Qu Jian-Hang, Yuan Hong-Li
College of Biological Sciences, Key Laboratory of Agro-Microbial Resource and Application, Ministry of Agriculture, China Agricultural University, Beijing 100094, PR China.
Int J Syst Evol Microbiol. 2008 Sep;58(Pt 9):2191-4. doi: 10.1099/ijs.0.65514-0.
Strain NJ-44(T), isolated from sediment of the eutrophic Guanting Reservoir in Beijing (China), was subjected to a taxonomic study using a polyphasic approach. The strain was aerobic, with salmon-pink-pigmented colonies on R2A agar. Cells were single, Gram-negative rods, motile by gliding. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain NJ-44(T) belonged to the phylum Bacteroidetes, with Terrimonas ferruginea ATCC 13524(T) (90.8% similarity), Terrimonas lutea DY(T) (90.5%) and Niabella aurantiaca R2A15-11(T) (89.1%) as its closest relatives. Strain NJ-44(T) was clearly differentiated from members of the genera Terrimonas and Niabella in its DNA G+C content (40.6 mol%) and its major fatty acids, iso-C(15:1) G, iso-C(15:0), anteiso-C(15:0), iso-C(16:0) 3-OH, iso-C(17:0) 3-OH, anteiso-C(15:1) A and iso-C(15:0) 3-OH. It is proposed that strain NJ-44(T) represents a novel genus and species, named Sediminibacterium salmoneum gen. nov., sp. nov. The type strain of Sediminibacterium salmoneum is strain NJ-44(T) (=CGMCC 1.6845(T) =NBRC 103935(T)).
从中国北京富营养化的官厅水库沉积物中分离出的菌株NJ-44(T)，采用多相分类法进行了分类学研究。该菌株为需氧菌，在R2A琼脂上形成鲑鱼粉红色菌落。细胞为单个、革兰氏阴性杆菌，通过滑动运动。基于16S rRNA基因序列的系统发育分析表明，菌株NJ-44(T)属于拟杆菌门，与其亲缘关系最近的是铁锈色地单胞菌ATCC 13524(T)(相似度90.8%)、黄色地单胞菌DY(T)(90.5%)和橙色尼阿贝拉菌R2A15-11(T)(89.1%)。菌株NJ-44(T)在DNA G+C含量(40.6 mol%)及其主要脂肪酸iso-C(15:1)G、iso-C(15:0)、anteiso-C(15:0)、iso-C(16:0) 3-OH、iso-C(17:0) 3-OH、anteiso-C(15:1)A和iso-C(15:0) 3-OH方面与地单胞菌属和尼阿贝拉菌属的成员明显不同。建议将菌株NJ-44(T)代表一个新的属和种，命名为鲑鱼色沉积物杆菌属新属，新种。鲑鱼色沉积物杆菌的模式菌株是菌株NJ-44(T)(=CGMCC 1.6845(T)=NBRC 103935(T))。
