复合微生物剂通过殖民根表面和调节根球土壤微生物群体来控制番茄细菌枯
Shuangxi Zhu1, Xiaojian Chang2, Nana Liu1
1Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, Key Laboratory of Textile Dyeing Wastewater Treatment Universities of Shaanxi Province, School of Environmental and Chemical Engineering, Engineering Research Center of Biological Resources Development and Pollution Control Universities of Shaanxi Province, Xi'an Polytechnic University, Xi'an, China.
Frontiers in microbiology
|May 15, 2025
概括
一种由Enterobacter hormaechei Rs-5和Bacillus subtilis SL-44组成的复合微生物剂 (EB) 通过减少Ralstonia solanacearum和改善土壤健康,有效地管理番茄细菌枯. EB殖民番茄根,增强植物生长和有益的微生物群落.
科学领域:
- 农业微生物学 农业微生物学
- 植物病理学 植物病理学
- 土壤科学 土壤科学
背景情况:
- 由Ralstonia solanacearum引起的细菌,严重影响番茄幼苗的生长.
- 生物控制微生物提供了一种可持续的方法来管理番茄细菌枯.
研究的目的:
- 为了研究一个复合微生物剂 (EB) 的行为,包括红根球中的Enterobacter hormaechei Rs-5和Bacillus subtilis SL-44.
- 评估EB对土壤微生物群落结构和番茄植物生长的影响.
主要方法:
- 盘面对抗和实验评估EB对抗Ralstonia solanacearum和细菌枯的疗效.
- 绝对定量PCR (AQ-PCR) 和扫描电子显微镜分析EB迁移,殖民和生物膜形成.
- 高通量测序以确定EB对根球微生物群落的影响.根球微生物群落.
主要成果:
- EB有效地殖民番茄根,形成生物膜,并向根排泄物表现出化学反应.
- EB显著降低了细菌枯的发生率,从77.78%降至22.22%,并改善了番茄苗的生物质和土壤特性.
- EB的应用增加了有益细菌的相对丰富性 (例如,Massilia,Pseudomonas,Bacillus,Enterobacter) 和改善了真菌的多样性.
结论:
- EB通过减少根球中的Ralstonia solanacearum直接控制番茄细菌枯.
- EB通过向根部迁移,有效殖民并调节土壤微生物社区结构来间接管理疾病.
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