Diversity in the growth response of isolates of Fusarium oxysporum f.sp. conglutinans to different essential oils

IF 1.1 4区农林科学 Q3 PLANT SCIENCES

Journal of Phytopathology Pub Date : 2024-06-14 DOI:10.1111/jph.13332

Stepan Helmer, Matej Panek

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Abstract

Fusarium oxysporum f.sp. conglutinans (FOC) causes yellow wilt, a serious cabbage disease. This fungal species is composed of many strains within two pathotypes. In this study, the inhibitory effect of essential oils of six aromatic and medicinal plants (oregano, thyme, clove, cinnamon, lemongrass, litsea) at multiple concentrations on eight FOC isolates of different origins was investigated. Our results showed that oregano essential oil had the greatest inhibitory effect. The tested essential oils could be divided into three clusters according to the similar content of their main components (oregano and thyme, clove and cinnamon, lemongrass, and litsea), which correlated to some extent with their inhibitory effects on FOC. The tested isolates also differed in their response to the studied essential oils. The differences within FOC races were more important than between races, and the sensitivity of isolates against essential oils seemed to be more related to the geographical origin of the isolates, rather than to their race affiliation.

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Fusarium oxysporum f.sp. conglutinans 分离物对不同精油的生长反应的多样性

Fusarium oxysporum f.sp. conglutinans（FOC）会引起黄萎病，这是一种严重的甘蓝病害。这种真菌由两种病型中的许多菌株组成。本研究调查了六种芳香药用植物（牛至、百里香、丁香、肉桂、柠檬草、石蒜）的精油在多种浓度下对八种不同来源的 FOC 分离物的抑制作用。结果表明，牛至精油的抑制作用最大。根据主要成分（牛至和百里香、丁香和肉桂、柠檬草和石莲花）含量的相似性，可将受测精油分为三组，这在一定程度上与它们对 FOC 的抑制作用相关。被测试的分离物对所研究的精油的反应也不尽相同。FOC 种族内部的差异比种族之间的差异更重要，分离物对精油的敏感性似乎更多地与分离物的地理来源有关，而不是与其种族归属有关。

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来源期刊

Journal of Phytopathology 生物-植物科学

CiteScore

2.90

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Phytopathology publishes original and review articles on all scientific aspects of applied phytopathology in agricultural and horticultural crops. Preference is given to contributions improving our understanding of the biotic and abiotic determinants of plant diseases, including epidemics and damage potential, as a basis for innovative disease management, modelling and forecasting. This includes practical aspects and the development of methods for disease diagnosis as well as infection bioassays. Studies at the population, organism, physiological, biochemical and molecular genetic level are welcome. The journal scope comprises the pathology and epidemiology of plant diseases caused by microbial pathogens, viruses and nematodes. Accepted papers should advance our conceptual knowledge of plant diseases, rather than presenting descriptive or screening data unrelated to phytopathological mechanisms or functions. Results from unrepeated experimental conditions or data with no or inappropriate statistical processing will not be considered. Authors are encouraged to look at past issues to ensure adherence to the standards of the journal.