BAG2通过调节番茄中的热冲击蛋白来调节HsfA1a诱导的热耐受性
Mingming He1, Jiating Wu1, Qingshen Cui1
1College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
概括
HsfA1a-BAG2模块通过调节热冲击蛋白 (HSP) 来增强番茄的耐热性. 这涉及HsfA1a激活BAG2表达并与BAG2和BAG5b形成复合体,以提高HSP70和HSP90水平.
科学领域:
- 植物分子生物学 植物分子生物学
- 压力生理学 压力生理学
- 植物遗传学 植物遗传学
背景情况:
- 热冲击转录因子 (Hsfs) 和Bcl-2-关联的乙原蛋白 (BAG) 对植物热应激反应至关重要.
- 在植物中,Hsfs和BAG之间的精确调节机制,特别是关于耐热性,仍然在很大程度上未被阐明.
研究的目的:
- 研究HsfA1a-BAG2模块在调节番茄耐热性的作用.
- 阐明Hsfs和BAG蛋白相互作用以调节热冲击蛋白 (HSPs) 在热应激下的分子机制.
主要方法:
- 使用了酵母单杂交试验,双化酶试验,电泳性移动性转移试验 (EMSA) 和与qPCR (ChIP-qPCR) 结合的染色体免疫沉.
- 在体外和体外相互作用研究中,使用各种遗传操纵,如番茄植物的过度表达,突变,淘汰和沉默等方法进行了实验.
主要成果:
- HsfA1a直接激活BAG2表达,其过度表达增强番茄的耐热性,增加HSP70,HSP90和BAG2水平.
- BAG2 与 HsfA1a 和 BAG5b 相互作用; BAG5b 促进 BAG2-HsfA1a 相互作用,促进 HsfA1a 转录激活 HSP70 和 HSP90.
- 过度表达BAG2或BAG5b会改善热耐受性和HSP基因表达,而它们的淘汰或沉默会减少这些效应,即使在HSfA1a过度表达的线条中也是如此.
结论:
- HsfA1a-BAG2模块是番茄耐热性的关键调节器,通过转录激活BAG2和与BAG2和BAG5b.complex形成复合物来运作.
- 这种复合物最终会诱导高温体的表达,为控制工厂热应激下高温体的监管网络提供了新的洞察力.
关键词:
Bcl-2相关的亚原体在HSP的基础上,HSP是HSP.索拉 (Solanum lycopersicum) L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L 这一篇文章中,我们已经看到了一些关于我们这个地方的文章,但我们已经看到了一些关于我们这个地方的文章.高温的高温的高温的高温转录条例 转录条例 转录条例 转录条例
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