CmDOF18通过激活氧化还原酶系统来积极调节香木里叶的盐分耐受性
Peiling Li1, Tingting Fang1, Xinran Chong2
1College of Horticulture, Xinyang Agriculture and Forestry University, Xinyang, 464000, China.
BMC plant biology
|April 2, 2024
概括
花植物具有增强的CmDOF18表达,表现出改善的盐耐受性. 这种与一只手指 (DOF) 基因结合的DNA过度表达增加了抗氧化活性和压力标志物,有助于在盐水条件下生存.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物压力生理学 植物压力生理学
- 农业科学 农业科学
背景情况:
- 花是一种全球重要的切花作物,易受盐分的影响.
- 一指结合DNA (DOF) 转录因子是植物生物过程的关键调节者.
- 在花对盐应激反应中CmDOF18的特定作用以前是未知的.
研究的目的:
- 为了克隆和表征CmDOF18基因从花 morifolium.
- 调查CmDOF18在赋予盐分耐受性的作用.
- 阐明CmDOF18介导的盐应激反应背后的分子机制.
主要方法:
- 在盐度压力下基因克隆和表达分析.
- 在洋表皮细胞中的亚细胞定位和在酵母中的转录激活试验.
- 产生和分析CmDOF18过度表达和基因沉默的转基因花植物.
主要成果:
- 编码具有DOF域的291氨基酸蛋白的CmDOF18,由盐度上调.
- 过度表达CmDOF18增强了盐分耐受性,由减少的甲基和电解质导电性以及增加的プロ林,叶绿素,超氧化物脱酶和过氧化酶水平证明.
- 与过度表达线相比,对CmDOF18的基因沉默导致盐分耐受性降低,对测量的生理和生化参数产生相反的影响.
- 过度表达CmDOF18导致氧化还原酶基因表达增加,而沉默则减少了它.
结论:
- CmDOF18在调节花对盐度压力的反应方面发挥着重要作用.
- 该基因在盐分耐受性中的功能可能涉及氧化还原酶活性的调节.
- CmDOF18代表了开发耐盐花品种的潜在目标.
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