在草中选择南极酵母作为灰菌生物控制剂
Eskálath Morganna Silva Ferreira1, Gabriela Garmendia2, Vívian Nicolau Gonçalves1,3
1Laboratory of General and Applied Microbiology, Federal University of Tocantins, Palmas, TO, Brazil.
Extremophiles : life under extreme conditions
|July 6, 2023
概括
南极酵母在控制草灰菌方面表现有前途. Debaryomyces hansenii显著降低了草上灰色菌的发生率,为化学杀菌剂提供了天然的替代品.
科学领域:
- 微生物学 微生物学
- 植物病理学 植物病理学
- 生物技术是生物技术.
背景情况:
- 由Botrytis cinerea引起的灰色菌显著限制了草的生产.
- 化学杀菌剂是主要的控制方法,但需要替代策略.
- 来自极端环境的灵性酵母是潜在的生物控制剂.
研究的目的:
- 来自南极地区的心理耐受性酵母的选择.
- 为了评估它们在低温储存的草上对灰菌的生物控制潜力.
主要方法:
- 在体外查20种对抗酵母的耐热性和酶活性.
- 选择了Debaryomyces hansenii,Rhodotorula mucilaginosa和Dioszegia hungarica进行进一步的研究.
- 在体内评估D. hansenii在草果上的疗效.
主要成果:
- D. hansenii 通过浸泡浴显著减少了灰色菌的发生率:受损水果的82%和未受损水果的86%.
- 选择的南极酵母,D. hansenii,在控制收获后灰色菌方面被证明是有效的.
结论:
- 适应寒冷的南极酵母,特别是D. hansenii,代表了对草中收获后灰菌的有希望的生物控制策略.
- 这项研究强调了极端动物在开发可持续农业实践方面的潜力.
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