Natamycin and potassium sorbate synergistically enhance resistance to Botrytis cinerea by activating the phenylpropanoid metabolism in harvested strawberry

IF 6.4 1区农林科学 Q1 AGRONOMY

Postharvest Biology and Technology Pub Date : 2024-12-16 DOI:10.1016/j.postharvbio.2024.113361

Xiang Zhang , Li Wang , Yue-yan Chen, Yao Dai, Mei-qing Li, Hai-wei Zhang

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引用次数: 0

Abstract

Gray mold, caused by Botrytis cinerea, is a prominent postharvest disease that significantly diminishes the commercial value of strawberries. This study aimed to reveal the effects and potential mechanism of collaborative treatment with natamycin and potassium sorbate (S_NPS) on enhancing gray mold resistance by regulating phenylpropanoid metabolism in strawberry fruit. All strawberries were first inoculated with a suspension of B. cinerea conidia, air dried and then the two experimental groups received injections of 10 μL S_NPS (1 of minimal inhibitory concentration, MIC) and S_NPS (3 of MIC) respectively, with distilled water as control. Strawberries treated with S_NPS exhibited a significant reduction of 70 % and 50 % in disease incidence and lesion diameter after 3 days, respectively, compared to untreated samples. S_NPS treatment also inhibited weight loss, and maintained high hardness and the contents of total soluble solids, anthocyanin and ascorbic acid. S_NPS treatment activated Phenylalanine Ammonia-lyase, cinnamic acid-4-hydroxylase and 4-coumaric acid- CoA ligase, and also promoted the accumulation of total phenols, total flavonoids, and lignin. Moreover, strawberry fruit treated with S_NPS inducer the accumulation of disease-course related proteins compared to the control. S_NPS treatment effectively inhibit gray mold infection in strawberries by activating the phenylpropanoid metabolism pathways and disease process-related protein accumulation.

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来源期刊

Postharvest Biology and Technology 农林科学-农艺学

CiteScore

12.00

自引率

11.40%

发文量

309

审稿时长

38 days

期刊介绍： The journal is devoted exclusively to the publication of original papers, review articles and frontiers articles on biological and technological postharvest research. This includes the areas of postharvest storage, treatments and underpinning mechanisms, quality evaluation, packaging, handling and distribution of fresh horticultural crops including fruit, vegetables, flowers and nuts, but excluding grains, seeds and forages. Papers reporting novel insights from fundamental and interdisciplinary research will be particularly encouraged. These disciplines include systems biology, bioinformatics, entomology, plant physiology, plant pathology, (bio)chemistry, engineering, modelling, and technologies for nondestructive testing. Manuscripts on fresh food crops that will be further processed after postharvest storage, or on food processes beyond refrigeration, packaging and minimal processing will not be considered.