CCaP1/CCaP2/CCaP3与血H+ATPases相互作用,并通过调节Arabidopsis中的细胞壁修饰来促进热响应生长
Jing-Jing Wang1, Juan Gao1, Wei Li2
1State Key Laboratory of Plant Environmental Resilience, College of Life Sciences, Zhejiang University, Hangzhou 310027, China.
Plant communications
|March 15, 2024
概括
与细胞壁相关的结合蛋白 (CCaP1/2/3) 通过增强细胞延长,促进了阿拉比多普西斯的温暖温度下皮细胞生长. 这些蛋白调节细胞壁修饰和H+-ATPase活性,揭示了另一种热反应途径.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 阿拉比多普西斯塔利亚纳通过增加 hypocotyl 增长来适应温暖的温度.
- 这种生长主要由PIF4和影响细胞分裂的辅酶响应基因介导.
研究的目的:
- 为了研究细胞壁相关的结合蛋白 (CCaP1/2/3) 在热响应性 hypocotyl 生长中的作用.
- 阐明CCaP1/2/3介导的生长调节背后的分子机制.
主要方法:
- 使用阿拉比多普西斯突变物 (ccap1-1 ccap2-1 ccap3-1) 的遗传分析.
- 基因表达分析 (PIF4调节的基因,西洛葡萄糖内转糖酶/酶基因).
- 亚细胞局部化和蛋白质与蛋白质相互作用研究 (CCaP1/2/3与AHA1/2).
- 生物化学测定测量H+-ATPase活性和细胞壁组成.
主要成果:
- CCaP1/2/3 通过促进细胞延长,作为热响应性 hypocotyl 生长的积极调节者.
- 在CCaP1/2/3中发生的突变并没有影响PIF4调节的基因表达,但减少了西洛葡萄糖内转糖酶/酶基因表达.
- CCaP1/2/3 与等离子膜H+-ATPases AHA1/AHA2.2相互作用
- 温暖的温度增加了野生类型的H+-ATPase活性和细胞壁pectin/hemicellulose含量,但不是ccap1/2/3突变.
结论:
- CCaP1/2/3对阿拉比多普西斯的热响应性阴囊细胞生长至关重要.
- 这些蛋白质通过细胞壁的修饰来调节温暖温度适应的替代途径.
- CCaP1/2/3与H+-ATPases的相互作用是调节热应激下细胞壁特性的关键.
关键词:
在AHA1/AHA2中.在CCaP1/CCaP2/CCaP3中使用.细胞壁的修改是细胞壁的修改.催化体生长的低质体生长热形态生成 (thermorphogenesis) 是一种热形态生成.温暖的温度温暖的温度温暖的温度更多相关视频
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