亚酸信号调节了植物细胞间通信的初级质体密度
Chiyo Jinno1, Ken Fujisaki2, Izumi Yotsui2
1Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.
Science advances
|May 7, 2025
概括
沉酸 (ABA) 降低了的等离子体密度 Physcomitrium patens,由ABA信号元件和转录因子ABA-INSENSITIVE 5调节. 这表明ABA对植物细胞通信的控制得到保护.
科学领域:
- 植物生物学 植物生物学
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 细胞间的通信对于多细胞生物来说至关重要.
- 形体 (PD) 是植物特有的通道,促进这种沟通,但它们的形成和调节是不太了解的.
- 酸 (ABA) 是一种关键的植物激素,参与植物应激反应.
研究的目的:
- 为了研究酸 (ABA) 在调节 (Physcomitrium patens) 中等离子体 (PD) 密度中的作用.
- 为了确定参与PD调节的ABA信号通路的分子组成部分.
- 探索陆地植物中ABA介导的PD控制的进化保护.
主要方法:
- 在 Physcomitrium patens.上对酸 (ABA) 的外源性应用.
- 对PD密度的分析.
- 研究ABA信号通路的组件和转录因子 (ABA-INSENSITIVE 5和ABA-INSENSITIVE 3).
主要成果:
- 外源的ABA供应显著降低了P. patens.中的初级PD密度.
- 这种减少取决于核心ABA信号通路组件.
- 转录因子ABA-INSENSITIVE 5对于ABA介导的PD密度调节至关重要,而ABA-INSENSITIVE 3则不是.
结论:
- 在P. patens中,ABA诱导的PD密度降低是由ABA响应因子介导的,特别是ABA-INSENSITIVE 5.
- 通过ABA控制PD生物发生和透性似乎是陆地植物中保存的机制.
- 这种保存的机制对植物细胞之间的通信和适应环境压力有重大影响.
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