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Cadmium sulfide nanoparticle biomineralization and biofilm formation mediate cadmium resistance of the deep-sea bacterium Pseudoalteromonas sp. MT33b
Ma, Ning1,2,3,4,5; Sun, Chaomin1,2,3,5
2021-02-07
发表期刊ENVIRONMENTAL MICROBIOLOGY REPORTS
ISSN1758-2229
页码12
通讯作者Sun, Chaomin(sunchaomin@qdio.ac.cn)
摘要Cadmium (Cd) is a common toxic heavy metal in the environment, and bacteria have evolved different strategies to deal with Cd toxicity. Here, a bacterium designated Pseudoalteromonas sp. MT33b possessing strong Cd resistance was isolated from the Mariana Trench sediments. Supplement of cysteine significantly increased bacterial Cd resistance and removal rate. Biofilm formation was demonstrated to play a positive role toward bacterial Cd resistance. Transcriptome analysis showed the supplement of cysteine effectively prevented Cd2+ from entering bacterial cells, promoted saccharide metabolism and thereby facilitating energy production, which consists well with bacterial growth trend analysed under the same conditions. Notably, the expressions of many biofilm formation related genes including flagellar assembly, signal transduction, bacterial secretion and TonB-dependent transfer system were significantly upregulated when facing Cd stress, indicating their important roles in determining bacterial biofilm formation and enhancing Cd resistance. Overall, this study indicates the formation of insoluble CdS precipitates and massive biofilm is the major strategy adopted by Pseudoalteromonas sp. MT33b to eliminate Cd stress. Our results provide a good model to investigate how heavy metals impact biofilm formation in the deep-sea ecosystems, which may facilitate a deeper understanding of microbial environmental adaptability and better utilization of these microbes for bioremediation purposes in the future.
DOI10.1111/1758-2229.12933
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] ; Major Research Plan of the National Natural Science Foundation[92051107] ; Key Deployment Projects of Center of Ocean Mega-Science of the Chinese Academy of Sciences[COMS2020Q04] ; 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Environmental Sciences & Ecology ; Microbiology
WOS类目Environmental Sciences ; Microbiology
WOS记录号WOS:000615784900001
出版者WILEY
引用统计
被引频次:15[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/337002/169671
专题实验海洋生物学重点实验室
深海极端环境与生命过程研究中心
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.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266071, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
5.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
推荐引用方式
GB/T 7714
Ma, Ning,Sun, Chaomin. Cadmium sulfide nanoparticle biomineralization and biofilm formation mediate cadmium resistance of the deep-sea bacterium Pseudoalteromonas sp. MT33b[J]. ENVIRONMENTAL MICROBIOLOGY REPORTS,2021:12.
APA Ma, Ning,&Sun, Chaomin.(2021).Cadmium sulfide nanoparticle biomineralization and biofilm formation mediate cadmium resistance of the deep-sea bacterium Pseudoalteromonas sp. MT33b.ENVIRONMENTAL MICROBIOLOGY REPORTS,12.
MLA Ma, Ning,et al."Cadmium sulfide nanoparticle biomineralization and biofilm formation mediate cadmium resistance of the deep-sea bacterium Pseudoalteromonas sp. MT33b".ENVIRONMENTAL MICROBIOLOGY REPORTS (2021):12.
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