期刊论文

Xu, Zhenggang

英文

PEERJ

2167-8359

2020

8

2

e8589

10.7717/peerj.8589

The following grant information was disclosed by the authors: Major Science and Technology Program of Hunan Province: 2017NK1014. Forestry Science and Technology Project of Hunan Province: XLK201825, XKL201731. Key Technology R&D Program of Hunan Province: 2016TP2007, 2017TP2006. Key Technology R&D Program of Changsha: kq1901145. The study was supported by the Major Science and Technology Program of Hunan Province (2017NK1014); the Forestry Science and Technology Project of Hunan Province (XLK201825, XKL201731); the Key Technology R&D Program of Hunan Province (2016TP2007, 2017TP2006); and the Key Technology R&D Program of Changsha (kq1901145). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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Microorganisms play a significant part in detoxifying and immobilizing excessive metals. The present research isolated a strain (HM7) with high Mn(II) tolerance from Mn(II)-contaminated soil samples. The 16S rDNA sequence analysis showed that HM7 had a 99% similarity to Bacillus thuringiensis, which can survive under a high concentration 4,000 mg/L of Mn(II), and the highest removal rate was up to 95.04% at the concentration of 400 mg/L. The highest Mn(II) removal rate was detected at the contact time 72 h, temperature 30 ◦C, and pH 5.0, while...