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海生嗜冷杆菌新种及沙地嗜冷杆菌新种,从日本海沿海海冰和沉积物中分离得到。

Psychrobacter maritimus sp. nov. and Psychrobacter arenosus sp. nov., isolated from coastal sea ice and sediments of the Sea of Japan.

作者信息

Romanenko Lyudmila A, Lysenko Anatoly M, Rohde Manfred, Mikhailov Valery V, Stackebrandt Erko

机构信息

Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, 690022 Vladivostok, Prospekt 100 Let Vladivostoku, 159, Russia.

Institute of Microbiology, Russian Academy of Sciences, 117811 Moscow, Russia.

出版信息

Int J Syst Evol Microbiol. 2004 Sep;54(Pt 5):1741-1745. doi: 10.1099/ijs.0.63096-0.

Abstract

Four strains of Gram-negative, aerobic, psychrotolerant, non-motile, non-pigmented bacteria were isolated from coastal sea-ice and sediment samples. These strains displayed the general chemotaxonomic and phenotypic features of members of the genus Psychrobacter. 16S rRNA gene sequencing positioned the three isolates KMM 3646T, KMM 3643 and KMM 3645 and isolate KMM 3659T in two distinct lineages within the genus Psychrobacter, displaying less than 98.5 % sequence similarity to the type strains of other Psychrobacter species. Genomic distinctness was supported by phenotypic differences in growth temperatures, salinity range for growth and metabolic properties. Based on a combination of phenotypic and biochemical characteristics and phylogenetic position, it is proposed that the members of these two distinct lineages represent two novel species, for which the names Psychrobacter maritimus sp. nov. (type strain Pi2-20T = KMM 3646T = DSM 15387T) and Psychrobacter arenosus sp. nov. (type strain R7T = KMM 3659T = DSM 15389T) are proposed.

摘要

从沿海海冰和沉积物样本中分离出四株革兰氏阴性、需氧、耐冷、不运动、无色素的细菌。这些菌株表现出嗜冷杆菌属成员的一般化学分类和表型特征。16S rRNA基因测序将三株分离株KMM 3646T、KMM 3643和KMM 3645以及分离株KMM 3659T定位在嗜冷杆菌属内的两个不同谱系中,与其他嗜冷杆菌属模式菌株的序列相似性低于98.5%。生长温度、生长盐度范围和代谢特性的表型差异支持了基因组的独特性。基于表型、生化特征和系统发育位置的综合分析,建议将这两个不同谱系的成员代表两个新物种,分别命名为海生嗜冷杆菌新种(模式菌株Pi2-20T = KMM 3646T = DSM 15387T)和沙生嗜冷杆菌新种(模式菌株R7T = KMM 3659T = DSM 15389T)。

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