ACL1-ROC4/5复合体揭示了大米对棕色虫侵袭和干旱的反应的共同机制
Zhihuan Tao1,2, Lin Zhu1,2, Haichao Li1
1Key Laboratory of Plant Design, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
Nature communications
|September 16, 2024
概括
米中的斜曲叶1 (ACL1) 基因对害虫耐药性和干旱耐受性产生负面影响. 它与ROC4/5蛋白的相互作用通过调节皮质和形细胞来增强这些特征,提供了一个新的繁殖策略.
科学领域:
- 植物分子生物学 植物分子生物学
- 农作物科学 农作物科学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 棕色虫 (BPH) 是主要的水害虫,干旱对环境造成重大压力.
- BPH感染和干旱会引起类似的叶子症状,包括叶子滚动和型细胞收缩.
- 垂直曲叶1 (ACL1) 基因与负调节BPH耐药性和干旱耐受性有关.
研究的目的:
- 调查ACL1在BPH耐药性和干旱耐受性中的作用背后的分子机制.
- 为了识别与ACL1相互作用的蛋白质及其功能.
- 探索ACL1交互蛋白质在提高大米弹性方面的潜力.
主要方法:
- 利用TurboID系统进行近距离标记,以识别蛋白质相互作用.
- 进行了多项生化分析,以确认蛋白质的相互作用和功能.
- 分析了转基因大米系的表型,包括过度表达和突变系.
主要成果:
- ACL1与大米最外端细胞特异性 (ROC) 蛋白相互作用,特别是ROC4和ROC5.5.
- ROC4和ROC5通过调节皮质和形细胞来积极调节BPH耐药性和耐干旱性.
- ACL1与ROC4/ROC5竞争结合,并与TOPLESS相关的蛋白质相互作用,表明一个复杂的调节网络.
结论:
- ACL1-ROC4/5复合物协同增强大米的干旱耐受性和BPH耐受性.
- 这种机制涉及皮质含量和状细胞发育的调节.
- 鉴定出来的机制为培育抗BPH和耐旱米品种提供了潜在的途径.
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