硫热菌属新属，新种，嗜热硫杆菌，从温泉微生物垫中分离得到的一种硫氧化菌。
Sulfuritortus calidifontis gen. nov., sp. nov., a sulfur oxidizer isolated from a hot spring microbial mat.
作者信息
Kojima Hisaya, Watanabe Miho, Fukui Manabu
机构信息
The Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo 060-0819, Japan.
Postdoctoral Research Fellow of the Japan Society for the Promotion of Science, Chiyoda-ku, Tokyo 102-8471, Japan.
出版信息
Int J Syst Evol Microbiol. 2017 May;67(5):1355-1358. doi: 10.1099/ijsem.0.001813. Epub 2017 May 30.
A novel sulfur-oxidizing autotrophic bacterium, strain J1AT was isolated from a hot spring microbial mat. The cells were Gram-stain-negative, catalase-negative and oxidase-positive. As sole electron donor for chemolithoautotrophic growth, strain J1AT utilized sulfide, thiosulfate, elemental sulfur, and tetrathionate. The G+C content of the genomic DNA was 66 mol%. Major cellular fatty acids (>40 % of total) were C16 : 0 and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The predominant quinone was Q-8. Phylogenetic analysis of the 16S rRNA gene indicated that strain J1AT is a relative of species of the genus Thiobacillus, but shares only 93 % or lower sequence similarities with them. On the basis of its properties, strain J1AT represents a novel species of a new genus, for which the name Sulfuritortus calidifontis gen. nov., sp. nov. is proposed. The type strain of the type species is J1AT (=DSM 103923T=NBRC 112474T).
从温泉微生物垫中分离出一种新型的硫氧化自养细菌，菌株J1AT。该细胞革兰氏染色阴性，过氧化氢酶阴性，氧化酶阳性。作为化能无机自养生长的唯一电子供体，菌株J1AT利用硫化物、硫代硫酸盐、元素硫和连四硫酸盐。基因组DNA的G+C含量为66摩尔%。主要细胞脂肪酸（占总量的>40%）为C16:0和总和特征3（C16:1ω7c和/或C16:1ω6c）。主要醌为Q-8。16S rRNA基因的系统发育分析表明，菌株J1AT是硫杆菌属物种的亲缘种，但与它们的序列相似性仅为93%或更低。基于其特性，菌株J1AT代表一个新属的新物种，为此提出了新属名Sulfuritortus calidifontis gen. nov., sp. nov.。模式种的模式菌株为J1AT（=DSM 103923T=NBRC 112474T）。
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