The Effect of Metal Ions on the Growth and Ferrous IronOxidation by Leptospirillum ferriphilum CC Isolated from Armenia Mine Sites

doi:10.3390/met11030425

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	The Effect of Metal Ions on the Growth and Ferrous IronOxidation by Leptospirillum ferriphilum CC Isolated from Armenia Mine Sites
	Khachatryan, Anna 2; Vardanyan, Narine 2; Vardanyan, Arevik 2; Zhang, Ruiyong 1,4,5; Castro, Laura 3
刊名	METALS
	2021-03-01
卷号	11 期号:3 页码:13
关键词	leptospirillum ferriphilum iron-oxidizing kinetics specific grow rate saturation constant tolerance to metal ions
DOI	10.3390/met11030425
通讯作者	Vardanyan, Narine(nvard@sci.am) ; Zhang, Ruiyong(ruiyong.zhang@uni-due.de)
英文摘要	The aim of this study is to investigate the potential of newly isolated strain Leptospirillum (L.) ferriphilum CC for bioleaching of pyrite and chalcopyrite in pure or mixed culture with other iron- and/or sulfur-oxidizing bacteria. In this paper, kinetics of ferrous iron (Fe2+) oxidation by newly isolated strain Leptospirillum (L.) ferriphilum CC was studied. The effect of initial Fe2+ in the concentration range of 50-400 mM on bacterial growth and iron oxidation was studied. It was shown that microbial Fe2+ oxidation was competitively inhibited by Fe3+. The influence of copper, zinc, nickel and cobalt ions on the oxidation of Fe2+ by L. ferriphilum CC was also studied. Minimal inhibitory concentrations (MIC) for each metal ion were determined. The toxicity of the ions was found to be as follows: Co > Zn > Ni > Cu. The comparison of iron oxidation kinetic parameters of L. ferriphilum CC with other strains of L. ferriphilum indicates the high potential of strain L. ferriphilum CC for biogenic regeneration of concentrated ferric iron (Fe3+) in bioleaching processes of ores and ore concentrates. Bioleaching tests indicated that the newly isolated L. ferriphilum CC can be a prospective strain for the bioleaching of sulfide minerals in pure culture or in association with other iron- and/or sulfur-oxidizing bacteria.
资助项目	Spanish Ministry of Economy and Competitiveness[MAT2014-59222R]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	MDPI
WOS记录号	WOS:000633879400001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/170296]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Vardanyan, Narine; Zhang, Ruiyong
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Natl Acad Sci Armenia, Dept Microbiol, SPC Armbiotechnol, 14 Gyurjyan Str, Yerevan 0056, Armenia 3.Rey Juan Carlos Univ, Sch Expt Sci & Technol, Dept Appl Math Mat Sci & Engn & Elect Technol, Mostoles 28935, Spain 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Khachatryan, Anna,Vardanyan, Narine,Vardanyan, Arevik,et al. The Effect of Metal Ions on the Growth and Ferrous IronOxidation by Leptospirillum ferriphilum CC Isolated from Armenia Mine Sites[J]. METALS,2021,11(3):13.
APA	Khachatryan, Anna,Vardanyan, Narine,Vardanyan, Arevik,Zhang, Ruiyong,&Castro, Laura.(2021).The Effect of Metal Ions on the Growth and Ferrous IronOxidation by Leptospirillum ferriphilum CC Isolated from Armenia Mine Sites.METALS,11(3),13.
MLA	Khachatryan, Anna,et al."The Effect of Metal Ions on the Growth and Ferrous IronOxidation by Leptospirillum ferriphilum CC Isolated from Armenia Mine Sites".METALS 11.3(2021):13.