Hosoya Shoichi, Jang Jae-Hyuk, Yasumoto-Hirose Mina, Matsuda Satoru, Kasai Hiroaki
Marine Biotechnology Institute, 3-75-1 Heita, Kamaishi, Iwate 026-0001, Japan.
Int J Syst Evol Microbiol. 2009 Jun;59(Pt 6):1262-6. doi: 10.1099/ijs.0.003244-0.
Two heterotrophic, agarolytic bacteria were isolated from marine environments. A 16S rRNA gene sequence analysis showed the isolates (designated strains J42-3A(T) and 04OZ-AS15-7A) to be positioned in a separate lineage within the genus Psychromonas. Members of the genus Psychromonas are recognized as being psychrophilic or psychrotolerant, whereas none of the currently established Psychromonas species is known to be agarolytic. The DNA G+C contents of the isolates were about 42 mol% and the predominant cellular fatty acids were 16 : 1omega7c and 16 : 0. Based on the results of the phylogenetic and phenotypic analyses and DNA-DNA hybridization data, the isolates represent a novel species, for which the name Psychromonas agarivorans sp. nov. is proposed. The type strain is J42-3A(T) (=NBRC 104585(T)=KCTC 22285(T)).
从海洋环境中分离出两株异养、能分解琼脂的细菌。16S rRNA基因序列分析表明，分离菌株（命名为J42-3A(T)和04OZ-AS15-7A）位于嗜冷单胞菌属内一个独立的谱系中。嗜冷单胞菌属成员被认为是嗜冷或耐冷的，而目前已确定的嗜冷单胞菌物种中没有已知能分解琼脂的。分离菌株的DNA G+C含量约为42 mol%，主要的细胞脂肪酸为16 : 1ω7c和16 : 0。基于系统发育和表型分析结果以及DNA-DNA杂交数据，这些分离菌株代表一个新物种，为此提出名为嗜冷琼脂分解单胞菌（Psychromonas agarivorans sp. nov.）的名称。模式菌株为J42-3A(T)（=NBRC 104585(T)=KCTC 22285(T)）。
