From lithotroph- to organotroph-dominant: directional shift of microbial community in sulphidic tailings during phytostabilization.

ABSTRACT: Engineering microbial diversity to enhance soil functions may improve the success of direct revegetation in sulphidic mine tailings. Therefore, it is essential to explore how remediation and initial plant establishment can alter microbial communities, and, which edaphic factors control these changes under field conditions. A long-term revegetation trial was established at a Pb-Zn-Cu tailings impoundment in northwest Queensland. The control and amended and/or revegetated treatments were sampled from the 3-year-old trial. In total, 24 samples were examined using pyrosequencing of 16S rRNA genes and various chemical properties. The results showed that the microbial diversity was positively controlled by soil soluble Si and negatively controlled by soluble S, total Fe and total As, implying th

SUBMITTER: Li X 

PROVIDER: S-EPMC4534789 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature