北美尖孢镰刀菌(Fusarium oxysporum f. sp. lentis, Fol)分离株的病原型特征

IF 1.7 Q2 PLANT SCIENCES

Plant Health Progress Pub Date : 2023-10-04 DOI:10.1094/php-06-23-0055-rs

Collins Bugingo, Monica Brelsford, Kevin McPhee, Mary Burrows

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引用次数: 0

摘要

扁豆枯萎病(Fusarium oxysporum f. sp. lentis, Fol)是影响北方大平原扁豆产量的一种毁灭性病害。确定鸢尾病的不同病型及其分布特征是抗性品种选育的重要组成部分。迄今为止，在北美还没有Fol病理类型的特征。利用国际干旱地区农业研究中心(ICARDA)的扁豆鉴别集，利用疾病指数(DI)对来自加拿大、蒙大拿州、华盛顿州和北达科他州的51株Fol致病分离株的叶面枯萎症状进行了毒力评估。鉴定出9种病型，其中病型7在所有不同的组中都是高毒力的，占55%。本研究首次确定了北美存在的Fol病理类型。这些发现将有助于未来扁豆枯萎病管理的努力。

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Pathotype-characterization of Fusarium oxysporum f. sp. lentis (Fol) Isolates in North America

Fusarium wilt caused by Fusarium oxysporum f. sp. lentis (Fol) is a devastating disease of lentils impacting yield in the Northern Great Plains. Characterizing the different pathotypes of Fol and their distribution is an essential part of breeding for resistant cultivars. To date, there has been no characterization of Fol pathotypes in North America. Using a lentil differential set from the International Center for Agriculture Research in Dry Areas (ICARDA), fifty-one pathogenic isolates of Fol from Canada, Montana, Washington, and North Dakota were characterized basing on virulence assessed on foliar wilt symptoms using a Disease Index (DI). Nine pathotypes were identified whereby pathotype 7 was highly virulent on all the differential sets and the most predominant at 55%. This study identified for the first time Fol pathotypes present in North America. These findings will help in future efforts for Fusarium wilt management in lentils.

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来源期刊

Plant Health Progress Agricultural and Biological Sciences-Horticulture

CiteScore

3.00

自引率

13.00%

发文量

期刊介绍： Plant Health Progress, a member journal of the Plant Management Network, is a multidisciplinary science-based journal covering all aspects of applied plant health management in agriculture and horticulture. Both peer-reviewed and fully citable, the journal is a credible online-only publication. Plant Health Progress is a not-for-profit collaborative endeavor of the plant health community at large, serving practitioners worldwide. Its primary goal is to provide a comprehensive one-stop Internet resource for plant health information.