原生生物蓝菌株表现出对三种土壤传播的病原性真菌的敌意
Pilar Águila-Carricondo1, Raúl Román2, José Ignacio Marín-Guirao3
1Department of Chemical, Energy and Mechanical Technology, Universidad Rey Juan Carlos, C/Tulipán s/n, 28933 Móstoles, Spain.
Pathogens (Basel, Switzerland)
|July 26, 2024
概括
原生土壤蓝藻显示出生物控制的潜力. 诺斯托克公社的产品在体外有效抑制了植物病原菌,但在植物试验中有效性各不相同,这凸显了需要优化应用方法的需要.
科学领域:
- 农业科学 农业科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 土壤传播的真菌病对作物生产构成重大威胁.
- 生物土壤地有各种微生物,具有潜在的生物控制特性.
- 菌因其农业应用而越来越多地被探索.
研究的目的:
- 评估本土土壤蓝藻细菌对关键植物病原菌的体外生物控制疗效.
- 确定蓝菌株,培养生长阶段和收获后处理对生物控制活动的影响.
- 评估有前途的基于蓝菌的产品的工厂性能.
主要方法:
- 在体外双培养试验中,使用三种蓝藻 (Nostoc commune,Scytonema hyalinum,Tolypothrix distorta) 和三种真菌 (Phytophthora capsici,Pythium aphanidermatum,Fusarium oxysporum) 进行了测试.
- 菌被测试在不同的生长阶段 (对数与静止) 和作为原始培养物,过物或提取物.
- 选择的Nostoc公社产品进一步在植物中对Phytophthora capsici进行了评估.
主要成果:
- 诺斯托克公社在所有测试的真菌中表现出最高的体外菌生长抑制率.
- 与对数相处理相比,静态相培养及其衍生产品 (过剂,提取物) 显示出更高的抗真菌活性.
- 诺斯托克公社的产品在体外抑制了Phytophthora capsici的生长率高达77.7%.
- 对于Nostoc社团产品来说,没有观察到在延迟疾病发病或减少损害方面显著的植物疗效.
结论:
- 诺斯托克公社显示出作为生物控制剂对土壤传播植物病原体的显著潜力.
- 优化蓝菌株,培养条件和收获后加工对于最大限度地提高生物控制有效性至关重要.
- 将体外成功转化为植物内有效性需要进一步研究应用方法和环境因素.
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