Kim Yong-Seok, Cha Chang-Jun
Department of Systems Biotechnology, Chung-Ang University, Anseong 17546, Republic of Korea.
Int J Syst Evol Microbiol. 2018 Mar;68(3):936-941. doi: 10.1099/ijsem.0.002613. Epub 2018 Feb 2.
A Gram-stain-variable, aerobic, rod-shaped, motile and spore-forming bacterial strain, designated CJ11, was isolated from a tidal flat sediment sample from Ganghwa-do, Republic of Korea. Strain CJ11 grew optimally on R2A at 30 °C and pH 7.0. Sequencing results of the 16S rRNA gene revealed that strain CJ11 possesses two copies of the 16S rRNA gene varying at five nucleotide positions. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain CJ11 belonged to the genus Paenibacillus within the family Paenibacillaceae and was most closely related to Paenibacillus lacus KCTC 33691 (99.36-99.15 % similarity). DNA-DNA relatedness levels of strain CJ11 was 41.7 % (reciprocal, 57.8 %) to P. lacus KCTC 33691. The G+C content of the genomic DNA was 51.0 mol%. Strain CJ11contained meso-diaminopimelic acid in the cell-wall peptidoglycan. The major isoprenoid quinone was menaquinone-7. The major cellular fatty acids were anteiso-C15 : 0, C16 : 0 and iso-C16 : 0. The predominant polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, two unidentified phospholipids, an unidentified glycolipid and several unidentified lipids. On the basis of the polyphasic taxonomic study, strain CJ11 represents a novel species in the genus Paenibacillus, for which the name Paenibacillustranslucens sp. nov. is proposed. The type strain is CJ11 (=KACC 19304=JCM 32080).
从韩国江华岛的潮滩沉积物样本中分离出一株革兰氏染色可变、需氧、杆状、具运动性且产芽孢的细菌菌株,命名为CJ11。菌株CJ11在R2A培养基上于30 °C和pH 7.0条件下生长最佳。16S rRNA基因测序结果显示,菌株CJ11拥有两个16S rRNA基因拷贝,在五个核苷酸位置存在差异。基于16S rRNA基因序列的系统发育分析表明,菌株CJ11属于芽孢杆菌科的类芽孢杆菌属,与湖泊类芽孢杆菌KCTC 33691关系最为密切(相似性为99.36 - 99.15 %)。菌株CJ11与湖泊类芽孢杆菌KCTC 33691的DNA - DNA相关性水平为41.7 %(相互,57.8 %)。基因组DNA的G + C含量为51.0 mol%。菌株CJ11的细胞壁肽聚糖中含有内消旋二氨基庚二酸。主要类异戊二烯醌为甲基萘醌 - 7。主要细胞脂肪酸为anteiso - C15 : 0、C16 : 0和iso - C16 : 0。主要极性脂质为双磷脂酰甘油、磷脂酰甘油、磷脂酰乙醇胺、两种未鉴定的磷脂、一种未鉴定的糖脂和几种未鉴定的脂质。基于多相分类研究,菌株CJ11代表类芽孢杆菌属中的一个新物种,为此提出名为透明类芽孢杆菌(Paenibacillus translucens sp. nov.)的名称。模式菌株为CJ11(=KACC 19304 =JCM 32080)。