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Neobacillus sedimentimangrovi sp. nov., a Thermophilic Bacterium Isolated from Mangrove Sediment

文献类型： 外文期刊

作者： Tang, Rong 1 ; Zhang, Qi 1 ; Rao, Manik Prabhu Narsing 3 ; Liu, Guo-Hong 2 ; Che, Jian-Mei 2 ; Lei, Min 2 ; Liu, Bo 2 ; L 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, Fuzhou 350002, Fujian, Peoples R China

2.Fujian Acad Agr Sci, Agr Bioresource Inst, Fuzhou 350003, Fujian, Peoples R China

3.Sun Yat Sen Univ, Sch Life Sci, State Key Lab Biocontrol, Guangdong Prov Key Lab Plant Resources, Guangzhou 10275, Peoples R China

4.Sun Yat Sen Univ, Sch Life Sci, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Guangzhou 10275, Peoples R China

期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.188； 五年影响因子：2.197 ）

ISSN： 0343-8651

年卷期： 2021 年 78 卷 3 期

页码：

收录情况： SCI

摘要： Two Gram-stain positive, rod-shaped, endospore-forming, aerobic, thermophilic strains, designated FJAT-2464(T) and FJAT-52740, were isolated from the sediment collected from Zhangjiang Estuary Mangrove National Nature Reserve in Fujian Province, China. The 16S rRNA gene sequence similarity between strains FJAT-2464(T) and FJAT-52740 was 100%. The result suggests that strains FJAT-2464(T) and FJAT-52740 belong to the same genome species, hence only FJAT-2464(T) was considered for further analysis. Strain FJAT-2464(T) showed the highest 16S rRNA gene sequence similarities to the type strains of Neobacillus thermocopriae SgZ-7(T) (99.9%), Neobacillus cucumis AP-6(T) (97.6%) and Neobacillus drentensis LMG 21831(T) (97.5%). Growth was observed at 25-65 degrees C (optimum 60 degrees C), pH 7.0-8.0 (optimum 8.0) with NaCl tolerance up to 1.0% (w/v) (optimum without NaCl %). The cell-wall peptidoglycan contained meso-diaminopimelic acid and MK-7 was the only respiratory quinone. The major fatty acids were iso-C-15:0 and anteiso-C-15:0. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, unidentified aminophospholipid and unidentified lipids. The average nucleotide identity and digital DNA-DNA hybridization values between strain FJAT-2464(T) and the most closely related strain N. thermocopriae SgZ-7(T) was below the threshold value for species delineation. Based on the above results, strain FJAT-2464(T) represents a novel species of the genus Neobacillus, for which the name Neobacillus sedimentimangrovi sp. nov. is proposed. The type strain is FJAT-2464(T) (= MCCC 1K04406(T) = KCTC 43264(T)).

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