暴露于棕色虫感染和高温应激的苗中的协同反应机制
Danyun Cao1, Yuchen Ping1, Yiru Lin1
1College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China.
Plants (Basel, Switzerland)
|June 13, 2025
概括
高温预处理提高了大米对棕色虫 (BPH) 感染的抵抗力. 这项研究确定了涉及大米的关键基因.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 农业学是一种农业学.
背景情况:
- 米产受到棕色植物 (BPH) 和高温压力的威胁.
- 之前的研究分别确定了BPH耐药性和耐热性基因.
- 大米对联合压力的协同反应尚未得到充分理解.
研究的目的:
- 为了研究大米如何应对棕色虫的染和高温压力.
- 为了确定大米对这些双重压力的反应背后的分子机制.
- 发现提升大米复合抗压力的候选基因.
主要方法:
- 转录组分析以在压力条件下识别差异表达基因 (DEGs).
- 权重基因共同表达网络分析 (WGCNA) 以确定与压力反应相关的基因模块.
- 鉴定可能调节同时抗性的候选基因.
主要成果:
- 高温预处理增强了米苗对BPH的抵抗力.
- 食BPH并没有影响大米对高温的耐受性.
- 在高温下,DEGs在代谢和 phenylpropanoid 生物合成途径中得到了丰富.
- WGCNA强调了与蛋白质折叠和跨膜运输相关的红色和黑色模块.
- 确定了候选基因,包括Loc_Os01g02170和Loc_Os01g59870.
结论:
- 高温预处理使大米中的BPH产生交叉抗性.
- 烯胺生物合成和蛋白质折叠途径对于这种反应至关重要.
- 已识别的候选基因为开发具有增强多重应激耐受性的大米品种提供了资源.
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