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Formation of cadmium sulfide nanoparticles mediates cadmium resistance and light utilization of the deep-sea bacteriumIdiomarinasp.OT37-5b
Ma, Ning1,2,3,4; Sha, Zhongli4,5,6; Sun, Chaomin1,2,4,6
2020-09-07
发表期刊ENVIRONMENTAL MICROBIOLOGY
ISSN1462-2912
页码15
通讯作者Sun, Chaomin(sunchaomin@qdio.ac.cn)
摘要Heavy metal is one of the major factors threatening the survival of microorganisms. Here, a deep-sea bacterium designatedIdiomarinasp. OT37-5b possessing strong cadmium (Cd) tolerance was isolated from a typical hydrothermal vent. Both the Cd-resistance and removal efficiency ofIdiomarinasp. OT37-5b were significantly promoted by the supplement of cysteine and meanwhile large amount of CdS nanoparticles were observed. Production of H2S from cysteine catalysed by methionine gamma-lyase was further demonstrated to contribute to the formation of CdS nanoparticles. Proteomic results showed the addition of cysteine effectively enhanced the efflux of Cd, improved the activities of reactive oxygen species scavenging enzymes, and thereby boosted the nitrogen reduction and energy production ofIdiomarinasp. OT37-5b. Notably, the existence of CdS nanoparticles obviously promoted the growth ofIdiomarinasp. OT37-5b when exposed to light, indicating this bacterium might grab light energy through CdS nanoparticles. Proteomic analysis revealed the expression levels of essential components for light utilization including electron transport, cytochrome complex and F-type ATPase were significantly up-regulated, which strongly suggested the formation of CdS nanoparticles promoted light utilization and energy production. Our results provide a good model to investigate the uncovered mechanisms of self-photosensitization of nonphotosynthetic bacteria for light-to-chemical production in the deep biosphere.
DOI10.1111/1462-2920.15205
收录类别SCI
语种英语
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22050301] ; China Ocean Mineral Resources R&D Association Grant[DY135-B2-14] ; National Key R and D Program of China[2018YFC0310800] ; Taishan Young Scholar Program of Shandong Province[tsqn20161051] ; Qingdao Innovation Leadership Program[18-1-2-7-zhc]
WOS研究方向Microbiology
WOS类目Microbiology
WOS记录号WOS:000566517400001
出版者WILEY
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/168505
专题实验海洋生物学重点实验室
海洋生物分类与系统演化实验室
通讯作者Sun, Chaomin
作者单位1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China
5.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China
6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
第一作者单位中国科学院海洋研究所;  深海极端环境与生命过程研究中心
通讯作者单位中国科学院海洋研究所;  深海极端环境与生命过程研究中心
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GB/T 7714
Ma, Ning,Sha, Zhongli,Sun, Chaomin. Formation of cadmium sulfide nanoparticles mediates cadmium resistance and light utilization of the deep-sea bacteriumIdiomarinasp.OT37-5b[J]. ENVIRONMENTAL MICROBIOLOGY,2020:15.
APA Ma, Ning,Sha, Zhongli,&Sun, Chaomin.(2020).Formation of cadmium sulfide nanoparticles mediates cadmium resistance and light utilization of the deep-sea bacteriumIdiomarinasp.OT37-5b.ENVIRONMENTAL MICROBIOLOGY,15.
MLA Ma, Ning,et al."Formation of cadmium sulfide nanoparticles mediates cadmium resistance and light utilization of the deep-sea bacteriumIdiomarinasp.OT37-5b".ENVIRONMENTAL MICROBIOLOGY (2020):15.
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