Zhang, HK; Hu, XK
发表期刊CHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
2019-03-01
卷号359页码:755-764
关键词Sb(V) reductionSulfiteThiosulfateMarine bacteriumMolecular mechanism
研究领域Engineering, Environmental; Engineering, Chemical
DOI10.1016/j.cej.2018.11.168
产权排序[Hu, Xiaoke] Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264000, Peoples R China; Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
作者部门海岸带生物学与生物资源保护实验室
英文摘要Microbe-Sb interactions remain poorly understood and the molecular mechanism of microbe-mediated Sb(V) reduction remains unclear. In the present study, we investigated the process and mechanism of Sb(V) bioreduction by Shewanella sp. CNZ-1, which was isolated from the sediment of the Bohai Strait, in the absence or presence of sulfate/sulfite/thiosulfate. Results demonstrate that Sb(V) could be reduced to Sb(III) (including Sb2O3 and Sb(III)(aq) etc.) by CNZ-1 cells. Kinetic studies are carried out using the Langmuir-Freundlich dual model and Monod model and the results reveal that Sb removal by strain CNZ-1 is a fast bioadsorption (KLF, 1/n and a are 8.03, 0.0032 and 0.95, respectively; R-2= 0.98) and slow bioreduction (R-2= 0.95) process. Moreover, the supplementation of SO32- and S2O32- into the reaction system can lead to the formation of Sb2S3 along with the reduction of SO32- and S2O32-, while SO42- can't. The precipitates of Sb2S3 and Sb2O3 are further characterized and confirmed by SEM-EDX, XPS and XRD. In addition, global transcriptome assays reveal that genes encoding dehydrogenase, cytochrome, reductase, stress resistance protein, membrane proteins and transporters play key roles during the transformation of SO32-/S2O32- by CNZ-1 cells and subsequent RT-qPCR assays show that the genes S. CNZ. 1GM004058 and S. CNZ. 1GM001069 should account for the reduction of SO32- and S2O32- by the CNZ-1 strain, respectively.
文章类型Article
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51608519, 4157615]; National Natural Science foundation of Shandong Province, China [ZR2016EEB10]; Yantai Science and Technology Project [2017ZH094]; External Cooperation Program of Chinese Academy of SciencesChinese Academy of Sciences [133337KYSB20180015]; Key Research Project of Frontier Science of Chinese Academy of Sciences [QYZDB-SSW-DQC041]
收录类别SCI
语种英语
关键词[WOS]SHEWANELLA-ONEIDENSIS MR-1; ESCHERICHIA-COLI; NATURAL-WATERS; AZO-DYE; ANTIMONY; ENVIRONMENT; HYDROGEN; CR(VI); GENE; COPRECIPITATION
研究领域[WOS]Engineering, Environmental; Engineering, Chemical
WOS记录号WOS:000454137400071
引用统计被引频次：13[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24989
专题海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
作者单位1.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264000, Peoples R China;
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714Zhang, HK,Hu, XK. Bioadsorption and microbe-mediated reduction of Sb(V) by a marine bacterium in the presence of sulfite/thiosulfate and the mechanism study[J]. CHEMICAL ENGINEERING JOURNAL,2019,359:755-764.
APAZhang, HK,&Hu, XK.(2019).Bioadsorption and microbe-mediated reduction of Sb(V) by a marine bacterium in the presence of sulfite/thiosulfate and the mechanism study.CHEMICAL ENGINEERING JOURNAL,359,755-764.
MLAZhang, HK,et al."Bioadsorption and microbe-mediated reduction of Sb(V) by a marine bacterium in the presence of sulfite/thiosulfate and the mechanism study".CHEMICAL ENGINEERING JOURNAL 359(2019):755-764.
PDF全文下载地址:
点我下载PDF
