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Diversity and Abundance of Arsenic Biotransformation Genes in Paddy Soils from Southern China
Zhang, Si-Yu; Zhao, Fang-Jie; Sun, Guo-Xin; Su, Jian-Qiang; Yang, Xiao-Ru; Li, Hu; Zhu, Yong-Guan
2015-04-07
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
Volume49Issue:7Pages:4138-4146
AbstractMicrobe-mediated arsenic (As) biotransformation in paddy soils determines the fate of As in soils and its availability to rice plants, yet little is known about the microbial communities involved in As biotransformation. Here, we revealed wide distribution, high diversity, and abundance of arsenite (As(III)) oxidase genes (aioA), respiratory arsenate (As(V)) reductase genes (arrA), As(V) reductase genes (arsC), and As(III) S-adenosylmethionine methyltransferase genes (arsM) in 13 paddy soils collected across Southern China. Sequences grouped with As biotransformation genes are mainly from rice rhizosphere bacteria, such as some Proteobacteria, Gemmatimonadales, and Firmicutes. A significant correlation of gene abundance between arsC and arsM suggests that the two genes coexist well in the microbial As resistance system. Redundancy analysis (RDA) indicated that soil pH, EC, total C, N, As, and Fe, C/N ratio, SO42--S, NO3--N, and NH4+-N were the key factors driving diverse microbial community compositions. This study for the first time provides an overall picture of microbial communities involved in As biotransformation in paddy soils, and considering the wide distribution of paddy fields in the world, it also provides insights into the critical role of paddy fields in the As biogeochemical cycle.
Department土壤环境科学实验室
WOS Research AreaEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000352659000018
Citation statistics
Cited Times:74[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/32892
Collection土壤环境科学实验室
Recommended Citation
GB/T 7714
Zhang, Si-Yu,Zhao, Fang-Jie,Sun, Guo-Xin,et al. Diversity and Abundance of Arsenic Biotransformation Genes in Paddy Soils from Southern China[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2015,49(7):4138-4146.
APA Zhang, Si-Yu.,Zhao, Fang-Jie.,Sun, Guo-Xin.,Su, Jian-Qiang.,Yang, Xiao-Ru.,...&Zhu, Yong-Guan.(2015).Diversity and Abundance of Arsenic Biotransformation Genes in Paddy Soils from Southern China.ENVIRONMENTAL SCIENCE & TECHNOLOGY,49(7),4138-4146.
MLA Zhang, Si-Yu,et al."Diversity and Abundance of Arsenic Biotransformation Genes in Paddy Soils from Southern China".ENVIRONMENTAL SCIENCE & TECHNOLOGY 49.7(2015):4138-4146.
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