生物
16S核糖体RNA
嗜热菌
肽聚糖
拉伤
二氨基酸
微生物学
梭菌
系统发育树
细菌
磷脂酰甘油
二氨基二甲酸
梭菌目
生物化学
基因
遗传学
磷脂
磷脂酰胆碱
基因序列
解剖
膜
作者
Ai-Ping Lv,Yu-Zhen Ming,Ze-Tao Liu,Yu-Ting Ouyang,Meng-Meng Li,Zheng-Han Lian,Jian-Yu Jiao,Ting-Ting She,Lan Liu,Wen-Jun Li
标识
DOI:10.1099/ijsem.0.005684
摘要
A novel anaerobic bacterium, designated SYSU GA19001 T , was isolated from a hot spring sediment sample. Phylogenetic analysis indicated that the isolate belongs to the genus Clostridium , and showed the highest sequence similarity to Clostridium swellfunianum CICC 10730 T (96.63 %) and Clostridium prolinivorans PYR-10 T (96.11 %). Cells of strain SYSU GA19001 T were Gram-stain-positive, spore-forming, rod-shaped (0.6–0.8×2.6–4.0 µm) and motile. Growth was observed at pH 5.0–9.0 (optimum, pH 7.0), 37–55 °C (optimum, 45 °C) and in NaCl concentrations of 0–2.0 % (optimum, 0 %). The genomic DNA G+C content was 31.62 %. The major cellular fatty acids of strain SYSU GA19001 T were C 14 : 0 , iso-C 15 : 0 , C 16 : 0 and summed feature 8. The prominent polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol. Meso -diaminopimelic acid was the diamino acid in peptidoglycan. Based on the results of phylogenetic, chemotaxonomic and phenotypic analyses, strain SYSU GA19001 T represents a novel species of the genus Clostridium , for which the name Clostridium caldaquaticum sp. nov. is proposed. The type strain of the proposed novel species is SYSU GA19001 T (=NBRC 115040 T = CGMCC 1.17864 T ).
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