Department of Microbiology, Chung-Ang University College of Medicine, Seoul, 06974, Republic of Korea.
Korean Collection for Type Cultures, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea.
Curr Microbiol. 2024 Nov 26;82(1):13. doi: 10.1007/s00284-024-03995-0.
Strain CAU 1644 was isolated from sea sand at Ganghwa Island, Republic of Korea. The bacterium is aerobic, Gram-staining negative, yellow-colored, non-motile, catalase-positive, and rod-shaped. Cells of strain CAU 1644 grew at 20-40 °C and pH 6.0-10.0 with 0%-3.0% (w/v) NaCl. The 16S rRNA gene sequences of Altererythrobacter epoxidivorans CGMCC 1.7731 (identity, 98.5%) and A. xiamenensis CGMCC 1.12494 (98.0%) had the highest similarities to strain CAU 1644. Strain CAU 1644 exhibits affiliation with the genus Altererythrobacter by phylogenetic trees based on the 16S rRNA gene and core-genome sequences. The predominant quinone was ubiquinone-10 (Q-10) and the major fatty acids were summed feature 8 (Cω7c and/or Cω6c) and summed feature 3 (Cω7c and/or Cω6c). The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values of strain CAU 1644 were 77.6% and 20.1% with A. epoxidivorans CGMCC 1.7731, respectively, and 77.4% and 21.0% with A. xiamenensis CGMCC 1.12494. The G + C content is 62.5%. Based on phenotypic and genotypic analyses, strain CAU 1644 represents a novel species of the genus Altererythrobacter, for which the name Altererythrobacter arenosus sp. nov., is proposed. The type strain is CAU 1644 (= KCTC 92082 = MCCC 1K07086).
菌株 CAU 1644 分离自韩国江华岛的海沙。该细菌为需氧、革兰氏染色阴性、黄色、非运动、过氧化氢酶阳性和杆状。CAU 1644 菌株的细胞在 20-40°C 和 pH 6.0-10.0 下生长，盐度为 0%-3.0%（w/v）。与 Altererythrobacter epoxidivorans CGMCC 1.7731（同一性，98.5%）和 A. xiamenensis CGMCC 1.12494（98.0%）的 16S rRNA 基因序列具有最高的相似性。基于 16S rRNA 基因和核心基因组序列构建的系统发育树显示，CAU 1644 菌株与 Altererythrobacter 属密切相关。主要醌为泛醌-10（Q-10），主要脂肪酸为总和特征 8（Cω7c 和/或 Cω6c）和总和特征 3（Cω7c 和/或 Cω6c）。CAU 1644 菌株的平均核苷酸同一性（ANI）和数字 DNA-DNA 杂交（dDDH）值分别为 77.6%和 20.1%，与 A. epoxidivorans CGMCC 1.7731 相比，分别为 77.4%和 21.0%，与 A. xiamenensis CGMCC 1.12494 相比。G+C 含量为 62.5%。基于表型和基因型分析，CAU 1644 代表 Altererythrobacter 属的一个新种，命名为 Altererythrobacter arenosus sp. nov. 。模式菌株为 CAU 1644（=KCTC 92082=MCCC 1K07086）。
