文献类型： 外文期刊
作者： Li, Xiaoyan 1 ; Lu, Hegang 1 ; Wang, Qian 2 ; Yang, Haixia 1 ; Yang, Hongpeng 1 ; Wu, Jiang 1 ; Huang, Haidong 1 ;
作者机构： 1.Tianjin Agr Univ, Tianjin 300384, Peoples R China
2.Tianjin Acad Agr Sci, Tianjin 300112, Peoples R China
关键词： Halomonas binhaiensis; Proteobacteria; taxonomy
期刊名称：INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY （ 影响因子：2.8； 五年影响因子：2.6 ）
ISSN： 1466-5026
年卷期： 2022 年 72 卷 12 期
页码：
收录情况： SCI
摘要： A Gram- stain-negative, aerobic and rod-shaped bacterium, strain Y2R2T, was isolated from a saline-alkali soil sample collected from Binhai New Area, Tianjin, PR China. Growth of strain Y2R2T was observed at 10-45 degrees C (optimum, 30 degrees C), at pH 6.0-11.0 (optimum, pH 9.0) and in the presence of 0-15 % (w/v) NaCl (optimum, 9.0 %). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain Y2R2T was affiliated with the genus Halomonas and showed the highest similarity to Halomonas huangheensis BJGMM-B45T (99.0%) and Halomonas cupida DSM 4740T (98.4%). The digital DNA-DNA hybridization and average nucleotide identity values of 21.0-22.8 % and 73.3-75.7 % with the closely related species H. huangheensis BJGMM-B45T, H. cupida DSM 4740T, H. ventosae AL12T, H. stenophila N12T and H. litopenaei SYSU ZJ2214T were lower than the threshold recom-mended for species discrimination.The major respiratory quinone of strain Y2R2T was Q-9 and the major cellular fatty acids consisted of C16:0, C19: 0 cyclo omega 8c and summed feature 8 (C18:1 omega 7c and/or C18: 1 omega 6c). The DNA G+C content of strain Y2R2T was 57.0 mol%. On the basis of this poly -phasic taxonomic study, strain Y2R2T is considered to represent a novel species of the genus Halomonas, for which the name Halomonas binhaiensis sp. nov. is proposed. The type strain is Y2R2T (=CGMCC 1.16974T=KCTC 72578T).
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