来自极端环境的Aureobasidium pullulans菌株:新的潜在生物控制剂?
Martina Lucci1, Nataliia Khomutovska2, Giuseppe Firrao1
1Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, 33100 Udine, Italy.
Microorganisms
|November 27, 2025
概括
来自极端环境的微生物酵母显示出农业生物控制的潜力. 乌雷奥巴西迪亚普鲁兰斯菌株表现出耐热性,并抑制了收获后的病原体Monilinia fructicola.
科学领域:
- 微生物学 微生物学
- 农业科学 农业科学
- 生物技术是生物技术.
背景情况:
- 极端环境有着未知的微生物多样性,具有农业潜力.
- 酵母,特别是Aureobasidium,存在于各种生态系统中.
- 黑酵母正在作为生物控制剂 (BCA) 进行研究.
研究的目的:
- 从极端环境中分子识别和遗传学描述酵母分离物.
- 为了评估Aureobasidium pullulans的极端友好和极端耐受性行为.
- 评估这些酵母作为抗 Monilinia fructicola 的生物控制剂的潜力.
主要方法:
- 117种酵母菌株的分离和分子鉴定.
- 多位置序列类型化 (ITS,ELO,EF-1alpha) 用于遗传学分析.
- 在体外和体内测试,以评估对Moniilinia fructicola的生物控制活性.
- 在不同的pH值和温度下评估耐热性和酶生成.
主要成果:
- 奥利奥巴西迪亚是代表性最多的属 (57%).
- 观察到生长和细胞生产的显著生态变异.
- 大多数品种表现出了显著的耐热性.
- 来自阿尔及利亚沙漠和阿尔托阿迪杰地区的菌株分别表现出增强的耐热性和生物控制能力.
结论:
- 极端环境是新生物控制剂的有希望的来源.
- 乌雷奥巴西迪亚普鲁兰斯菌株表现出显著的耐热性和生物控制潜力.
- 需要进一步的研究来阐明收获后应用的作用机制.
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