文章基本信息

标题：Potential of Octanol and Octanal from iHeracleum sosnowskyi/i Fruits for the Control of iFusarium oxysporum/i f. sp. ilycopersici/i
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作者：May Khaing Hpoo ; Maryia Mishyna ; Valery Prokhorov 等
期刊名称：Sustainability
印刷版ISSN：2071-1050
出版年度：2020
卷号：12
期号：22
页码：9334
DOI：10.3390/su12229334
语种：English
出版社：MDPI, Open Access Journal
摘要：The antifungal activity of volatile compounds from the fruit, leaf, rhizome and root of 109 plant species was evaluated against iFusarium oxysporum/i f. sp. ilycopersici/i (FOL) race 1—the tomato wilt pathogen—by using the modified dish pack method. Eighty-eight plant samples inhibited mycelial growth, including volatiles from fruits of iHeracleum sosnowskyi/i, which exhibited the est antifungal activity, showing 67% inhibition. Two volatile compounds from the fruits of iH. sosnowskyi/i (octanol and octanal) and itrans/i-2-hexenal as a control were tested for their antifungal activities against FOL race 1 and race 2. In terms of half-maximal effective concentration (ECsub50/sub) values, octanol was found to be the most inhibitory compound for both pathogenic races, with the smallest ECsub50/sub values of 8.1 and 9.3 ng/mL for race 1 and race 2, respectively. In the biofumigation experiment, the lowest disease severity of tomato plants and smallest conidial population of race 1 and race 2 were found in itrans/i-2-hexenal and octanol treated soil, while octanal had an inhibitory effect only on race 2. Therefore, our study demonstrated the effectiveness of volatile octanol and itrans/i-2-hexenal on the control of the mycelial growth of two races of iFusarium oxysporum/i f. sp. ilycopersici/i and may have potential for the future development of novel biofumigants.