Department of Environmental Engineering, College of Science and Technology, Korea University Sejong Campus, 2511 Sejong-ro, Sejong City, 30019, Republic of Korea.
Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea.
Arch Microbiol. 2021 Aug;203(6):3071-3076. doi: 10.1007/s00203-021-02295-6. Epub 2021 Mar 31.
An orange-coloured, rod-shaped, and aerobic bacterial strain DKR-6 was isolated from oil-contaminated experimental soil. The strain was Gram-stain-negative, catalase and oxidase positive, and grew at temperature 10-42 °C, at pH 5.5-9.5, and at 0-3.0% (w/v) NaCl concentration. The phylogenetic analysis and 16S rRNA gene sequence analysis suggested that the strain DKR-6 was affiliated to the genus Noviherbaspirillum, with the closest species being Noviherbaspirillum massiliense JC206 (96.3% sequence similarity). The chemotaxonomic profiles revealed the presence of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, and phosphatidylcholine as the principal polar lipids; C, C cyclo, summed feature 3 (Cω7c and/or Cω6c), and summed feature 8 (Cω7c/or Cω6c) as the main fatty acids; and Q-8 as a sole ubiquinone. The DNA G + C content was 61.6%. The polyphasic taxonomic features illustrated in this study clearly implied that strain DKR-6 represents a novel species in the genus Noviherbaspirillum, for which the name Noviherbaspirillum pedocola sp. nov. is proposed with the type strain DKR-6 (= KACC 22074 = NBRC 114727).
从污染实验土壤中分离到一株橙色、杆状、需氧细菌菌株 DKR-6。该菌株革兰氏染色阴性,过氧化氢酶和氧化酶阳性,生长温度为 10-42°C,pH 值为 5.5-9.5,盐浓度为 0-3.0%(w/v)。系统发育分析和 16S rRNA 基因序列分析表明,菌株 DKR-6 属于 Noviherbaspirillum 属,与最接近的种 Noviherbaspirillum massiliense JC206(96.3%序列相似性)最为相似。化学分类特征表明,该菌株存在磷脂酰乙醇胺、磷脂酰甘油、双磷脂酰甘油和磷脂酰胆碱作为主要极性脂;C、C 环,总和特征 3(Cω7c 和/或 Cω6c)和总和特征 8(Cω7c 或 Cω6c)作为主要脂肪酸;和 Q-8 作为唯一的泛醌。DNA G+C 含量为 61.6%。多相分类特征清楚地表明,菌株 DKR-6 代表 Noviherbaspirillum 属中的一个新种,建议将其命名为 Noviherbaspirillum pedocola sp. nov.,其模式菌株为 DKR-6(=KACC 22074= NBRC 114727)。