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Wang X, He Y, Deng Y, Zuo Z, Li D, Chen F, Qu C, Miao J. A diguanylate cyclase regulates biofilm formation in Rhodococcus sp. NJ-530 from Antarctica. 3 Biotech 2022; 12:27. [PMID: 35036275 PMCID: PMC8710177 DOI: 10.1007/s13205-021-03093-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/11/2021] [Indexed: 01/03/2023] Open
Abstract
Biofilms represent a protective survival mode in which bacteria adapt themselves to the natural environment for survival purposes. Biofilm formation is regulated by 3,5-cyclic diguanylic acid (c-di-GMP), which is a universal second messenger molecule in bacteria. Diguanylate cyclase (DGC) catalyses c-di-GMP intracellular synthesis, which plays important roles in bacterial adaptation to the natural environment. In this study, the DGC gene was first cloned from Antarctic Rhodococcus sp. NJ-530. DGC contained 948 nucleotides and encoded 315 amino acids with a molecular weight of 34.6 KDa and an isoelectric point of 5.58. qRT-PCR demonstrated that the DGC expression level was significantly affected by lower salinity and temperature. Consistently, more biofilm formation occurred under the same stress. It has been shown that Rhodococcus sp. NJ-530 can adapt to the extreme environment in Antarctica, which is closely related to biofilm formation. These results provide an important reference for studying the adaptive mechanism of Antarctic microorganisms to this extreme environment. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-03093-z.
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Affiliation(s)
- Xixi Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Yashan Deng
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Zhicong Zuo
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Dan Li
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Fushan Chen
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
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