SOBIR1将土豆对虫攻击和高温压力的反应联系起来
Chuzhen Chen1,2, Ricardo A R Machado3, Jian Zhong1
1State Key Laboratory of Rice Biology, Ministry of Agricultural and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Sciences, Zhejiang University, Hangzhou, China.
Plant, cell & environment
|September 2, 2025
概括
StSOBIR1基因在正常温度下阻碍植物对食草动物的防御,但有助于高温应激反应. 在综合压力下,它在防御中的作用消失,凸显了复杂的压力相互作用.
科学领域:
- 植物分子生物学
- 植物应激生理学
- 植物与昆虫的相互作用
背景情况:
- 草食和高温是影响植物的常见环境压力.
- 了解协调植物对多种压力的反应的分子机制至关重要.
研究的目的:
- 研究StSOBIR1基因在调节植物对食草和高温压力的作用.
- 阐明 StSOBIR1 在单一和组合应激条件下的作用的分子机制.
主要方法:
- 基因分析 (敲击和过度表达的植物)
- 分子生物学技术 (基因表达分析)
- 生物测定 (食草动物耐药性,耐压力指标)
- 化学分析 (雅斯蒙酸信号)
- 转录组分析
主要成果:
- 在正常温度下,StSOBIR1负面调节酸 (JA) 信号传递和草食耐药性.
- StSOBIR1积极调节高温应激反应,促进糖糖,和叶绿素的积累.
- 高温抑制了StSOBIR1的表达,并通过改变基因共同表达网络来破坏其在草食动物防御中的作用.
结论:
- StSOBIR1对植物对草食和高温压力的反应进行微调.
- 在联合压力下,StSOBIR1对草食动物防御的负调节丧失,这表明功能切换.
- 植物对联合压力的反应是复杂的,涉及分子功能的重置优先级.
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