Jiang Lingmin, Jung Won Yong, Li Zhun, Lee Mi-Kyung, Park Seung-Hwan, Kang Se Won, Lee Jung-Sook, Jung Hyunjung, Hur Tai-Young, Kim Hyeun Bum, Kim Jae-Kyung, Lee Ju-Hoon, Lee Ju Huck, Lee Jiyoung
Korean Collection for Type Cultures (KCTC), Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea.
Korean Bioinformation Center (KOBIC), Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea.
Int J Syst Evol Microbiol. 2019 Jun;71(3). doi: 10.1099/ijsem.0.004721. Epub 2021 Mar 2.
A Gram-stain-positive, facultatively anaerobic, endospore-forming, rod-shaped strain, AGMB 02131, which grew at 20-40 °C (optimum 30 °C), pH 3.0-11.0 (optimum pH 4.0) and in the presence of 0-18 % (w/v) NaCl (optimum 10 %), was isolated from a cow faecal sample and identified as a novel strain using a polyphasic taxonomic approach. The phylogenetic analysis based on 16S rRNA gene sequences along with the whole genome (92 core gene sets) revealed that AGMB 02131 formed a group within the genus , and showed the highest sequence similarity with DSM 28131 (96.9 %), following by DSM 18926 (96.6 %). The genome of AGMB 02131 comprised 70 contigs, the chromosome length was 4 038 965 bp and it had a 38.5 % DNA G+C content. Digital DNA-DNA hybridization revealed that AGMB 02131 displayed 21.4 % genomic DNA relatedness with the most closely related strain, DSM 18926. AGMB 02131 contains all of the conserved signature indels that are specific for members of the genus . The major cellular fatty acids (>10 %) of AGMB 02131 were Cω9, C and C. The major polar lipids present were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. On the basis of the phenotypic, phylogenetic, genomic and chemotaxonomic features, AGMB 02131 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is AGMB 02131 (=KCTC 43221=CCTCC AB 2020077).
从一份牛粪样本中分离出一株革兰氏染色阳性、兼性厌氧、产芽孢、杆状的菌株AGMB 02131,该菌株在20-40 °C(最适温度30 °C)、pH 3.0-11.0(最适pH 4.0)以及0-18 %(w/v)NaCl(最适浓度10 %)的条件下生长。采用多相分类方法将其鉴定为一个新菌株。基于16S rRNA基因序列以及全基因组(92个核心基因集)的系统发育分析表明,AGMB 02131在该属内形成一个分支,与DSM 28131(96.9 %)序列相似性最高,其次是DSM 18926(96.6 %)。AGMB 02131的基因组由70个重叠群组成,染色体长度为4 038 965 bp,DNA G+C含量为38.5 %。数字DNA-DNA杂交显示,AGMB 02131与最相近的菌株DSM 18926的基因组DNA相关性为21.4 %。AGMB 02131包含该属成员特有的所有保守特征性插入缺失。AGMB 02131的主要细胞脂肪酸(>10 %)为Cω9、C和C。主要的极性脂质为双磷脂酰甘油、磷脂酰甘油和磷脂酰乙醇胺。基于表型、系统发育、基因组和化学分类特征,AGMB 02131代表该属的一个新物种,为此提议将其命名为sp. nov.。模式菌株为AGMB 02131(=KCTC 43221=CCTCC AB 2020077)。