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阿斯伯吉勒斯部分尼格里菌株对阿斯伯吉勒斯碳化菌的生物控制潜力

Júlia Marquès¹, Kaitlyn Parra¹, Gemma Castellá²

¹Veterinary Mycology Group, Department of Animal Health and Anatomy, Universitat Autònoma de Barcelona, Bellaterra, Spain.

Applied microbiology and biotechnology

|March 10, 2026

概括

产生非奥克拉托克素A (OTA) 的阿斯伯吉勒斯菌株,特别是阿斯伯吉勒斯卵巢菌,显示出对葡萄中奥克拉托克素A污染的生物控制剂的潜力. 菌株A-6760有效地降低了 ochratoxigenic Aspergillus carbonarius 种群和 OTA 水平.

科学领域:

菌类学菌类学是指菌类学.
食品安全食品安全
农业科学农业科学

背景情况:

阿斯珀吉勒斯碳是葡萄中主要的甲毒素A (OTA) 生产者.
减少OTA污染对于葡萄和葡萄酒的质量至关重要.
生物控制剂为OTA缓解提供了一个有希望的策略.

研究的目的:

为了评估OTA生产的生物控制的非ochratoxigenicAspergillus部分尼格里菌株.
评估这些菌株对A. carbonarius. 的OTA减少能力和竞争能力.

主要方法:

在体外共培养了具有 ochratoxigenic 的 A. carbonarius 和 22 种非 ochratoxigenic 的 Aspergillus 菌株.
量化OTA减少和真菌竞争力,使用微位板和qPCR测定.
基于OTA水平和真菌种群动态的生物控制潜力的评估.

主要成果:

生物控制的有效性和竞争力是特定于菌株的.
阿斯伯吉勒斯卵巢菌株显示出显著的OTA减少和A. carbonarius.的竞争性排除.
菌株A-6760显著降低了A. carbonarius的丰度 (<6%) 并抑制了OTA的产生.

结论:

一些非氧化的阿斯伯吉卢菌株,特别是A. uvarum,是有效的生物控制剂对OTA.
竞争性排斥是这些生物控制剂对OTA缓解的关键机制.
需要进一步的实地研究来验证像A. uvarum A-6760这样有前途的菌株的有效性.

关键词:

亚斯伯吉拉斯碳化物 (Aspergillus carbonarius) 是一种植物.阿斯珀吉勒斯部分尼格里尼格里.生物控制剂生物控制剂菌类相互作用菌类相互作用奥克拉托克辛A是一种

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