蛋白质酸化协调了阿拉比多普西斯植物适应环境pH值的过程
Dharmesh Jain1, Wolfgang Schmidt2
1Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, Academia Sinica and National Chung-Hsing University, Taipei, Taiwan; Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung, Taiwan; Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan.
Molecular & cellular proteomics : MCP
|November 24, 2023
概括
环境pH值显著影响植物的生存. 这项研究揭示了广泛的pH依赖蛋白质调节,包括新的酸化位,影响了Arabidopsis thaliana的营养物质运输和根部发育.
科学领域:
- 植物生理学 植物生理学
- 分子生物学分子生物学
- 生物化学 生化学
背景情况:
- 环境pH (pHe) 对于植物的生存和健康至关重要.
- 了解pH稳态机制对于植物适应至关重要.
- 以前的研究还没有完全阐明蛋白质和蛋白质对pH压力的反应.
研究的目的:
- 为了全面地图pHe-响应蛋白质和酸化地点在Arabidopsis thaliana.
- 研究环境pH对离子运输,根部发育和细胞过程的影响.
- 发现新型的翻译后修饰,调节植物对pH值波动的反应.
主要方法:
- 在Arabidopsis thaliana上使用了蛋白质和蛋白质的方法.
- 植物经过过时的酸性和性环境pH条件.
- 在各种组织中分析了蛋白质丰度和酸化模式的变化.
主要成果:
- 确定了许多pHe-依赖的位,表明了广泛的翻译后调节.
- 在pHe的反应中观察到H+的送和营养物质 (酸盐和) 的运输变化.
- 已证明抑制的根延长和改变的根毛发育,对NRT2.1.有作用.
- 发现pHe依赖的铁运输调节 (VTL5) 和ABC转运体PDR7活性.
- 揭示了根和芽的显著蛋白质和蛋白质变化,包括TPLATE复合体参与内细胞分裂.
结论:
- 环境pH触发了植物广泛的翻译后修饰和蛋白质组调整.
- 运输和根部发育受到pHe的显著调节,NRT2.1发挥着关键作用.
- 植物对pH压力的反应涉及离子稳态,营养物质的可用性和细胞贩运通路的复杂调节,延伸到根组织之外.
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