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Antifungal activity of diacetyl, a volatile organic compound, on Trichoderma lixii F2 isolated from postharvest lanzhou lily bulbs

引用

Food Bioscience 2023年第2期52卷 193-202页

作者： Lijun Ling Mingmei Pang Hong Luo Wenting Cheng KunLing Jiang Yuanyuan Wang College of Life Sciences Northwest Normal UniversityLanzhou730070PR China The Rural Development Academy Northwest Normal UniversityPR China

The most severe fungal disease is postharvest gray mold,which might cause massive losses in lanzhou lily *** microorganism-produced volatile organic compounds(VOCs)have been proven to have antifungal action and can be employed as fruit and vegetable *** most recent research discovered that diacetyl(2,3-butanedione)produced by Bacillus subtilis CL2 could significantly prevent some *** goal of this investigation was to see if diacetyl had antifungal properties against Trichoderma lixii F2,one of the most common postharvest rot pathogens of lanzhou lily *** results indicated that diacetyl(1.587μL/mL)fumigation treatment significantly inhibited the hyphal growth,modified hyphal morphology,and disrupted the cell membrane *** vivo tests the antifungal mechanisms of diacetyl on *** F2 were performed in lanzhou lily *** results indicated that the content of total phenols and flavonoids increased,while malondialdehyde decreased under different treatment by ***,the activities of peroxidase,polyphenol oxidase,catalase,and superoxide dismutase and phenylalanine ammonia-lyase in lanzhou lily bulbs were *** was showed that diacetyl could eliminate excessive reactive oxygen species,reduce the damage of plant cells,and improve the resistance of lanzhou lily bulbs against *** *** research reveals that diacetyl could activate antioxidant enzymes and disease-resistant enzymes in lanzhou lily bulbs to prevent pathogenic fungus from invading and inducing resistance,laying the groundwork for future uses in preserving lanzhou lily bulbs.

关键词： Diacetyl lanzhou lily bulbs Postharvest preservation Volatile organic compounds Inhibitory effects

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