The Host Range of Fusarium proliferatum in Western Canada

文献类型： 外文期刊

第一作者： Yu, Haitian

作者： Yu, Haitian;Hwang, Sheau-Fang;Strelkov, Stephen E.;Yu, Haitian

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关键词： disease severity; Fusarium proliferatum; growth parameters; host range; principal component analysis; resistance; root rot

期刊名称：PATHOGENS （ 影响因子：3.7； 五年影响因子：3.7 ）

ISSN：

年卷期： 2024 年 13 卷 5 期

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收录情况： SCI

摘要： Fusarium proliferatum is associated with the root rot of many plant species, but knowledge of its impact on western Canadian field crops is limited. This study assessed the host range of this fungus and its effect on plant emergence, plant height, and shoot and root dry weights in repeated greenhouse experiments with wheat, barley, faba beans, peas, lentils, canola, lupine, and soybeans. Infection was confirmed via PCR, and principal component analysis determined the utility of different parameters in assessing host responses. All crops were at least partly susceptible, developing mild to severe disease at the seedling and adult stages, and showing significant reductions in growth. In general, the barley and wheat demonstrated higher tolerances to infection, followed by the faba bean and the pea. The soybean, canola, lupine, and lentil were most susceptible. The canola and the soybean were particularly vulnerable to F. proliferatum at the pre-emergence stage, while infection greatly reduced the lentil's biomass. Reductions in the barley's emergence and other growth parameters, however, occurred only under a high inoculum concentration. Variability in root rot severity among cultivars of the same crop indicated some diversity in host reactions within species. Nonetheless, the absence of fully-resistant crops may pose challenges in managing F. proliferatum in western Canadian cropping systems.

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