在体外相互作用期间调节果果核腐烂病原体的生长和菌毒性潜力
Manon Vignassa1,2, Christian Soria1,2, Noël Durand2,3
1CIRAD, UMR Qualisud, F-97410 Saint-Pierre, Réunion, France.
Toxins
|August 28, 2024
概括
松apple Fruitlet核心腐烂 (FCR) 涉及多种真菌. 研究表明,Talaromyces stollii与Fusarium物种产生对抗作用,影响真菌毒素水平和疾病发展.
科学领域:
- 植物病理学 植物病理学
- 菌类学 菌类学是指菌类学.
- 农业科学 农业科学
背景情况:
- 松apple Fruitlet Core Rot (FCR) 是一种复杂的真菌疾病.
- 除了Fusarium ananatum外,还发现了诸如Fusarium proliferatum,Fusarium oxysporum和Talaromyces stollii等新的病原体.
- 健康和患病的果的共存表明了复杂的病原体相互作用.
研究的目的:
- 研究四种主要的FCR病原体之间的相互作用.
- 了解化学通信在FCR病原发生中的作用.
- 确定这些相互作用对真菌生长和真菌毒素生产的影响.
主要方法:
- 进行了体外双对共同培养生物测试.
- 在10天内监测真菌生长和真菌毒素的产生.
- 观察到对抗性的视觉指标,如红色染色体.
主要成果:
- 塔拉罗米切斯 (Talaromyces stollii) 表现出对类物种的对抗性,将类繁殖物种的生长率降低了22%.
- 在交叉挑战过程中,波韦素含量显著下降,而富蒙尼辛度增加了7倍.
- 敌对是通过红色素和排泄物形成的视觉指示.
结论:
- 二次代谢产物在果果中塑造真菌群体方面发挥着至关重要的作用.
- 这些相互作用影响病原体的毒性,并有助于FCR的建立.
- 了解这些动态是管理果腐败的关键.
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