花开和压力的调节器操纵了Brachypodium中的口腔密度和尺寸
Sheng Ying1, Wolf-Rüdiger Scheible1
1Noble Research Institute LLC, Ardmore, Oklahoma, USA.
Physiologia plantarum
|October 26, 2023
概括
布拉基波底RFS基因调节口腔密度和大小,增强植物生物质和水含量. 这一发现为通过基因工程开发适应气候变化的作物提供了新的途径.
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 农作物科学 农作物科学
背景情况:
- 胃膜调节气体交换和水损失,环境因素影响它们的密度和大小.
- 虽然口腔发育已被理解,但压力诱导的口腔特征变化的调节者仍然在很大程度上是未知的.
- 受压力诱导的Brachypodium RFS基因通过减少水损失来增强干旱耐受性.
研究的目的:
- 研究Brachypodium RFS (BdRFS) 在调节口腔发育和植物水关系中的作用.
- 确定BdRFS是否起到口腔密度 (SD) 和口腔大小 (SS) 的应力反应调节者的作用.
主要方法:
- 产生Brachypodium RFS过度表达 (OX) 线和CRISPR/Cas9淘汰 (KO) 突变的基因.
- 分析OX和KO线中的口腔密度,口腔大小,生物质和植物水含量.
- 反转录-定量聚合酶链反应 (RT-qPCR) 来评估基因表达,包括BdICE1.
主要成果:
- 不管土壤和水的状况如何,BdRFS OX线路显示SD减少,SS增加.
- 与野生类型相比,BdRFS OX线具有显著增加的生物质和植物水含量.
- BdRFS KO突变体表现出相反的口腔特征和生物质变化,具有改变的BdICE1表达.
结论:
- 布拉基波底RFS被确定为口腔密度和尺寸的新型调节器.
- RFS在植物生物质和水含量调节方面发挥着重要作用.
- RFS是基因工程的一个有希望的候选基因,用于提高作物对气候变化的抵抗力.
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