Magnetite compensates for the lack of a pilin-associated c-type cytochrome in extracellular electron exchange

doi:10.1111/1462-2920.12485

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	Magnetite compensates for the lack of a pilin-associated c-type cytochrome in extracellular electron exchange
	Liu, FH; Rotaru, AE; Shrestha, PM; Malvankar, NS; Nevin, KP; Lovley, DR; Liu, FH (reprint author), Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA. [email protected]
发表期刊	ENVIRONMENTAL MICROBIOLOGY
ISSN	1462-2912
	2015-03
卷号	17 期号:3 页码:648-655
关键词	Geobacter-sulfurreducens Magnetotactic Bacteria Reducing Microorganism Microbial Nanowires Fe(Iii) Reduction Genetic System Sp-nov Oxide Biofilms Iron
DOI	10.1111/1462-2920.12485
产权排序	[Liu, Fanghua; Rotaru, Amelia-Elena; Shrestha, Pravin M.; Malvankar, Nikhil S.; Nevin, Kelly P.; Lovley, Derek R.] Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA; [Liu, Fanghua] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Utilizat, Yantai 264003, Shandong, Peoples R China
作者部门	海岸带生物学与生物资源利用所重点实验室
英文摘要	Nanoscale magnetite can facilitate microbial extracellular electron transfer that plays an important role in biogeochemical cycles, bioremediation and several bioenergy strategies, but the mechanisms for the stimulation of extracellular electron transfer are poorly understood. Further investigation revealed that magnetite attached to the electrically conductive pili of Geobacter species in a manner reminiscent of the association of the multi-heme c-type cytochrome OmcS with the pili of Geobacter sulfurreducens. Magnetite conferred extracellular electron capabilities on an OmcS-deficient strain unable to participate in interspecies electron transfer or Fe(III) oxide reduction. In the presence of magnetite wild-type cells repressed expression of the OmcS gene, suggesting that cells might need to produce less OmcS when magnetite was available. The finding that magnetite can compensate for the lack of the electron transfer functions of a multi-heme c-type cytochrome has implications not only for the function of modern microbes, but also for the early evolution of microbial electron transport mechanisms.
文章类型	期刊论文
资助机构	Microbiology
收录类别	SCI
语种	英语
关键词[WOS]	GEOBACTER-SULFURREDUCENS ; MAGNETOTACTIC BACTERIA ; REDUCING MICROORGANISM ; MICROBIAL NANOWIRES ; FE(III) REDUCTION ; GENETIC SYSTEM ; SP-NOV ; OXIDE ; BIOFILMS ; IRON
研究领域[WOS]	Strategic Priority Research Program of the Chinese Academy of Sciences [XDA11020403] ; Key Research Program of the Chinese Academy of Sciences [KZZD-EW-14] ; 100 Talents Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China [41371257] ; Office of Science (BER), U.S. Department of Energy [DE-SC0004485]
WOS记录号	WOS:000351435600011
引用统计	被引频次：286[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.cn/handle/133337/8512
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
通讯作者	Liu, FH (reprint author), Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA. [email protected]
推荐引用方式 GB/T 7714	Liu, FH,Rotaru, AE,Shrestha, PM,et al. Magnetite compensates for the lack of a pilin-associated c-type cytochrome in extracellular electron exchange[J]. ENVIRONMENTAL MICROBIOLOGY,2015,17(3):648-655.
APA	Liu, FH.,Rotaru, AE.,Shrestha, PM.,Malvankar, NS.,Nevin, KP.,...&Liu, FH .(2015).Magnetite compensates for the lack of a pilin-associated c-type cytochrome in extracellular electron exchange.ENVIRONMENTAL MICROBIOLOGY,17(3),648-655.
MLA	Liu, FH,et al."Magnetite compensates for the lack of a pilin-associated c-type cytochrome in extracellular electron exchange".ENVIRONMENTAL MICROBIOLOGY 17.3(2015):648-655.