A review on completing arsenic biogeochemical cycle: Microbial volatilization of arsines in environment
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- 作者：Peipei Wang ; Guoxin Sun ; Yan Jia ; Andrew A Meharg ; Yongguan Zhu
- 关键词：Arsenic ; Methylation ; Microorganism ; volatilization
- 刊名：Journal of Environmental Sciences
- 出版年：1 February, 2014
- 年：2014
- 卷：26
- 期：2
- 页码：371-381
- 全文大小：489 K
文摘
Arsenic (As) is ubiquitous in the environment in the carcinogenic inorganic forms, posing risks to human health in many parts of the world. Many microorganisms have evolved a series of mechanisms to cope with inorganic arsenic in their growth media such as transforming As compounds into volatile derivatives. Bio-volatilization of As has been suggested to play an important role in global As biogeochemical cycling, and can also be explored as a potential method for arsenic bioremediation. This review aims to provide an overview of the quality and quantity of As volatilization by fungi, bacteria, microalga and protozoans. Arsenic bio-volatilization is influenced by both biotic and abiotic factors that can be manipulated/elucidated for the purpose of As bioremediation. Since As bio-volatilization is a resurgent topic for both biogeochemistry and environmental health, our review serves as a concept paper for future research directions.