Sulfur Species Investigation in Extra- and Intracellular Sulfur Globules of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus

	Sulfur Species Investigation in Extra- and Intracellular Sulfur Globules of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus
	He, HA; Xia, JL; Jiang, HC; Yan, Y; Liang, CL; Ma, CY; Zheng, L; Zhao, YD; Qiu, GZ; Ma CY(马陈燕)
刊名	GEOMICROBIOLOGY JOURNAL
	2010
卷号	27 期号:8 页码:707-713
关键词	Acidithiobacillus caldus Acidithiobacillus ferrooxidans sulfur globules sulfur species XANES
通讯作者	[He, Huan ; Xia, Jin-Lan ; Yan, Yi ; Liang, Chang-Li ; Qiu, Guan-Zhou] Cent S Univ, Key Lab Biomet, Minist Educ China, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China ; [He, Huan] China Univ Min & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Sch Chem Engn & Technol, Xuzhou, Peoples R China ; [Jiang, Hong-Chen] China Univ Geosci, Geomicrobiol Lab, State Key Lab Geol Proc & Mineral Resources, Beijing, Peoples R China ; [Ma, Chen-Yan ; Zheng, Lei ; Zhao, Yi-Dong] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing, Peoples R China
英文摘要	The sulfur chemical speciation in extracellular and intracellular sulfur globules of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus were investigated with an integrated approach including scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy and sulfur K-edge X-ray absorption near edge structure spectroscopy (XANES). The results indicated that both strains can accumulate extracellular sulfur globules when grown on thiosulfate, and the major sulfur chemical speciation of which were S8 for A. ferrooxidans and mixture of ring sulfur and polythionate for A. caldus, respectively. In contrast, A. ferrooxidans can accumulate both linear sulfur and S8 internally when grown with sulfur powder and thiosulfate, whereas A. caldus did not accumulate intracellular sulfur globules. In addition, the fitted results of sulfur K-edge XANES spectra indicated that the reduced glutathione (containing thiols groups) were involved in sulfur bio-oxidation of both strains and the tetrathionate were the intermediate products during thiosulfate metabolism by two strains.
学科主题	Environmental Sciences & Ecology; Geology
类目[WOS]	Environmental Sciences ; Geosciences, Multidisciplinary
研究领域[WOS]	Environmental Sciences & Ecology ; Geology
原文出处	SCI
语种	英语
WOS记录号	WOS:000282814300006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/238316]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	He, HA,Xia, JL,Jiang, HC,et al. Sulfur Species Investigation in Extra- and Intracellular Sulfur Globules of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus[J]. GEOMICROBIOLOGY JOURNAL,2010,27(8):707-713.
APA	He, HA.,Xia, JL.,Jiang, HC.,Yan, Y.,Liang, CL.,...&赵屹东.(2010).Sulfur Species Investigation in Extra- and Intracellular Sulfur Globules of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus.GEOMICROBIOLOGY JOURNAL,27(8),707-713.
MLA	He, HA,et al."Sulfur Species Investigation in Extra- and Intracellular Sulfur Globules of Acidithiobacillus ferrooxidans and Acidithiobacillus caldus".GEOMICROBIOLOGY JOURNAL 27.8(2010):707-713.