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在BpPP2C-BpMADS11-BpERF61信号传递赋予干旱耐受性在贝图拉白

Huimin Zhao¹, Yaqi Jia¹, Yani Niu¹

¹State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China.

The New phytologist

|October 1, 2024

概括

木MADS盒蛋白BpMADS11通过与BpPP2C22相互作用来增强干旱耐受性,从而导致BpERF61的脱和增加表达,然后调节应激反应基因.

科学领域:

植物分子生物学植物分子生物学
无生物应激反应机制的反应机制.
植物中的基因调节.

背景情况:

MADS盒蛋白对于植物无生物应激耐受性至关重要.
涉及MADS盒蛋白的特定干旱反应途径尚未完全理解.
研究新的监管机制是提高作物弹性关键.

研究的目的:

为了阐明树MADS盒蛋白BpMADS11.11.的干旱耐受机制.
确定BpMADS11.11的关键蛋白相互作用和下游监管目标.
了解翻译后修改在BpMADS11介导的干旱反应中的作用.

主要方法:

利用免疫沉,西式涂抹和酵母两杂交试验来研究蛋白质相互作用.
采用酵母一混合和ChIP测试来研究DNA结合和基因调节.
进行RNA-seq和双露西法酶测试以分析基因表达和促进体活性.

主要成果:

在树中BpMADS11的过度表达增强了干旱耐受性;淘汰线显示耐受性降低.
BpMADS11与BpPP2C22相互作用,导致BpMADS11在干旱压力下脱.
脱化BpMADS11增加了DNA结合和上调的BpERF61表达,这也赋予了干旱耐受性.

结论:

通过BpPP2C22对BpMADS11的脱化对于激活BpERF61介导的干旱应激反应途径至关重要.
BpERF61在BpMADS11的下游作用,通过特定的DNA基因结合来调节与干旱相关的基因.
这项研究揭示了一种通过MADS盒蛋白调节增强植物干旱耐受性的新型分子机制.

关键词:

贝图拉 (Betula platyphylla) 是一个白类植物.在BpERF61中,在BpMADS11中 BpPP2C BpPP2C 是一个脱化脱化脱化耐旱耐受性耐旱耐受性

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