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在俄罗斯引起胡病的Fusarium物种:分子识别和致病性

Irina Engalycheva¹, Elena Kozar¹, Svetlana Frolova¹

¹Federal State Budgetary Scientific Institution Federal Scientific Vegetable Center (FSBSI FSVC), 143072 Vniissok, Russia.

|February 24, 2024

概括

这项研究确定了影响俄罗斯南部胡作物的Fusarium枯病原体. 它强调F.clavus和F.verticillioides是新发现的枯原因,对于制定控制策略至关重要.

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:

虫 (Fusarium wilt) 在全球范围内对胡的生产构成重大威胁.
了解导致变的特定Fusarium物种对于有效的疾病管理至关重要.

研究的目的:

在俄罗斯南部分子识别Fusarium真菌,导致胡枯.
确定克拉斯诺达尔州和克里米亚的Fusarium分离物的物种组成和病原性.
为制定控制措施和培育耐药胡品种提供数据.

主要方法:

在胡作物中实地监测菌感染 (2019-2022年).
使用翻译延长因子1-alpha (EF1a) 和内部转录间隔器 (ITS) 区域进行的家族遗传学分析.
菌分离物的宏观和微观形态学表征.
在胡植物上进行致病性测试.

主要成果:

鉴定了七个Fusarium物种:F.clavus,F.solani,F.oxysporum,F.verticillioides,F.commune,F.torulosum,以及F.sporotrichioides.这些物种中的一个是F.clavus.
在克拉斯诺达尔州,F. verticillioides和F. clavus被确定为导致枯的重要因素.
据报道,F.clavus和F.verticillioides首次作为胡中的Fusarium枯的致病原体.

结论:

这项研究提供了在俄罗斯南部的胡生产中首次分子识别Fusarium枯病原体.
对类病原体的物种组成和区域变异的新见解.
数据支持开发针对性生物控制和培育计划,以对胡的Fusarium枯抵抗.

关键词:

这里是 Fusariumarium .形态学形态学形态学病原性病原性病原性胡胡胡胡是一个遗传学分析遗传学分析

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