Biomes SP - 156341 VL - 2014 AB - 16S rRNA sequences from the phylum Acidobacteria have been commonly reported from soil microbial communities, including those from the Brazilian Savanna (Cerrado) and the Atlantic Forest biomes, two biomes that present contrasting characteristics of soil and vegetation. Using 16S rRNA sequences, the present work aimed to study acidobacterial diversity and distribution in soils of Cerrado savanna and two Atlantic forest sites. PCA and phylogenetic reconstruction showed that the acidobacterial communities found in “Mata de galeria” forest soil samples from the Cerrado biome have a tendency to separate from the other Cerrado vegetation microbial communities in the direction of those found in the Atlantic Forest, which is correlated with a high abundance of Acidobacteria subgroup 2 (GP2). Environmental conditions seem to promote a negative correlation between GP2 and subgroup 1 (GP1) abundance. Also GP2 is negatively correlated to pH, but positively correlated to high Al³⁺浓度。与大西洋森林土壤相比，Cerrado土壤显示出物种和亚组水平的最低抗酸性丰富性和多样性指数。这些结果表明抗生素亚组对不同生物群体的土壤的特异性，并且是了解其生态角色的起点，这是一个需要进一步探索的主题。SN - 1687-918X UR - https://doi.org/10.1155/2014/156341 do - 10.1155/2014 / 156341 jf - 国际微生物学杂志Pb - Hindawi Publishing CorporationKW - ER -