Department of Biology, College of Life Science and Natural Resources, Sunchon National University, Suncheon 540-742, Republic of Korea.
Int J Syst Evol Microbiol. 2012 Aug;62(Pt 8):1974-1979. doi: 10.1099/ijs.0.032904-0. Epub 2011 Oct 14.
An orange, rod-shaped, gliding bacterium, designated strain PSC33(T), was isolated from the gut microflora of a mussel collected from Gwangyang Bay, South Sea (Republic of Korea). Cells were Gram-reaction-negative, strictly aerobic, and catalase- and oxidase-positive. The major fatty acids were iso-C(15:0), iso-C(17:0) 3-OH, iso-C(15:1) G, C(15:0) 3-OH and iso-C(17:1)ω9c. The only isoprenoid quinone was menaquinone-6 (MK-6). The DNA G+C content of strain PSC33(T) was 37.9 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain PSC33(T) formed an evolutionary lineage within the radiation encompassing members of the genus Aquimarina with Aquimarina macrocephali JAMB N27(T) as its nearest neighbour (96.3% sequence similarity). A number of phenotypic characteristics distinguished strain PSC33(T) from recognized members of the genus Aquimarina. On the basis of the data presented in this study, strain PSC33(T) is considered to represent a novel species of the genus Aquimarina, for which the name Aquimarina mytili sp. nov. is proposed. The type strain is PSC33(T) ( = KCTC 23302(T) = JCM 17454(T)). An emended description of A. macrocephali is also provided.
一株橙色、杆状、滑行的细菌，被指定为PSC33(T) 菌株，从韩国南海光阳湾采集的贻贝肠道微生物群中分离得到。细胞革兰氏反应阴性，严格需氧，过氧化氢酶和氧化酶阳性。主要脂肪酸为 iso-C(15:0)、iso-C(17:0) 3-OH、iso-C(15:1) G、C(15:0) 3-OH 和 iso-C(17:1)ω9c。唯一的类异戊二烯醌是甲萘醌-6 (MK-6)。PSC33(T) 菌株的 DNA G+C 含量为 37.9 mol%。基于 16S rRNA 基因序列构建的系统发育树显示，PSC33(T) 菌株与 Aquimarina 属内包含 Aquimarina macrocephali JAMB N27(T) 的分支辐射成员形成一个进化枝，与 Aquimarina macrocephali JAMB N27(T) 的亲缘关系最近（序列相似性为 96.3%）。一些表型特征将 PSC33(T) 菌株与公认的 Aquimarina 属成员区分开来。根据本研究提供的数据，PSC33(T) 菌株代表 Aquimarina 属的一个新种，建议将其命名为 Aquimarina mytili sp. nov.。模式菌株为 PSC33(T)（ = KCTC 23302(T) = JCM 17454(T)）。还提供了对 A. macrocephali 的修订描述。
