Kaddes Amine, Parisi Olivier, Berhal Chadi, Ben Kaab Sofiene, Fauconnier Marie-Laure, Nasraoui Bouzid, Jijakli M Haissam, Massart Sébastien, De Clerck Caroline
Integrated and Urban Plant Pathology Laboratory, Gembloux Agro-Bio Tech (GxABT), University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium.
General and Organic Chemistry Unit, Gembloux Agro-Bio Tech (GxABT), University of Liège, Passage des Déportés 2, Gembloux 5030, Belgium.
Molecules. 2016 Aug 26;21(9):1124. doi: 10.3390/molecules21091124.
This study aimed to determine the effect of Volatile Organic Compounds (VOCs) on some pathogens, these VOCs were emitted during interactions of barley with Fusarium culmorum Schltdl and/or Cochliobolus sativus Shoemaker, two common root rot pathogens. Our work shows that two organic esters: methyl propanoate (MP) and methyl prop-2-enoate (MA) significantly reduced the development of fungi in vitro. Additional tests showed that the esters significantly inhibited spore germination of these pathogens. The activity of these VOCs on a wide range of fungal and bacterial pathogens was also tested in vitro and showed inhibitory action. The effect of the VOCs on infected barley seeds also showed plantlets growing without disease symptoms. MA and MP seem to have potential value as alternative plant protection compounds against barley bioagressors.
本研究旨在确定挥发性有机化合物（VOCs）对某些病原体的影响，这些VOCs是在大麦与两种常见的根腐病原体——禾谷镰刀菌（Fusarium culmorum Schltdl）和/或燕麦核腔菌（Cochliobolus sativus Shoemaker）相互作用期间释放出来的。我们的研究表明，两种有机酯：丙酸甲酯（MP）和2-丙烯酸甲酯（MA）在体外能显著抑制真菌生长。进一步测试表明，这些酯能显著抑制这些病原体的孢子萌发。这些VOCs对多种真菌和细菌病原体的活性也在体外进行了测试，结果显示具有抑制作用。VOCs对受感染大麦种子的影响还表现为幼苗生长时无病害症状。MA和MP似乎具有作为对抗大麦生物侵害者的替代植物保护化合物的潜在价值。
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