数字农科院2.0

Isolation And Identification Of A B.acillus Subtilis Hz-72 Exhibiting B iocontrol Activity Against Flax Seedling Blight

文献类型: 外文期刊

作者: Tan, TM; Zhu, JX; Shen, AR; Li, JL; Yu, YT; Zhang, MJ; Zhao, MR; Li, ZM; Chen, J; Gao, CS; Cheng, Y; Guo, LT; Yan, L; Sun, XP; Zeng, LB; Yan, Z

作者机构:

关键词: Rhizosphere bacteria; Bacillus subtilis; Flax; Rhizoctonia solani; Biocontrol

期刊名称: EUROPEAN JOURNAL OF PLANT PATHOLOGY

ISSN: 0929-1873

年卷期: 2019 年 153 卷 3 期

页码:

收录情况: JCR(2021版)

摘要: Seedling blight caused by Rhizoctonia solani is a serious soil-borne disease on flax. In this study, we isolated a bacterial strain HZ-72 from the rhizosphere soil of flax with obvious inhibitory effect on R. solani and other six plant fungal pathogens. Strain HZ-72 was identified as Bacillus subtilis based on morphological, physiological, biochemical characteristics and 16S rDNA sequence analysis. In greenhouse experiments, the control efficiency of strain HZ-72 reached 83.34%. Additionally, in vitro assays indicated that cell wall-degrading enzymes such as protease and cellulase, volatile compounds, proteins and lipopeptides produced by strain HZ-72 all contributed to its antagonistic activity against R. solani. To our knowledge, this is the first report on the use of a rhizosphere B. subtilis strain as a biocontrol agent for the biocontrol of flax seedling blight caused by R. solani.

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