The complete genome of the antifungal bacterium Pseudomonas sp. strain MS82

文献类型： 外文期刊

第一作者： Ma, Lin

作者： Ma, Lin;Qu, Shaoxuan;Lin, Jinsheng;Jiang, Ning;Li, Huiping;Hou, Lijuan;Ma, Lin;Ma, Lin;Jia, Jiayuan;Baird, Sonya M.;Lu, Shi-En

作者机构：

关键词： Pseudomonas sp; strain MS82; Complete genome; Antifungal activity; Mushroom cultivation; Secondary metabolites

期刊名称：JOURNAL OF PLANT DISEASES AND PROTECTION （ 影响因子：1.928； 五年影响因子：1.652 ）

ISSN： 1861-3829

年卷期： 2019 年 126 卷 2 期

页码：

收录情况： SCI

摘要： The genomic sequence of Pseudomonas sp. strain MS82 isolated from the rhizosphere of a soybean plant is reported and analyzed in relation to its extensive antifungal activity. Broth media used for production of the antifungal extract from strain MS82 against the mushroom pathogen Trichoderma viride were optimized using the routine plate bioassays. Culture extract of strain 82 in the peptone-K2HPO4-MgSO4 medium (PKM; peptone 20g/L, K2HPO4 1.5g/L, MgSO4 1.5g/L and sterilized water) showed the best antifungal activity with an inhibition rate of 88.69 +/- 3.87% to the fungal pathogen. Control efficacy of the T. viride contamination was investigated in mushroom production compost. The disease severity index of P. ostreatus hyphae infected by T. viride of treatment mixed with MS82 supernatant (38.33 +/- 5.20%) was lower than that of the compost mixed with non-inoculated broth (97.50 +/- 2.50%). The multilocus sequence analysis, containing four partial sequences from the gyrB, rpoB, recA and rpoD, suggests that strain MS82 is a Pseudomonas strain. The strain MS82 genome consists of a circular chromosome of 6,207,556bp that was predicted to encode 5401 proteins and 131 RNA genes. Genome analysis revealed the presence of the gene clusters for biosynthesis of antifungal compounds, such as phenazine, pyocyanin, pyoverdine, volatile HCN and cyclic lipopeptides (arthrofactin). Genome analysis presented in the report will provide insights into development of biological control for fungal contamination in mushroom cultivation.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序