在智利的葡萄藤 (葡萄藤) 上的Botryosphaeriaceae物种的宿主跳跃和病原性 (Vitis vinifera)
Yadira Hernández1, Mauricio Lolas1, Karina Elfar2
1Laboratory of Fruit Pathology, Faculty of Agricultural Sciences, University of Talca, Talca 3460000, Chile.
Microorganisms
|February 26, 2025
概括
导致葡萄藤衰退疾病的真菌病原体可以从水果树和坚果树传播到智利的葡萄树上. 这项研究发现,大多数测试的Botryosphaeriaceae物种是致病的,Neofusicoccum物种是最具侵略性的.
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:
- 玻尿菌死退病是一种重要的葡萄树干疾病 (GTD),由全球和智利的玻尿菌属物种引起.
- 众所周知,Botryosphaeriaceae会感染智利的各种水果和坚果作物,但它们感染葡萄树的潜力仍然不清楚.
研究的目的:
- 评估来自智利葡萄树上各种作物中隔离的Botryosphaeriaceae物种的攻击性和交叉感染潜力.
- 确定来自树宿主的真菌分离物是否对智利葡萄酒健康构成风险.
主要方法:
- 在温室和葡萄园条件下,对六种品种的六种Botryosphaeriaceae物种的葡萄藤植物材料 (切片,干,芽) 进行注射.
- 通过测量菌悬浮和插头引起的死角病变长度来评估病原性.
- 评估来自葡萄树,果,蓝和核桃的分离物的交叉感染潜力.
主要成果:
- 大多数经过测试的Botryosphaeriaceae物种在葡萄藤组织上表现出致病性,无论它们的原宿主是谁.
- 结核病变的尺寸有显著的变化 (11.986.2毫米与菌悬浮; 24.8253.7毫米与菌塞).
- 尼奥福西科克种类表现出最高的侵略性,其次是拉西奥迪普洛迪亚theobromae,Diplodia mutila和D. seriata,即使与非葡萄葡萄主机分离,也表现出最高的侵略性.
结论:
- 来自智利替代水果和坚果宿主的Botryosphaeriaceae物种具有感染和导致葡萄藤中死退疾病的潜力.
- 这些病原体在其他作物上的存在代表了重要的注射源,增加了智利葡萄园的风险.
- 管理策略应考虑这些真菌病原体的更广泛的宿主范围,以保护葡萄藤的健康.
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