南海海泥杆菌新种（Marinobacter segnicrescens sp. nov.），一种从中国南海底栖沉积物中分离出的中度嗜盐菌。
Marinobacter segnicrescens sp. nov., a moderate halophile isolated from benthic sediment of the South China Sea.
作者信息
Guo Bin, Gu Jun, Ye Yu-Guang, Tang Yue-Qin, Kida Kenji, Wu Xiao-Lei
机构信息
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, P. R. China.
Qingdao Institute of Marine Geology, Qingdao 266071, P. R. China.
出版信息
Int J Syst Evol Microbiol. 2007 Sep;57(Pt 9):1970-1974. doi: 10.1099/ijs.0.65030-0.
A Gram-negative, motile, non-spore-forming and moderately halophilic ellipsoid-shaped marine coccobacillus, designated strain SS011B1-4(T), was isolated from benthic sediment of the South China Sea. Optimum growth occurred at 30-37 degrees C, pH 7.5-8.0 and 4-8 % (w/v) NaCl. Strain SS011B1-4(T) utilized a variety of organic substrates as sole carbon sources, but did not utilize toluene, n-tetradecane or crude oil. Strain SS011B1-4(T) had ubiquinone-9 as the major respiratory quinone and C(18 : 1)omega9c, C(16 : 0) and C(12 : 0) 3-OH as the predominant fatty acids. The genomic DNA G+C content was 62.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SS011B1-4(T) belonged to the genus Marinobacter of the Gammaproteobacteria. The results of the phenotypic, phylogenetic and genomic analyses revealed that strain SS011B1-4(T) represents a novel species of the genus Marinobacter. The name Marinobacter segnicrescens sp. nov. is therefore proposed, with strain SS011B1-4(T) (=LMG 23928(T)=CGMCC 1.6489(T)) as the type strain.
从中国南海的底栖沉积物中分离出一株革兰氏阴性、具运动性、不产芽孢且嗜盐适度的椭圆形海洋球杆菌，命名为菌株SS011B1-4(T)。该菌株在30-37℃、pH 7.5-8.0和4-8%（w/v）NaCl条件下生长最佳。菌株SS011B1-4(T)能利用多种有机底物作为唯一碳源，但不能利用甲苯、正十四烷或原油。菌株SS011B1-4(T)以泛醌-9作为主要呼吸醌，以C(18 : 1)ω9c、C(16 : 0)和C(12 : 0) 3-OH作为主要脂肪酸。基因组DNA的G+C含量为62.2 mol%。基于16S rRNA基因序列的系统发育分析表明，菌株SS011B1-4(T)属于γ-变形菌纲的海杆菌属。表型、系统发育和基因组分析结果表明，菌株SS011B1-4(T)代表海杆菌属的一个新物种。因此，提出新物种海杆菌迟缓生长菌（Marinobacter segnicrescens sp. nov.），以菌株SS011B1-4(T)（=LMG 23928(T)=CGMCC 1.6489(T)）作为模式菌株。
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