在现场条件下测试天然低毒性对栗病生物控制的效率
Simone Prospero1, Janine Melanie Schwarz1,2, Marin Ježić3
1Swiss Federal Research Institute WSL, 8903 Birmensdorf, Switzerland Division of Microbiology, Department of Biology, Faculty of Science, University of Zagreb Zagreb Croatia https://ror.org/00mv6sv71.
IMA fungus
|February 5, 2026
概括
病毒介导的低毒性有效地控制了侵袭性栗子病真菌Cryphonectria parasitica. 实地研究证实CHV1生物控制的成功,显示在欧洲减少瘤生长和增加树木存活率.
科学领域:
- 森林病理学 森林病理学
- 生物控制是生物控制.
- 侵入性物种管理 侵袭性物种管理
背景情况:
- 全球连接性增加了生物入侵,包括森林病原体.
- 栗子病 (Cryphonectria parasitica) 是一个重要的入侵性森林疾病.
- 使用病毒媒介低毒性 (CHV1) 的生物控制是化学农药的一个有希望的替代品.
研究的目的:
- 评估在野外条件下使用CHV1介导的栗病生物控制的有效性.
- 评估植物相容性 (vc) 类型对CHV1传播和疗效的影响.
- 调查真菌基因型移民在CHV1流行病学中的作用.
主要方法:
- 在瑞士,克罗地亚和北马其顿的实地实验中,自然存在低病毒性C. parasitica种群.
- 用各种类型的VC对树皮癌进行人工接种.
- 监测瘤的生长,胞和病毒的传播.
主要成果:
- CHV1显著降低了瘤的生长和分泌,提高了栗子芽的存活率.
- 植物性不相容性障碍对CHV1局部传播的限制比预期的要小.
- 新真菌基因型的移民促进了CHV1的传播.
结论:
- 在欧洲,CHV1是一种高度有效的生物控制剂,用于治疗栗子病.
- 现场条件有利于CHV1的传播,克服了体外预测的障碍.
- 避免引入来自欧洲以外的基因相距较远的C. parasitica vc类型,以确保生物控制的成功.
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