摘要:从中央蒙古和俄罗斯(Southereasia)的低少量苏打水湖(Soda)(Siberia)中分离出革兰氏阴性,厌氧的光养分,动型,摩托车,棒状杆菌,被指定为B14B,A-7R和A-7Y。他们将层状堆栈作为光合结构,而细菌氯酚a作为主要的光合色素。发现菌株在25–35°C,pH 7.5–10.2(最佳,pH 9.0)和0–8%(w / v)NaCl(最佳,0%)下生长。在存在硫酸盐和碳酸氢盐,醋酸酯,丁酸酯,酵母提取物,乳酸,苹果酸,丙酮酸,琥珀酸和富马酸酯的情况下,促进了生长。DNA G + C含量为62.9–63.0 mol%。While the 16S rRNA gene sequences confirmed that the new strains belonged to the genus Ectothiorhodospira of the Ectothiorhodospiraceae, comparison of the genome nucleotide sequences of strains B14B, A-7R, and A-7Y revealed that the new isolates were remote from all described Ectothiorhodospira species both in dDDH (19.7–38.8%)和ANI(75.0–89.4%)。新菌株还通过缺乏所有其他外硫代刺皮缺乏的一氧化氮还原途径而在遗传上区分。我们建议将分离株分配给新物种,即牙孔lacustris sp。nov。,带有类型菌株B14b t(= DSM 116064 t = KCTC 25542 T = UQM 41491 T)。