Journal article

Dynamics of sulfate reduction and sulfate-reducing prokaryotes in anaerobic paddy soil amended with rice straw

Ji-Zheng He, Xin-Zhan Liu, Yong Zheng, Ju-Pei Shen, Li-Mei Zhang

Biology and Fertility of Soils | SPRINGER | Published : 2010

Abstract

Incorporation of rice straw to soil is a common agricultural practice in rice cultivation. In anaerobic paddy soil, the complete mineralization of organic matter to CH₄ and CO₂ is accomplished by the sequential reduction of nitrate, ferric iron, sulfate, and methanogenesis. In order to estimate the temporal changes of sulfate-reducing prokaryotes (SRP) as decomposers of organic matters, the effects of rice straw amendment on the dynamics of sulfate reduction and SRP were investigated by combining the monitoring of CH₄, sulfate, and organic acids with molecular tools such as soil DNA extraction, real-time PCR, cloning, sequencing, and phylogenetic analysis. The incorporation of rice straw int..

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University of Melbourne Researchers

Grants

Awarded by Chinese Academy of Sciences


Awarded by Ministry of Science and Technology


Awarded by Natural Science Foundation of China


Funding Acknowledgements

This work was supported by the Chinese Academy of Sciences (KZCX1-YW-0603, KZCX2-YW-408), the Ministry of Science and Technology (2005CB121105), and the Natural Science Foundation of China (40701087, 40871129).