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铁通过调节压力大米 (Oryza sativa L.) 中的OsWRKY71来重新编程根系结构

Zainab Mirza¹, Meetu Gupta²

¹Ecotoxicogenomics Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India.

Plant molecular biology

|February 7, 2024

概括

铁和相互作用,影响大米根的发育. 用添加铁可以通过调节OsWRKY71基因来改善根结构,这可能是通过gibberellin路径.

科学领域:

植物科学植物科学
分子生物学分子生物学
农业科学农业科学

背景情况:

铁 (Fe) 作为根部发育中的信号分子.
(As) 对大米根结构和生长产生负面影响.
根系统架构 (RSA) 在As压力下涉及WRKY转录因子 (TFs).

研究的目的:

在As压力下研究RSA的Fe-依赖动态.
了解OsWRKY71在Fe介导的RSA变化中的作用.
阐明 gibberellin 途径在 As 压力大米中的参与.

主要方法:

根的水培培养暴露于As和Fe.
分析根形态,解剖学和生化参数的分析.
对OsWRKY71的基因表达分析和分子对接.

主要成果:

As+Fe处理改善了Ratna和Lalat品种的水根形态和解剖学.
在单独Fe和As+Fe条件下,OsWRKY71的表达得到了上调.
与拉拉特品种相比,拉拉特品种表现出增强的OsWRKY71诱导,使RSA发展更好.
OsWRKY71 含有对柏林素有反应的元素,并与SLR1.1相互作用.

结论:

Fe通过通过 gibberellin 途径调节 OsWRKY71 来影响 As 压力大米中的 RSA.
OsWRKY71在调解Fe对A压力下的根部发育的有益影响方面发挥着至关重要的作用.
米品种之间的不同反应突出显示了As耐受机制的遗传变异.

关键词:

亚是一种.这是Gibberellin.铁铁铁是什么意思铁铁铁在 OsWRKY71 里.根系统架构根系统架构

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