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Shouchella tritolerans sp. nov., a facultative anaerobic bacterium isolated from marine sediments

文献类型: 外文期刊

作者: Xie, Cheng-Jie 1 ; Yang, Shang 1 ; Han, Shuang 1 ; Liu, Guo-Hong 3 ; Zhou, Shun-Gui 1 ;

作者机构: 1.Fujian Agr & Forestry Univ, Coll Resources & Environm, Fujian Prov Key Lab Soil Environm Hlth & Regulat, Fuzhou 350002, Fujian, Peoples R China

2.Guangdong Lab Lingnan Modern Agr, Guangzhou 510642, Guangdong, Peoples R China

3.Fujian Acad Agr Sci, Agr Bioresources Res Inst, Fuzhou 350003, Fujian, Peoples R China

关键词: Alkaliphiles; Halophiles; Thermophiles; Shouchella tritolerans

期刊名称:ARCHIVES OF MICROBIOLOGY ( 2022影响因子:2.8; 五年影响因子:2.8 )

ISSN: 0302-8933

年卷期: 2023 年 205 卷 4 期

页码:

收录情况: SCI

摘要: An alkali, salt, and thermo-tolerant strain designated FJAT-45399(T) was isolated from marine sediment in Fujian Province, China. Strain FJAT-45399(T) was Gram-stain-positive, rod-shaped, and facultatively aerobic. It shared high 16S rRNA gene sequence similarities with the members of the genus Shouchella. Further, the phylogenetic and phylogenomic analysis also suggested strain FJAT-45399(T) clustered with the members of the genus Shouchella. Growth of strain FJAT-45399(T) was observed at 15-55 degrees C (optimum 45-50 degrees C), pH 7.0-13.0 (optimum 9.0) and 0-15% (w/v) NaCl (optimum 2%). It contained MK-7 as the menaquinone. The polar lipids were diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and an unidentified glycolipid (UGL) and lipid (UL). The major fatty acids (> 10%) were C-16:0 (22.8%), iso-C-15:0 (21.3%), and anteiso-C-15:0 (14.0%). The genomic DNA G + C content was 44.5%. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between strain FJAT-45399(T) and the most closely related type strain Shouchella clausii DSM 8716(T) (ANI 94.1% and dDDH 55.4%) were both below the cut-off level for species delineation. Based on the above results, strain FJAT-45399(T) represents a novel species of the genus Shouchella, for which the name Shouchella tritolerans sp. nov., is proposed. The type strain is FJAT-45399(T) (= GDMCC 1.3098(T) = JCM 35613(T)).

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