Sulfate-reducing bacteria and methanogens are involved in arsenic methylation and demethylation in paddy soils

• Published in: The ISME Journal Vol. 13; no. 10; pp. 2523 - 2535
• Main Authors: Chen, Chuan, Li, Lingyan, Huang, Ke, Zhang, Jun, Xie, Wan-Ying, Lu, Yahai, Dong, Xiuzhu, Zhao, Fang-Jie
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.10.2019; Oxford University Press
• Subjects: 704/172/169/896; 704/47; 82/58; Archaea; Archaea - classification; Archaea - genetics; Archaea - isolation & purification; Archaea - metabolism; Arsenic; Arsenic - metabolism; Arsenite; Arsenites - metabolism; Bacteria; Bacteria - classification; Bacteria - genetics; Bacteria - isolation & purification; Bacteria - metabolism; Biogeochemical cycles; Biogeochemistry; Biomedical and Life Sciences; Demethylation; Disease control; Ecology; Evolutionary Biology; Floods; Life Sciences; Methane - metabolism; Methanogenic archaea; Methanogenic bacteria; Methylation; Microbial Ecology; Microbial Genetics and Genomics; Microbiology; Microorganisms; Oryza; Oryza - growth & development; Oryza - microbiology; Pore water; Redox potential; Rice; Rice fields; Soil - chemistry; Soil conditions; Soil dynamics; Soil Microbiology; Soil Pollutants - metabolism; Soils; Sulfate reduction; Sulfate-reducing bacteria; Sulfates; Sulfates - metabolism

Microbial arsenic (As) methylation and demethylation are important components of the As biogeochemical cycle. Arsenic methylation is enhanced under flooded conditions in paddy soils, producing mainly phytotoxic dimethylarsenate (DMAs) that can cause rice straighthead disease, a physiological disorde...