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- Title
内生细菌ZN-S10的鉴定及其对番茄青枯病菌的抑菌作用.
- Authors
王晓楠; 冯晓晓; 施斌; 陈恩磊; 陈梦丽; 郑永利; 吴慧明
- Abstract
In order to identify an endophytic bacterium from tomato root and its antibacterial effect, the antagonistic activity of tomato endophytic bacteria against different pathogens was tested, providing insights for the biological control of common bacterial diseases. Endophytic bacteria were isolated from tomato roots and identified by morphological, fatty acid, physiological characteristics determination as well as a dual-gene system of gyrA and rpoB phylogenetic trees. The antagonistic effect of endophytic bacteria on five common plant pathogenic bacteria was tested using the plate method, and the efficacy of the bacterium against tomato bacterial wilt disease was evaluated using the pot culture experiment. The strain ZN-S10 was identified as Bacillus velezensis. The antibacterial assay showed that B.velezensis ZN-S10 exhibited different degrees of bacteroistatic activity against Pseudomonas viridifiava, Dickeya dadantii, Erwinia carotovora, Ralstonia solanacearum and Xanthomonas campestris. The greenhouse pot culture experiment demonstrated that the control effect of B.velezensis ZN-S10 on tomato bacterial wilt was 57.14%, which was not significantly different from that of 3% Zhongshengmycin WP, and could effectively reduce the development of tomato bacterial wilt. These research findings provided a theoretical basis for the effective use utilization of endophytic bacteria in the control of common bacterial diseases and highlighted the promising application prospects of B. velezensis ZN-S10 in the management of bacterial diseases in tomatoes.
- Publication
Acta Agriculturae Zhejiangensis, 2023, Vol 35, Issue 11, p2636
- ISSN
1004-1524
- Publication type
Article
- DOI
10.3969/j.issn.1004-1524.20230864