Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
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 |
ISSN | 1758-2229 |
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. |
DOI | 10.1111/1758-2229.12933 |
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 | |
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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1758-2229.12933.pdf(4974KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 |
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