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Alteromonas portus sp. nov., an alginate lyase-excreting marine bacterium

文献类型： 外文期刊

作者： Huang, Huiqin 1 ; Mo, Kunlian 1 ; Li, Shuang 1 ; Sun Dongmei 3 ; Jun Zhu 1 ; Zou, Xiaoxiao 1 ; Hu, Yonghua 1 ; Bao, Shixi 1 ;

作者机构： 1.CATAS, Inst Trop Biosci & Biotechnol, Hainan Acad Trop Agr Resources, Haikou 571101, Hainan, Peoples R China

2.Hainan Prov Key Lab Funct Component Res & Utiliza, Haikou 571101, Hainan, Peoples R China

3.Heilongjiang Bayi Agr Univ, Coll Life Sci & Technol, Daqing 163000, Hainan, Peoples R China

关键词： Alteromonas portus sp. nov.; polyphasic taxonomy; 16S rRNA gene; alginate lyase

期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.747； 五年影响因子：2.889 ）

ISSN： 1466-5026

年卷期： 2020 年 70 卷 3 期

页码：

收录情况： SCI

摘要： An alginate lyase-excreting bacterium, designated strain HB161718(T), was isolated from coastal sand collected from Tanmen Port in Hainan, PR China. Cells were Gram-stain-negative rods and motile with a single polar flagellum. Its major isoprenoid quinone was ubiquinone 8 (Q-8), and its cellular fatty acid profile mainly consisted of C-1(6:1)omega 7c and/or C-16:1 omega 6c, C-18:1 omega 6c and/or C-18(:1) omega 7c. C-16:0 omega 7c, C-16:0, C-17:0 10-methyl and C-16(:0) N alcohol. The G+C content of the genomic DNA was 44.1 mol%. 165 rRNA gene sequence analysis suggested that strain HB161718(T) belonged to the genus Alteromonas, sharing 99.5, 99.4, 99.2, 98.9 and 98.5% sequence similarities to its closest relatives, Alteromonas macleodii JCM 20772(T), Alteromonas gracilis 9a2(T), Alteromonas australica H17(T), Alteromonas marina SW-47(T) and Alteromonas mediterranea DET, respectively. The low values of DNA-DNA hybridization and averagenucleotide identity showed that it formed a distinct genomic species. The combined phenotypic and molecular features supported the conclusion that strain HB161718(T) represents a novel species of the genus Alteromonas, for which the name Alteromonas portus sp. nov. is proposed. The type strain is HB161718(T) (=CGMCC 1.13585(T)=JCM 32687(T)).

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