Kluyveromyces marxianus YG-4 对苹果上扩张青霉 LPH9 的生物控制活性。

IF 5 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

International journal of food microbiology Pub Date : 2024-10-22 DOI:10.1016/j.ijfoodmicro.2024.110943

Mengge Ning , Qi Guo , Peng Guo , Yuanyuan Cui , Kai Wang , Gengan Du , Zhouli Wang , Yahong Yuan , Tianli Yue

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引用次数: 0

摘要

扩张青霉（P. expansum）是一种广泛传播的真菌病原体，会造成严重的经济损失和公共卫生问题。本研究旨在探讨马氏克鲁维氏菌 YG-4 （K. marxianus YG-4）对扩张青霉的抗真菌作用及可能的机制。结果表明，竞争养分和空间以及释放挥发性有机化合物（VOCs）是其抗真菌机制。根据气相色谱-质谱分析，香茅醇可能是 K. marxianus YG-4 VOCs 的抗真菌成分。进一步的实验表明，香茅醇通过破坏细胞结构、扰乱氧化还原系统、降低抗氧化酶活性和造成氧化损伤来抑制扩张菌 LPH9 的生长。K. marxianus YG-4、K. marxianus YG-4 VOCs 和香茅醇能有效抑制苹果上扩张孢子菌的孢子萌发。上述结果表明，K. marxianus YG-4 具有很强的生物防治活性，可作为水果保鲜的优良候选菌株。

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Biocontrol activity of Kluyveromyces marxianus YG-4 against Penicillium expansum LPH9 on apples

Penicillium expansum (P. expansum), a widespread fungal pathogen, causes serious economic loss and public health concerns. The aim of this research is to investigate the antifungal effect of Kluyveromyces marxianus YG-4 (K. marxianus YG-4) against P. expansum and possible mechanism. The results showed that competition for nutrients and space, as well as the release of volatile organic compounds (VOCs), are the antifungal mechanisms. Citronellol may be the antifungal component of K. marxianus YG-4 VOCs based on GC–MS analysis. Further experiments had shown that citronellol inhibited the growth of P. expansum LPH9 by damaging the cell structure, disrupting the redox system, reducing antioxidant enzyme activity, and causing oxidative damage. K. marxianus YG-4, K. marxianus YG-4 VOCs and citronellol can effectively inhibit the spore germination of P. expansum on apples. The above results indicated that K. marxianus YG-4 had strong biocontrol activity and can be used as an excellent candidate strain for fruit preservation.

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来源期刊

International journal of food microbiology 工程技术-食品科技

CiteScore

10.40

自引率

5.60%

发文量

322

审稿时长

65 days

期刊介绍： The International Journal of Food Microbiology publishes papers dealing with all aspects of food microbiology. Articles must present information that is novel, has high impact and interest, and is of high scientific quality. They should provide scientific or technological advancement in the specific field of interest of the journal and enhance its strong international reputation. Preliminary or confirmatory results as well as contributions not strictly related to food microbiology will not be considered for publication.