Pereira Letícia Bianca, Vicentini Renato, Ottoboni Laura M M
Centro de Biologia Molecular e Engenharia Genética, Universidade Estadual de Campinas, Campinas, SP, Brazil.
Genet Mol Biol. 2015 Dec;38(4):484-9. doi: 10.1590/S1415-475738420150025. Epub 2015 Nov 3.
The core microbiota of a neutral mine drainage and the surrounding high heavy metal content soil at a Brazilian copper mine were characterized by 16S rDNA pyrosequencing. The core microbiota of the drainage was dominated by the generalist genus Meiothermus. The soil samples contained a more heterogeneous bacterial community, with the presence of both generalist and specialist bacteria. Both environments supported mainly heterotrophic bacteria, including organisms resistant to heavy metals, although many of the bacterial groups identified remain poorly characterized. The results contribute to the understanding of bacterial communities in soils impacted by neutral mine drainage, for which information is scarce, and demonstrate that heavy metals can play an important role in shaping the microbial communities in mine environments.
通过16S rDNA焦磷酸测序对巴西一座铜矿的中性矿山排水及其周围重金属含量高的土壤的核心微生物群进行了表征。排水的核心微生物群以广适性的嗜热栖热菌属为主。土壤样品含有更具异质性的细菌群落，既有广适性细菌也有专性细菌。尽管许多已鉴定的细菌类群仍未得到充分表征，但这两种环境主要支持异养细菌，包括对重金属有抗性的生物。这些结果有助于了解受中性矿山排水影响的土壤中的细菌群落，目前关于这方面的信息很少，并表明重金属在塑造矿山环境中的微生物群落方面可以发挥重要作用。
