Arsenic speciation transformation and arsenite influx and efflux across the cell membrane of fungi investigated using HPLC–HG–AFS and in-situ XANES
作者: Xibai ZengShiming SuQiufen FengXiurong WangYangzhu ZhangLili ZhangSheng JiangAiguo LiLianfang LiYanan WangCuixia WuLingyu BaiRan Duan
作者单位: 1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Environment, Ministry of Agriculture, Beijing, PR China
2College of Resource and Environment, Hunan Agricultural University, Changsha, Hunan Province, PR China
3Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, PR China
刊名: Chemosphere, 2015, Vol.119 , pp.1163-1168
来源数据库: Elsevier Journal
DOI: 10.1016/j.chemosphere.2014.10.034
关键词: ArseniteFungiSpeciation transformationDe-toxicityXANES
原始语种摘要: Abstract(#br)Microorganisms dominated speciation of arsenic (As) play an important role in the biogeochemical cycling of As. In the study, species transformation of arsenite [As(III)] and As(III) influx and efflux across the cell membranes of Trichoderma asperellum SM-12F1, Penicillium janthinellum SM-12F4, and Fusarium oxysporum CZ-8F1 cells were studied using a cellular lysis plus chromatographic separation method and further the in-situ X-ray absorption near edge structure (XANES) analysis. The results indicated that As(III) can enter into fungal cells and that a portion of the As(III) can be exuded out of cells. For both As sequestrated into fungal cytoplasm and As adsorbtion onto cell walls, As(III) was found to be the dominated form of As. XANES analysis showed that As(III)...
全文获取路径: Elsevier  (合作)
影响因子:3.137 (2012)

  • transformation 变换
  • HG Horizontal Gain
  • membrane 
  • arsenite 砷华
  • speciation 种别形成
  • efflux 
  • XANES X射线吸收近边结构
  • influx 
  • toxicity 毒性
  • fungi 真菌