Department of Biology, Jeju National University, 102 Jejudaehak-ro, Jeju, 63243, South Korea.
Microorganisms Resources Division, National Institute of Biological Resources, Incheon, 22689, South Korea.
Arch Microbiol. 2022 Nov 5;204(12):691. doi: 10.1007/s00203-022-03305-x.
Strain JK7-1 isolated from marine sediment collected from Jeju Island of South Korea was strictly aerobic, Gram-stain-negative, catalase-positive, oxidase-positive, motile, and rod-shaped bacterium that is circular and convex with white pigment. Strain JK7-1 could grow at 10-30 °C and pH 6-9 with 1-6% (w/v) NaCl. Phylogenetic analysis based on its 16S rRNA gene sequence indicated that strain JK7-1 belonged to genus Sulfitobacter, sharing high sequence similarities with Sulfitobacter undariae W-BA2 (97.90%), Sulfitobacter donghicola KCTC 12864 (97.61%), and Sulfitobacter mediterraneus KCTC 32188 (97.47%). Strain JK7-1 possessed only ubiquinone-10 (Q-10) as a sole respiratory quinone and summed feature 8 as the major fatty acid (81.02%). A dominant polar lipid phosphatidylglycerol was identified in strain JK7-1. Strain JK7-1 had a complete genome of 3,441,674 bp in length with a mean G + C content of 63.96%. Polyphasic and genomic analyses revealed that strain JK7-1 represented a novel species in the genus Sulfitobacter, for which a name of Sulfitobacter albidus sp. nov. was proposed. Its type strain is JK7-1 (= KCTC 72819 = NBRC 114632 = KMM 6821).
从韩国济州岛采集的海洋沉积物中分离得到的菌株 JK7-1 是严格需氧、革兰氏阴性、接触酶阳性、氧化酶阳性、运动和杆状细菌，呈圆形凸起，带有白色色素。菌株 JK7-1 可在 10-30°C 和 pH 6-9 生长，盐度为 1-6%（w/v）。基于 16S rRNA 基因序列的系统发育分析表明，菌株 JK7-1 属于 Sulfitobacter 属，与 Sulfitobacter undariae W-BA2（97.90%）、Sulfitobacter donghicola KCTC 12864（97.61%）和 Sulfitobacter mediterraneus KCTC 32188（97.47%）具有很高的序列相似性。菌株 JK7-1 仅含有泛醌-10（Q-10）作为唯一的呼吸醌，主脂肪酸为 sumFeature 8（81.02%）。在菌株 JK7-1 中鉴定出主要的极性脂质为磷脂酰甘油。菌株 JK7-1 的全基因组大小为 3,441,674bp，G+C 含量平均为 63.96%。多相和基因组分析表明，菌株 JK7-1 代表 Sulfitobacter 属中的一个新种，建议将其命名为 Sulfitobacter albidus sp. nov.。其模式菌株为 JK7-1（=KCTC 72819=NRBC 114632=KMM 6821）。
