期刊
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
卷 65, 期 -, 页码 838-844出版社
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.000023
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资金
- National Natural Science Foundation of China [31225001]
A bacterial strain designated 6B-8(T) was isolated from crude oil from Daqing oilfield, China. Cells of strain 6B-8(T) were Gram-negative, aerobic, dimorphic and reproduced by means of binary fission. Strain 6B-8(T) could grow at 20-37 degrees C, pH 8-10 and 1-5% (w/v) NaCl. Its genomic DNA G+C content was 62.0 mol%. The predominant cellular fatty acids were C-18:1 omega 7c, C-17:0, C-18:0 and 11-methyl C-18:1 omega 7C and the main hydroxy fatty acids were C-12:0 3-OH and C-12:1 3-OH when grown on marine agar 2216. The major quinone was Q-10 and the major polar lipids were three unidentified glycolipids. Phylogenetic analysis revealed that strain 6B-8(T) was a member of the family Hyphomonadaceae, sharing 99.6 and 99.4% 16S rRNA gene sequence similarity with Glycocaulis abyssi LMG 27140(T) and Glycocaulis albus SLG210-30A1(T), respectively, and less than 94.4% similarity with the type strains of other members of the family Hyphomonadaceae. However, the DNA-DNA relatedness between strain 6B-8(T) and related strains G. abyssi LMG 27140(T) and G. albus SLG210-30A1(T) was 36 +/- 5 and 42 +/- 5 %, respectively. In addition, several phenotypic and genotypic features allowed differentiation of strain 6B-8(T) from G. abyssi LMG 27140(T) and G. albus SLG210-30A1(T). Therefore, strain 6B-8(T) represents a novel species of genus Glycocaulis, for which the name Glycocaulis alkaliphilus sp. nov. is proposed. The type strain is 6B-8(T) (=CGMCC 1.12428(T)=LMG 27410(T)).
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