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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
Source PublicationENVIRONMENTAL MICROBIOLOGY
ISSN1462-2912
Pages15
Corresponding AuthorSun, Chaomin(sunchaomin@qdio.ac.cn)
AbstractHeavy 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
Indexed BySCI
Language英语
Funding ProjectStrategic 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 Research AreaMicrobiology
WOS SubjectMicrobiology
WOS IDWOS:000566517400001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/168505
Collection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
Corresponding AuthorSun, Chaomin
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res
Recommended Citation
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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