王艺茹,潘培培,沈虎生,张林林,王润东,何梦菡,申顺善

• 1:河南农业大学植物保护学院

摘要(Abstract)：

【目的】探究HP8-1在番茄上的生物防治潜力，为番茄疫霉根腐病的生物防治提供优良生物防治资源。【方法】通过形态学观察、生理生化特性检测并结合16S rRNA序列分析鉴定HP8-1菌株，探讨其对植物病原菌的抑菌效果和生物学功能及在番茄根际的定殖能力，并通过盆栽试验测定其对番茄疫霉根腐病的防治效果和对番茄生长的影响。【结果】HP8-1为多粘类芽孢杆菌(Paenibacillus polymyxa),对多种植物病原菌具有抑菌效果，具有解磷、分解蛋白、分解纤维素、产嗜铁素和产吲哚乙酸等生物学功能；HP8-1在番茄根系和根际土壤具有稳定的定殖能力，尤其是在接种疫霉菌的条件下其定殖量趋于增加并显著高于未接种疫霉菌的条件；HP8-1处理对番茄疫霉根腐病具有明显的防治效果，防治效果达到57.41%;同时，HP8-1处理显著促进番茄植株生长、提高叶绿素含量和根系活力。【结论】HP8-1菌株稳定定殖在番茄根系和根际土壤，防治番茄疫霉根腐病，促进番茄生长，是对番茄疫霉根腐病具有生物防治潜力的资源。

关键词(KeyWords)： 根际促生细菌;多粘类芽孢杆菌;番茄疫霉根腐病;根际定殖;生物防治

Abstract:

Keywords:

基金项目(Foundation): 河南省重点科技攻关资助项目(202102110218);; 国家重点研发计划项目(2017YFD0201100)

作者(Author): 王艺茹,潘培培,沈虎生,张林林,王润东,何梦菡,申顺善

DOI: 10.16445/j.cnki.1000-2340.20231019.003

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