Isolation and genomics of ten novel Shewanella species from mangrove wetland
文献类型: 外文期刊
第一作者: Liu, Guo-Hong
作者: Liu, Guo-Hong;Yang, Shang;Han, Shuang;Xie, Cheng-Jie;Rensing, Christopher;Zhou, Shun- Gui;Rao, Manik Prabhu Narsing;Alwathnani, Hend A.;Herzberg, Martin
作者机构:
关键词: novel Shewanella species; genome; based taxonomy; mangrove wetland; habitat adaptability; metabolic pathways.
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: 2023 年 73 卷 6 期
页码:
收录情况: SCI
摘要: Mangrove bacteria largely compose the microbial community of the coastal ecosystem and are directly associated with nutrient cycling. In the present study, 12 Gram- negative and motile strains were isolated from a mangrove wetland in Zhangzhou, China. Pairwise comparisons (based on 16S rRNA gene sequences) and phylogenetic analysis indicated that these 12 strains belong to the genus Shewanella. The 16S rRNA gene sequence similarities among the 12 Shewanella strains and their related type strains ranged from 98.8 to 99.8 %, but they still could not be considered as known species. The digital DNA-DNA hybridization (dDDH) and average nucleotide identity (ANI) values between the 12 strains and their related type strains were below the cut- off values (ANI 95-96% and dDDH 70 %) for prokaryotic species delineation. The DNA G+C contents of the present study strains ranged from 44.4 to 53.8 %. The predominant menaquinone present in all strains was MK- 7. The present study strains (except FJAT53532T) also contained ubiquinones (Q- 8 and Q- 7). The polar lipid phosphatidylglycerol and fatty acid iso- C15: 0 was noticed in all strains. Based on phenotypic, chemotaxonomic, phylogenetic and genomic comparisons, we propose that these 12 strains represent 10 novel species within the genus Shewanella, with the names Shewanella psychrotolerans sp. nov. (FJAT- 53749T=GDMCC 1.2398T=KCTC 82649T), Shewanella zhangzhouensis sp. nov. (FJAT- 52072T=MCCC 1K05363T=KCTC 82447T), Shewanella rhizosphaerae sp. nov. (FJAT- 53764T=GDMCC 1.2349T=KCTC 82648T), Shewanella mesophila sp. nov. (FJAT- 53870T=GDMCC 1.2346T= KCTC 82640T), Shewanella halotolerans sp. nov. (FJAT- 53555T=GDMCC 1.2344T=KCTC 82645T), Shewanella aegiceratis sp. nov. (FJAT-53532T=GDMCC 1.2343T=KCTC 82644T), Shewanella alkalitolerans sp. nov. (FJAT- 54031T=GDMCC 1.2347T=KCTC 82642T), Shewanella spartinae sp. nov. (FJAT- 53681T=GDMCC 1.2345T=KCTC 82641T), Shewanella acanthi sp. nov. (FJAT- 51860T=GDMCC 1.2342T=KCTC 82650T) and Shewanella mangrovisoli sp. nov. (FJAT- 51754T=GDMCC 1.2341T= KCTC 82647T).
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