精油移植的铜纳米颗粒作为潜在的下一代杀菌剂,用于玉米整体疾病管理
Lham Dorjee1, Robin Gogoi1, Deeba Kamil1
1Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India.
Frontiers in microbiology
|July 24, 2023
概括
精油移植的铜纳米粒子 (EGC) 对玉米病原体表现出强大的抗真菌活性. 优化的EGC度为杀菌剂提供了一个可持续的替代品,增强植物健康,而不会对环境产生重大影响.
科学领域:
- 农业科学 农业科学
- 纳米技术 纳米技术
- 植物病理学 植物病理学
背景情况:
- 传统的杀菌剂因环境问题和局限性而受到批评.
- 可持续的粮食生产需要有效和环保的作物保护战略.
- 植物病原体显著限制农业产量,要求新的管理解决方案.
研究的目的:
- 为了合成和表征精油移植的铜纳米粒子 (EGC).
- 评估EGC对主要玉米真菌病原体的疗效.
- 评估EGC对植物防御机制和生理特征的影响.
主要方法:
- 合成和表征EGC的抗真菌活性对抗双极菌可能,Rhizoctonia solani,Macrophomina phaseolina,Fusarium verticillioides和Sclerotium rolfsii. 这两种真菌有着非常强的抗真菌作用.
- 在低剂量时以ED50值和抑制区来确定体外疗效.
- 网室试验涉及种子处理和叶子喷雾,以不同的EGC度 (250,500,1000毫克L-1) 来评估疾病控制,植物生理和植物毒性.
主要成果:
- EGC在体外表现出显著的抗真菌活性,ED50范围从4356μg ml-1.
- 在体内应用可将梅花叶病 (MLB) 降低高达27%,并增强抗氧化酶活性.
- 最佳EGC度 (250500毫克L-1) 改善了植物生长和生理参数,而较高剂量 (1000毫克L-1) 诱导了植物毒性和改变了微量营养素的摄取.
结论:
- 精油移植的铜纳米颗粒对玉米病原体具有协同的抗真菌功效.
- 优化的EGC度是传统杀菌剂的有希望的,环保的替代品.
- 需要进一步的研究来平衡有效性与潜在的植物毒性和营养物质相互作用.
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