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Zou Y, Xue W, Lin X, Lv M, Luo G, Dai Y, Sun H, Liu SW, Sun CH, Hu T, Xiao L. Butyribacter intestini gen. nov., sp. nov., a butyric acid-producing bacterium of the family Lachnospiraceae isolated from human faeces, and reclassification of Acetivibrio ethanolgignens as Acetanaerobacter ethanolgignens gen. nov., comb. nov. Syst Appl Microbiol 2021; 44:126201. [PMID: 33892267 DOI: 10.1016/j.syapm.2021.126201] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 03/11/2021] [Accepted: 03/18/2021] [Indexed: 12/19/2022]
Abstract
A novel, non-motile, Gram-stain-positive, non-spore-forming, obligate anaerobic bacterium, designated strain TF01-11T, was isolated from human faeces. The isolate was characterized by phylogenetic and phenotypic properties, as well as by determination of its whole genome sequence. The growth temperature and pH ranges were 30-42 °C and 6.0-8.5, respectively. The end products of glucose fermentation were butyric acid and a small amount of acetic acid. The genome was estimated to be 3.61 Mbp with G + C content of 36.8 mol%. Genes related to biosynthesis of diaminopimelic acid, polar lipids, polyamines, teichoic and lipoteichoic acids were present. The predominant fatty acids were C16:0 (37.9%), C14:0 (16.4%), C13:0 OH/iso-C15:1H (11.1%) and C18:1ω9c (10.6%). Phylogenetic analyses based on 16S rRNA gene sequences demonstrated that the isolate was a member of family Lachnospiraceae, with the highest sequence similarity to the type strain of Roseburia intestinalis DSM 14610T (92.2%), followed by Acetivibrio ethanolgignens ATCC 33324T (92.0%). The average nucleotide identity (ANI) and average amino acid identity (AAI) values between strain TF01-11T and these closest relatives were less than 70.5% and 52.3%. Based on results of phenotypic characteristics and genotypic properties presented in this study, strain TF01-11T represents a novel species in a new genus, for which the name Butyribacter intestini gen. nov., sp. nov. is proposed. The type strain of the type species is TF01-11T (CGMCC 1.5203T = DSM 105140T). In addition, Acetivibrio ethanolgignens is proposed to be reclassified as Acetanaerobacter ethanolgignens gen. nov., comb. nov.
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Affiliation(s)
- Yuanqiang Zou
- BGI-Shenzhen, Shenzhen 518083, China; Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Universitetsparken 13, 2100 Copenhagen, Denmark; Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, BGI-Shenzhen, Shenzhen, China; Qingdao-Europe Advanced Institute for Life Sciences, BGI-Shenzhen, Qingdao 266555, China.
| | | | - Xiaoqian Lin
- BGI-Shenzhen, Shenzhen 518083, China; School of Bioscience and Biotechnology, South China University of Technology, Guangzhou 510006, China
| | - Mei Lv
- BGI-Shenzhen, Shenzhen 518083, China
| | | | - Ying Dai
- BGI-Shenzhen, Shenzhen 518083, China
| | | | - Shao-Wei Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Cheng-Hang Sun
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | | | - Liang Xiao
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Engineering Laboratory of Detection and Intervention of Human Intestinal Microbiome, BGI-Shenzhen, Shenzhen, China; Qingdao-Europe Advanced Institute for Life Sciences, BGI-Shenzhen, Qingdao 266555, China; BGI College & Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, China.
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