Department of Life Science, Chung-Ang University, 84, HeukSeok-Ro, Dongjak-Gu, Seoul, 06974, Republic of Korea.
Curr Microbiol. 2021 Jul;78(7):2548-2555. doi: 10.1007/s00284-021-02515-8. Epub 2021 May 7.
Strain H239, a gram-negative, strictly aerobic, and oxidase-positive, and catalase-negative bacterium, was isolated from mountain soil in Gangwon-do of South Korea. Colonies were orange colored, and cells were motile rods with a single polar flagellum. Growth was observed between 25 and 30 °C (optimum, 30 °C), between pH 7.0 and pH 9.0 (optimum, pH 7.5), and in the presence of 0-1.5% (w/v) NaCl (optimum 0.5-1%). Ubiquinone-10 was detected as the sole respiratory quinone. The major fatty acids (>10%) of strain H239 were C ω7c, C, and C. The polar lipids detected from strain H239 consisted of two unidentified glycolipids, two unidentified phospholipids, and three unidentified polar lipids. The G+C content of strain H239 based on its genome sequence was 62.0 mol%. Comparative 16S rRNA gene sequence analysis indicated that strain H239 was most closely related to Devosia chinhatensis IPL18 (97.7%), Devosia submarina KMM 9415 (97.7%), and Devosia yakushimensis Yak96B (97.3%). Phylogenetic analyses based on the 16S rRNA gene and whole-genome sequences revealed that strain H239 formed a distinct phyletic lineage as a new species within the genus Devosia. Based on its physiological, chemotaxonomic, and molecular properties, strain H239 represents a novel species of the genus Devosia, for which the name Devosia aurantiaca sp. nov. is proposed. The type strain is H239 (=KACC 21662=JCM 33930). In addition, because the prokaryotic genus name Geomonas Khan et al. 2020 is a later homonym of Geomonas Xu et al. 2020, the name is illegitimate (Principle 6 in the International Code of Nomenclature of Prokaryotes). Therefore, we propose to replace the problematic prokaryotic names Geomonas and Geomonas soli with Albitalea with Albitalea terrae, respectively.
菌株 H239 是一株革兰氏阴性、严格需氧、氧化酶阳性、过氧化氢酶阴性的细菌,从韩国江原道的山地土壤中分离得到。菌落呈橙色,细胞呈运动性杆状,有一个单极鞭毛。在 25-30°C(最佳温度 30°C)、pH7.0-pH9.0(最佳 pH7.5)和 0-1.5%(w/v)NaCl(最佳 0.5-1%)的条件下可以观察到生长。菌株 H239 检测到的唯一呼吸醌是泛醌-10。菌株 H239 的主要脂肪酸(>10%)为 C ω7c、C 和 C 。从菌株 H239 中检测到的极性脂类包括两种未鉴定的糖脂、两种未鉴定的磷脂和三种未鉴定的极性脂类。基于其基因组序列,菌株 H239 的 G+C 含量为 62.0mol%。比较 16S rRNA 基因序列分析表明,菌株 H239 与 Devosia chinhatensis IPL18(97.7%)、Devosia submarina KMM 9415(97.7%)和 Devosia yakushimensis Yak96B(97.3%)最为密切相关。基于 16S rRNA 基因和全基因组序列的系统发育分析表明,菌株 H239 在 Devosia 属内形成了一个独特的进化枝,是一个新的物种。根据其生理、化学分类学和分子特性,菌株 H239 代表 Devosia 属的一个新种,建议将其命名为 Devosia aurantiaca sp. nov. 。模式菌株为 H239(=KACC 21662=JCM 33930)。此外,由于原核生物属名 Geomonas Khan 等人 2020 是 Geomonas Xu 等人 2020 的晚同名,因此该名称是不合法的(《原核生物国际命名法规》第 6 原则)。因此,我们建议分别将有问题的原核生物名称 Geomonas 和 Geomonas soli 用 Albitalea terrae 替代。