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Published on: February 15, 2021
[Effects of sulfur on microbial activity and community structure in a lead-polluted paddy soil]
Hui-rong Lin1, Ji-yan Shi, Xiao-ping Fu
1Institute of Environmental Science and Technology, Zhejiang University, Hangzhou 310029, China. linhuirong@zju.edu.cn
Abstract:
A pot experiment was conducted to study the microbial activity and community structure in a lead-polluted paddy soil under effects of amendment with different concentration sodium thiosulfate. The amendment of the sulfur-containing substrate increased the soil oxidation-reduction potential and respiration rate, promoted the growth of soil sulfur-oxidizing bacteria, and induced some changes in soil microbial community structure. The clone sequencing indicated that the specific bands of soil microbes in sodium thiosulfate treatments had very high similarity to Bateroidetes, Thiobacillus, beta-proteobacteria, and Acidobacteria. Significant changes were observed in the contents of soil carbonate- and Fe/Mn oxide- bound Pb after the amendment of sodium thiosulfate.
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