通过营养诱导的内皮分化的可塑性来适应根功能
Marie Barberon1, Joop Engelbertus Martinus Vermeer1, Damien De Bellis2
1Department of Plant Molecular Biology, University of Lausanne, 1015 Lausanne, Switzerland.
Cell
|January 19, 2016
概括
植物根通过调节内皮的亚体化,一个涉及酸和乙烯的过程来适应营养压力. 这使得根可以控制营养吸收和维持平衡.
科学领域:
- 植物生物学
- 植物生理学
- 分子生物学
背景情况:
- 植物根必须选择地从土壤中吸收必需的矿物质,需要专门的细胞结构.
- 植物内皮,其卡斯帕皮条和皮层,作为扩散屏障.
- 据认为二次内皮分化成一个分化后的保护层会改变吸收功能.
研究的目的:
- 调查内皮亚体在植物营养稳定中的作用.
- 为了确定对营养应激的反应中调节分离的信号通路.
- 探索潜化的动态调节和生理相关性.
主要方法:
- 在各种营养应激条件下分析子化模式.
- 使用酸和乙烯的激素治疗.
- 在对乙烯的反应中对苏贝林降解的评估.
- 生理测量,以将分化变化与营养吸收联系起来.
主要成果:
- 内皮亚化是由广泛的营养应激诱导的.
- 酸和乙烯是压力诱导的关键介质.
- 乙烯触发了选择性降解,表明了动态调节.
- 转化变化是适应性的,对营养稳定至关重要.
结论:
- 植物内皮根据营养的可用性来动态调节子皮化.
- 涉及酸和乙烯控制的激素信号通路.
- 内皮亚体在维持根营养的稳定性方面起着至关重要的作用.
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