Yurkov V, Stackebrandt E, Holmes A, Fuerst J A, Hugenholtz P, Golecki J, Gad'on N, Gorlenko V M, Kompantseva E I, Drews G
Institute of Biology, Albert Ludwigs University, Freiburg, Germany.
Int J Syst Bacteriol. 1994 Jul;44(3):427-34. doi: 10.1099/00207713-44-3-427.
We analyzed the 16S ribosomal DNAs of three obligately aerobic, bacteriochlorophyll a-containing bacteria, "Roseococcus thiosulfatophilus," "Erythromicrobium ramosum," and new isolate T4T (T = type strain), which was obtained from a marine cyanobacterial mat. "Roseococcus thiosulfatophilus" is a member of the alpha-1 subclass of the Proteobacteria and is moderately related to Rhodopila globiformis, Thiobacillus acidophilus, and Acidiphilium cryptum (level of sequence similarity, 90%). "Erythromicrobium ramosum" and isolate T4T are closely related to Erythrobacter longus and Porphyrobacter neustonensis (level of sequence similarity, 95%). These organisms are members of the alpha-4 subclass of the Proteobacteria. Strain T4T is a motile, red or orange bacterium. The major carotenoids are bacteriorubixanthinal and erythroxanthin sulfate. In vivo measurements revealed bacteriochlorophyll absorption maxima at 377, 590, 800, and 868 nm. Strain T4T grows in the presence of 5 to 96/1000 salinity and uses glucose, fructose, acetate, pyruvate, glutamate, succinate, and lactate as substrates. On the basis of its distinct phylogenetic position and phenotypic characteristics which are different from those of Erythrobacter longus, we propose that strain T4T should be placed in a new species of the genus Erythrobacter, Erythrobacter litoralis. The descriptions of "Roseococcus thiosulfatophilus" and "Erythromicrobium ramosum" are emended.
我们分析了三种专性需氧、含细菌叶绿素a的细菌的16S核糖体DNA，分别是“嗜硫玫瑰球菌”、“分枝红微菌”以及从海洋蓝藻席中获得的新分离株T4T（T代表模式菌株）。“嗜硫玫瑰球菌”是变形菌门α-1亚类的成员，与球形红假单胞菌、嗜酸硫杆菌和嗜酸隐杆酵母有中等程度的亲缘关系（序列相似性水平为90%）。“分枝红微菌”和分离株T4T与长红杆菌和海洋紫色杆菌密切相关（序列相似性水平为95%）。这些微生物是变形菌门α-4亚类的成员。菌株T4T是一种可运动的红色或橙色细菌。主要类胡萝卜素是细菌红素叶黄素和硫酸赤藓黄素。体内测量显示细菌叶绿素的吸收峰在377、590、800和868纳米处。菌株T4T在盐度为5至96/1000的条件下生长，并利用葡萄糖、果糖、乙酸盐、丙酮酸盐、谷氨酸盐、琥珀酸盐和乳酸盐作为底物。基于其独特的系统发育位置和与长红杆菌不同的表型特征，我们建议将菌株T4T归入红杆菌属的一个新物种，即滨海红杆菌。对“嗜硫玫瑰球菌”和“分枝红微菌”的描述进行了修订。
