Deefgea salmonis sp. nov., isolated from gills of rainbow trout (Oncorhynchus mykiss)

文献类型： 外文期刊

第一作者： Chen, Mei-Qun

作者： Chen, Mei-Qun;Zhang, Chi;Zhou, Jian-She;Tashi, Lhamo;Wang, Wan-Liang;Tian, Yun;Pan, Hu;Pan, Hu

作者机构：

关键词： Deefgea; Oncorhynchus mykiss; Comparative genomics; Tibet

期刊名称：ARCHIVES OF MICROBIOLOGY （ 影响因子：2.667； 五年影响因子：2.729 ）

ISSN： 0302-8933

年卷期： 2022 年 204 卷 7 期

页码：

收录情况： SCI

摘要： A Gram-stain-negative, milky white, aerobic, rod-shaped bacterium named strain H3-26(T) was isolated from gills of Oncorhynchus mykiss in Lhasa, Tibet Autonomous Region, PR China. Strain H3-26(T) grew at 4-30 degrees C and pH 5.0-11.0 (optimum, 25 degrees C and pH 7.0) with 0-1% (w/v) NaCl (optimum, 0%). The 16S rRNA gene sequence of strain H3-26(T) showed the highest similarity to Deefgea rivuli WB 3.4-79(T) (98.42%), followed by Deefgea chitinilytica Nsw-4(T) (96.91%). Phylogenetic analysis based on 16S rRNA genes indicated that strain H3-26(T) was a new member of the genus Deefgea. The digital DNA-DNA hybridization and average nucleotide identity values between the genome sequence of strain H3-26(T) and Deefgea spp. were 21.2-21.9% and 76.3-77.4%, respectively. The genomic DNA G+C content of strain H3-26(T) was 48.74%. The predominant fatty acids were C-12:0, C-14:0, C-16:0 and C-16:1 omega 7c. Based on phenotypic, phylogenetic, and genotypic data, strain H3-26(T) is considered to represent a novel species of the genus Deefgea, for which the name Deefgea salmonis sp. nov. is proposed. The type strain is H3-26(T) (= JCM 35050(T) = CICC 25103(T)).

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