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Choi JW, Lee JY, Hyun DW, Lee JY, Kim PS, Han JE, Jeong YS, Lee SY, Sung H, Tak EJ, Kim HS, Bae JW. Chitinibacter bivalviorum sp. nov., isolated from the gut of the freshwater mussel Anodonta arcaeformis. Int J Syst Evol Microbiol 2021; 71. [PMID: 34296988 DOI: 10.1099/ijsem.0.004909] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-negative, aerobic, rod-shaped bacterium with a single polar flagellum, designated strain 2T18T, was isolated from the gut of the freshwater mussel Anodonta arcaeformis collected in the Republic of Korea. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain belonged to the genus Chitinibacter. Strain 2T18T formed a monophyletic clade with Chitinibacter fontanus KCTC 42982T, C. tainanensis KACC 11706T and C. alvei KCTC 23839T, with sequence similarities of 98.5, 98.4 and 95.9 %, respectively. Strain 2T18T exhibited optimal growth at 30 °C, at pH 8 and with 0.5 % (w/v) NaCl. The major isoprenoid quinone was ubiquinone-8 (Q-8). The predominant fatty acids were summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c) and C16 : 0. The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, one unidentified lipid, three unidentified phospholipids and two unidentified aminophospholipids. The G+C content of the genomic DNA was 50.6 mol%. The average nucleotide identity and digital DNA-DNA hybridization values between strains 2T18T and C. fontanus KCTC 42982T were below the thresholds used for the delineation of a novel species. Based on the phylogenetic, phenotypic, chemotaxonomic and genotypic characteristics, strain 2T18T represents a novel species of the genus Chitinibacter, for which the name Chitinibacter bivalviorum sp. nov. is proposed. The type strain is 2T18T (=KCTC 72821T=CCUG 74764T).
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Affiliation(s)
- Jee-Won Choi
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Jae-Yun Lee
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Dong-Wook Hyun
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - June-Young Lee
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Pil Soo Kim
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Jeong Eun Han
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Yun-Seok Jeong
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - So-Yeon Lee
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Hojun Sung
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Euon Jung Tak
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Hyun Sik Kim
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Jin-Woo Bae
- Department of Biology and Department of Biomedical and Pharmaceutical Sciences and Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
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Zhang A, Mo X, Wei G, Zhou N, Yang S, Chen J, Wang Y, Chen K, Ouyang P. The Draft Genome Sequence and Analysis of an Efficiently Chitinolytic Bacterium Chitinibacter sp. Strain GC72. Curr Microbiol 2020; 77:3903-3908. [PMID: 32980915 DOI: 10.1007/s00284-020-02215-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 09/15/2020] [Indexed: 11/25/2022]
Abstract
A novel chitinolytic bacterium Chitinibacter sp. GC72, which produces an enzyme capable of efficiently converting chitin only into N-acetyl-D-glucosamine (GlcNAc), was successfully sequenced and analyzed. The assembled draft genome of strain GC72 is 3,455,373 bp, containing 3346 encoded protein sequences with G + C content of 53.90%. Among these annotated genes, 17 chitinolytic enzymes including 12 glycoside hydrolase family 18 chitinases, three family 19 chitinases, one family 20 β-hexosaminidase, and one auxiliary activity family 10 lytic polysaccharide monooxygenase, were found to be essential in the production of GlcNAc from chitin. The genomic information of strain GC72 provides a reference genome for Chitinibacter bacteria and abundant novel chitinolytic enzyme resources, and allows researchers to explore potential applications in GlcNAc enzymatic production.
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Affiliation(s)
- Alei Zhang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Xiaofang Mo
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Guoguang Wei
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Ning Zhou
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Sai Yang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Jie Chen
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Yingying Wang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Kequan Chen
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China.
| | - Pingkai Ouyang
- College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
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