研究四种冬季谷物中对脱氧尼瓦伦醇积累的代谢植物反应

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Laura Righetti^1,2,3, Francesca Vanara⁴, Renato Bruni¹

¹Department of Food and Drug, University of Parma, 43124 Parma, Italy.

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|February 5, 2024

概括

在小麦中脱氧尼瓦伦醇 (DON) 的污染会引发植物二次代谢产品的变化. 这些发现突显了谷物作物中一般化学防御对菌病 (如菌头部炎) 的作用.

科学领域:

农业科学农业科学
植物病理学植物病理学
生物化学生物化学

背景情况:

脱氧尼瓦伦醇 (DON) 是由类真菌产生的真菌毒素,在全球范围内造成大量作物损失.
在小麦等谷物中的DON污染可以改变植物的二次新陈代谢,影响疾病抵抗力.
了解这些代谢变化对于开发耐药作物品种和管理真菌病至关重要.

研究的目的:

调查DON污染对各种Triticum物种的二次代谢物概况的影响.
在现场条件下分析化合物和脂质组特征的变化.
确认非特异性化学防御在小麦对DON的反应中的作用.

主要方法:

在15种Triticum基因型中分析类 (基醇,酸).
使用高分辨率质谱法 (HRMS) 进行非向性脂质组分析.
在两个地点和两个收获年份进行田间耕作,以模拟自然条件.

主要成果:

DON污染引发了目标类和整体脂质组的显著变化.
在多种Triticum物种和品种中观察到二次代谢物通路的调节.
结果在不同的环境条件和基因型中一致,加强了之前的发现.

结论:

在Triticum物种中,DON污染引发了一种保存反应,涉及到二次代谢物的调节.
非特异性化学防御在植物抵抗DON和相关的真菌病原体方面发挥着至关重要的作用.
这项研究为在田间条件下谷物中的植物病原体相互作用提供了更广泛的了解.

关键词:

这里是 Fusariumarium .这是一种真菌感染感染.菌类毒素 (mycotoxins) 是一种有毒的物质.植物代谢组合学植物-病原体相互作用

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