Distribution of arsenic and its biotransformation genes in sediments from the East China Sea
作者: Ting GuoLiguan LiWeiwei ZhaiBaile XuXiaole YinYan HeJianming XuTong ZhangXianjin Tang
作者单位: 1Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
2Department of Civil Engineering and Environmental Biotechnology Lab, The University of Hong Kong, Hong Kong Special Administrative Region
刊名: Environmental Pollution, 2019, Vol.253 , pp.949-958
来源数据库: Elsevier Journal
DOI: 10.1016/j.envpol.2019.07.091
关键词: Arsenic (As)Marine sedimentMetagenomic analysisArsenic biotransformation genesDiversity
英文摘要: Abstract(#br)Microbial transformation of arsenic (As) plays a key role in As biogeochemical cycling and affects the mobility, bioavailability, and toxicity of As. This study aims to investigate the accumulation of As in marine sediments at different water depths in the East China Sea and reveal the abundance and diversity of the aioA , arrA , arsC, and arsM genes through quantitative real-time polymerase chain reaction (qPCR) and high-throughput sequencing. Results showed that the As content in sediments ranged from 5.53 mg kg −1 to 17.70 mg kg −1 , which decreased with water depth. Abundant As biotransformation genes with low diversity were identified in these sediments, of which arsM and arrA were the most abundant. Significant positive correlation exists between the arsM and arrA gene...
全文获取路径: Elsevier  (合作)
影响因子:3.73 (2012)

  • arsenic 
  • China 中国