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Liu J, Li J, Luo J, Li Y, Yang Z, Huang C, Sun F, Wang G. Sessilibacter corallicola gen. nov., sp. nov., a sessile bacterium isolated from coral Porites lutea. Int J Syst Evol Microbiol 2022; 72. [PMID: 35639595 DOI: 10.1099/ijsem.0.005401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Abstract
A Gram-stain-negative, non-spore-forming, motile, aerobic bacterium (strain C21T) was isolated from coral and identified using polyphasic identification approach. Global alignment of 16S rRNA gene sequences indicated that strain C21T shares 95.7 % sequence identity to its closest neighbour, Marinibactrum halimedae NBRC 110095T, followed by other type strains with identities of lower than 95 %. The average nucleotide identity and average amino acid identity values between strain C21T and M. halimedae NBRC 110095T were 69.6 and 64.8 %, respectively, indicating that strain C21T may represent a new species in a new genus. Phylogenetic analysis based on 16S rRNA gene and phylogenomic results indicated that strain C21T forms a distinct branch in the family Cellvibrionaceae. Cellular fatty acids and polar lipids could also readily distinguish strain C21T from closely related type strains. Therefore, strain C21T is suggested to represent a new species in a new genus, for which the name Sessilibacter corallicola gen. nov., sp. nov. is proposed. The type strain is C21T (=MCCC 1K03260T=KCTC 62317T).
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Affiliation(s)
- Jianfeng Liu
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Jin Li
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Jixin Luo
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Yuanjin Li
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Zian Yang
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Chengli Huang
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Feilong Sun
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China
| | - Guanghua Wang
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
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Wang G, Zheng X, Xu S, Dang G, Su H, Liao Z, Chen B, Huang W, Liang J, Yu K. Exilibacterium tricleocarpae gen. nov., sp. nov., a marine bacterium from coralline algae Tricleocarpa sp. Int J Syst Evol Microbiol 2020; 70:3427-3432. [PMID: 32375976 DOI: 10.1099/ijsem.0.004189] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, non-spore-forming, aerobic, curved rod-shaped bacterium, designed strain R142T, was isolated from a coralline algae Tricleocarpa sp. in the Beibu Gulf, China. Optimal growth occurred with 0-0.5 % (w/v) NaCl, at 25 °C and at pH 8. Global alignment based on 16S rRNA gene sequences indicated that strain R142T shared 93.8 % similarity with its closest type strain, Pseudomaricurvus alkylphenolicus KU14GT. Phylogenetic analyses showed that strain R142T forms a distinct branch alongside Maricurvus nonylphenolicus KU41ET, Pseudoteredinibacter isoporae SW-11T, Pseudomaricurvus alkylphenolicus KU14GT, Pseudomaricurvus alcaniphilus MEBiC06469T and Aestuariicella hydrocarbonica SM-6T. The major polar lipids of strain R142T were phosphatidylethanolamine and phosphatidylglycerol. The primary cellular fatty acids were C16 : 0, C16 : 1ω7c, C18 : 1ω7c, C18 : 0 and C14 : 0. The genome DNA G+C ratio was 56.4 mol%. The only detected respiratory quinone was ubiquinone 8. The low 16S rRNA gene sequence similarity and differences in cellular fatty acids readily distinguished strain R142T from all validly published type strains. Strain R142T is therefore suggested to represent a novel species of a new genus, for which the name Exilibacterium tricleocarpae gen. nov., sp. nov. is proposed. The type strain of Exilibacterium tricleocarpae is R142T (=MCCC 1K03816T=KCTC 72138T).
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Affiliation(s)
- Guanghua Wang
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China.,School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China
| | - Xinfeng Zheng
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Shuailiang Xu
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Ge Dang
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Hongfei Su
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Zhiheng Liao
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Biao Chen
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Wen Huang
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Jiayuan Liang
- School of Marine Sciences, Guangxi University, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China
| | - Kefu Yu
- Guangxi Key Laboratory on the Study of Coral Reefs in the South China Sea, Nanning 530004, PR China.,Coral Reef Research Center of China, Guangxi University, Nanning 530004, PR China.,School of Marine Sciences, Guangxi University, Nanning 530004, PR China
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