Paenibacillus mesotrionivorans sp. nov., a Mesotrione-Degrading Strain Isolated from Soil

文献类型： 外文期刊

第一作者： Song, Ye

作者： Song, Ye;Wu, Yan;Ruan, Luyao;Wan, Minglai;Liu, Bin;He, Jian;Chen, Leyao;Wan, Minglai;Zhang, Baolong;He, Jian;He, Jian

作者机构：

期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.6； 五年影响因子：2.6 ）

ISSN： 0343-8651

年卷期： 2025 年 82 卷 3 期

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收录情况： SCI

摘要： A Gram-stain-positive, facultatively anaerobic, motile with peritrichous flagella, and rod-shaped bacterium, designated as P15T, was isolated from an agricultural soil sample collected in Jiangxi Province, PR China. Strain P15T completely degraded 100 mg/L of mesotrione, a herbicide, within 48 h of incubation. Strain P15T grew at 15-42 degrees C (optimum 30 degrees C), pH 6.0-9.0 (optimum 7.0), and 0-4.0% (w/v) NaCl (optimum 1.0%). Strain P15T exhibited less than 93.3% 16S rRNA gene sequence similarity with type strains of genus Paenibacillus. In the phylogenetic tree based on 16S rRNA gene sequences, strain P15T was clustered in genus Paenibacillus and formed a subclade with P. cavernae C4-5T, P. contaminans CKOBP-6T, and P. doosanensis CAU 1005T. The major cellular fatty acids (>= 5% of the total) were anteiso-C15:0, iso-C16:0, C14:0, C16:0, and iso-C14:0. The predominant respiratory quinone was MK-7. The major polar lipids were diphosphatidylglycerol, phosphatidylglycero, phosphatidylethanolamine, one unidentified glycolipid, one unidentified aminophosphoglycolipid, two unidentified aminophospholipids, two unidentified phospholipid, and two unidentified lipids. The diagnostic diamino acid of the peptidoglycan was meso-diaminopimelic acid. The DNA G + C content was 53.9 mol%. Based on the phylogenetic, phenotypic, and chemotaxonomic characteristics, strain P15T represents a novel species within genus Paenibacillus, for which the name Paenibacillus mesotrionivorans sp. nov is proposed, with strain P15T (= MCCC 1K09191T = KCTC 43705T) as the type strain.

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