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Imane Laraba¹, Martha M Vaughan², Susan P McCormick³

¹AAFC, 960 carling ave, Ottawa, Canada, K1A 0C5; imane.laraba@agr.gc.ca.

|March 22, 2025

概括

伊利诺伊州的小麦田中正在出现Fusarium冠 (FCR),由Fusarium graminearum和其他物种引起. 了解这些病原体是管理在不断变化的农业环境中小麦疾病的关键.

科学领域:

植物病理学植物病理学
农业学是一种农业学.
菌类学菌类学是指菌类学.

背景情况:

气候和农业学的变化需要在新地区进行植物疾病监测.
菌冠 (FCR) 影响小麦和谷物,造成经济问题,特别是在干旱地区.
FCR病原体可能导致Fusarium头部炎症和真菌毒素污染.

研究的目的:

为了确定伊利诺伊州软红色冬季小麦中Fusarium冠 (FCR) 的病因病因.
了解与FCR相关的Fusarium物种和二次殖民者的多样性.
评估受影响小麦中真菌毒素污染的风险.

主要方法:

实地调查于2022年在伊利诺伊州的小麦田中进行.
观察到严重的皇冠腐烂的症状.
使用翻译延长因子1α测序识别出病因因子.

主要成果:

四个小麦田表现出严重的FCR症状的高发病率.
鉴定出Fusarium graminearum,F. parabolicum和F. acuminatum是主要的FCR代理物.
主导的Fusarium物种多样化,分离物种跨越五个物种复合体;注意到多种多样的次要殖民者.
在选的小麦头上没有检测到真菌毒素.

结论:

当地条件显著影响小麦的FRC和病原体动态.
在伊利诺伊州识别FCR剂为作物管理和育种提供了资源.
在不断发展的农业生态系统中,对FRC需要有效的控制策略.

关键词:

这就是Fusarium acuminatum.类植物 (Fusarium graminearum) 是一种植物.这里是 Fusarium parabolicum 的位置.美国中西部的美国中西部柔软的红色冬季小麦冬季小麦

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