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Updated: Jun 4, 2026

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Published on: February 15, 2021
Enhancement of copper availability and microbial community changes in rice rhizospheres affected by sulfur
Ji-Yan Shi1, Hui-Rong Lin, Xiao-Feng Yuan
1Ministry of Agriculture Key Laboratory of Non-Point Source Pollution Control, Institute of Environmental Science and Technology, Zhejiang University, Hangzhou 310029, China. shijiyan@zju.edu.cn
Abstract:
The role of sulfur on the availability of Cu and the bacterial community in rice rhizospheres was investigated by pot experiments. With sulfur addition, pH in rhizosphere soil decreased and Mg(NO₃)₂ extractable Cu increased significantly. The bacterial community composition also changed with sulfur addition. Some specific clones having high similarity to Thiobacillus, which indicated that sulfur oxidation in the rice rhizosphere could increase the availability of Cu. These results suggested that sulfur source which could provide substrate to sulfur oxidizing bacteria and enhance the availability of Cu was not a suitable sulfur fertilizer for Cu polluted soil.
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