期刊
ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES, VOL 42
卷 42, 期 -, 页码 443-+出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-earth-060313-054942
关键词
arsenic; methylation; degradation; oxidation; reduction; MSMA; roxarsone; rice
资金
- Biotechnology and Biological Sciences Research Council [BB/F004087/1] Funding Source: Medline
- NIEHS NIH HHS [R01 ES023779] Funding Source: Medline
- NIGMS NIH HHS [R01 GM055425, R37 GM055425] Funding Source: Medline
- NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES [R01ES023779] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM055425, R37GM055425] Funding Source: NIH RePORTER
- BBSRC [BB/F004087/1] Funding Source: UKRI
Arsenic is the most prevalent environmental toxic element and causes health problems throughout the world. The toxicity, mobility, and fate of arsenic in the environment are largely determined by its speciation, and arsenic speciation changes are driven, at least to some extent, by biological processes. In this article, biotransformation of arsenic is reviewed from the perspective of the formation of Earth and the evolution of life, and the connection between arsenic geochemistry and biology is described. The article provides a comprehensive overview of molecular mechanisms of arsenic redox and methylation cycles as well as other arsenic biotransformations. It also discusses the implications of arsenic biotransformation in environmental re-mediation and food safety, with particular emphasis on groundwater arsenic contamination and arsenic accumulation in rice.
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