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Correlating microbial community profiles with geochemical conditions in a watershed heavily contaminated by an antimony tailing pond
EnzongXiao; Valdis Krumins; Song Tang; Tangfu Xiao; Zengping Ning; Xiaolong Lan; Weimin Sun
2016
Source PublicationEnvironmental Pollution
Volume215Issue:1Pages:141-153
Abstract

Mining activities have introduced various pollutants to surrounding aquatic and terrestrial environments, causing adverse impacts to the environment. Indigenous microbial communities are responsible for the biogeochemical cycling of pollutants in diverse environments, indicating the potential for bioremediation of such pollutants. Antimony (Sb) has been extensively mined in China and Sb contamination in mining areas has been frequently encountered. To date, however, the microbial composition and structure in response to Sb contamination has remained overlooked. Sb and As frequently co-occur in sulfide-rich ores, and co-contamination of Sb and As is observed in some mining areas. We characterized, for the first time, the microbial community profiles and their responses to Sb and As pollution from a watershed heavily contaminated by Sb tailing pond in Southwest China. The indigenous microbial communities were profiled by high-throughput sequencing from 16 sediment samples (535,390 valid reads). The comprehensive geochemical data (specifically, physical-chemical properties and different Sb and As extraction fractions) were obtained from river water and sediments at different depths as well. Canonical correspondence analysis (CCA) demonstrated that a suite of in situ geochemical and physical factors significantly structured the overall microbial community compositions. Further, we found significant correlations between individual phylotypes (bacterial genera) and the geochemical fractions of Sb and As by Spearman rank correlation. A number of taxonomic groups were positively correlated with the Sb and As extractable fractions and various Sb and As species in sediment, suggesting potential roles of these phylotypes in Sb biogeochemical cycling.

Subject Area环境地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6511
Collection环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
EnzongXiao,Valdis Krumins,Song Tang,et al. Correlating microbial community profiles with geochemical conditions in a watershed heavily contaminated by an antimony tailing pond[J]. Environmental Pollution,2016,215(1):141-153.
APA EnzongXiao.,Valdis Krumins.,Song Tang.,Tangfu Xiao.,Zengping Ning.,...&Weimin Sun.(2016).Correlating microbial community profiles with geochemical conditions in a watershed heavily contaminated by an antimony tailing pond.Environmental Pollution,215(1),141-153.
MLA EnzongXiao,et al."Correlating microbial community profiles with geochemical conditions in a watershed heavily contaminated by an antimony tailing pond".Environmental Pollution 215.1(2016):141-153.
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