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典型文献
Antimony transformation and mobilization from stibnite by an antimonite oxidizing bacterium Bosea sp.AS-1
文献摘要:
Soils and waters are heavily contaminated by antimony in Xikuangshan (XKS) mine area.It is widely accepted that oxidative dissolution of sulfide minerals and aqueous dissolution are the most prevalent geochemical mechanisms for the release of Sb to the environment.Bosea sp.AS-1 is an antimonite-oxidizer isolated from the mine slag in Xikuangshan Sb mine.Whole genome sequencing revealed the presence of multiple sulfur-oxidizing genes,antimony (Sb) metabolism genes and carbon fixation genes in AS-1's genome.We therefore hypothesized that under oxic conditions,AS-1 could mediate the oxidation of sulfide and Sb(Ⅲ) in stibnite (Sb2S3) and lead to the release of Sb.Indeed,strain AS-1 was discovered as an autotrophic Sb(Ⅲ)-oxidizen Antimony mobilization studies conducted with strain AS-1 showed significantly enhanced mobilization of Sb,and complete oxidation of released Sb and sulfur to Sb(Ⅴ) and sulfate.In addition,AS-1 induced a faster release of Sb under het-erotrophic condition,and new acicular minerals might form.These findings support the hypothesis that microorganisms play an important role in the mobilization and transfor-mation of Sb in XKS mine area and may contribute to our further understanding of the Sb biogeochemical redox cycle in natural environment.
文献关键词:
作者姓名:
Li Xiang;Chaoyang Liu;Deng Liu;Liyuan Ma;Xuan Qiu;Hongmei Wang;Xiaolu Lu
作者机构:
School of Environmental Studies,China University of Geosciences (Wuhan),Wuhan 430074,China;State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences (Wuhan),Wuhan 430074,China
引用格式:
[1]Li Xiang;Chaoyang Liu;Deng Liu;Liyuan Ma;Xuan Qiu;Hongmei Wang;Xiaolu Lu-.Antimony transformation and mobilization from stibnite by an antimonite oxidizing bacterium Bosea sp.AS-1)[J].环境科学学报(英文版),2022(01):273-281
A类:
antimonite,Bosea,Xikuangshan,oxidizen,erotrophic
B类:
Antimony,transformation,mobilization,from,stibnite,by,oxidizing,bacterium,sp,AS,Soils,waters,heavily,contaminated,antimony,XKS,area,It,widely,accepted,that,oxidative,dissolution,sulfide,minerals,aqueous,most,prevalent,mechanisms,environment,oxidizer,isolated,slag,Whole,genome,sequencing,revealed,presence,multiple,sulfur,genes,metabolism,carbon,fixation,We,therefore,hypothesized,oxic,conditions,could,mediate,oxidation,Sb2S3,lead,Indeed,strain,was,discovered,autotrophic,studies,conducted,showed,significantly,enhanced,complete,released,sulfate,addition,induced,faster,het,new,acicular,might,These,findings,support,hypothesis,microorganisms,play,important,role,may,contribute,our,further,understanding,biogeochemical,redox,cycle,natural
AB值:
0.49435
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