
Cell 突破!董欣年团队揭示植物免疫反应调控新机制:NPR1形成 …
该研究揭示了在植物免疫反应中NPR1通过形成凝聚体促进细胞存活的分子机制。 该研究发现,NPR1在SA作用下形成NPR1凝聚体 (salicylic acid-induced NPR1 condensates, SINCs)。SINCs富含应激响应蛋白,包括NB-NLR类蛋白受体、氧化和DNA损伤响应蛋白、泛素化相关蛋白 …
NPR1, a key immune regulator for plant survival under biotic and ...
2024年1月4日 · Nonexpressor of pathogenesis-related genes 1 (NPR1) was discovered in Arabidopsis as an activator of salicylic acid (SA)-mediated immune responses nearly 30 years ago.
NPR1, a key immune regulator for plant survival under biotic and ...
2024年1月4日 · Nonexpressor of pathogenesis-related genes 1 (NPR1) was discovered in Arabidopsis as an activator of salicylic acid (SA)-mediated immune responses nearly 30 years ago. How NPR1 confers resistance against a variety of pathogens and stresses has been extensively studied; however, only in recent years …
Diverse Roles of the Salicylic Acid Receptors NPR1 and NPR3
The plant defense hormone salicylic acid (SA) is perceived by two classes of receptors, NPR1 and NPR3/NPR4. They function in two parallel pathways to regulate SA-induced defense gene expression. To better understand the roles of the SA receptors in plant defense, we systematically analyzed their con …
The Arabidopsis NPR1 protein is a receptor for the plant defense ...
2012年6月28日 · Salicylic acid (SA) is an essential hormone in plant immunity, but its receptor has remained elusive for decades. The transcriptional coregulator NPR1 is central to the activation of SA-dependent defense genes, and we previously found that Cys (521) and Cys (529) of Arabidopsis NPR1's transactivation domain are critical for coactivator function.
A plant RNA virus inhibits NPR1 sumoylation and subverts NPR1 …
2023年6月16日 · NPR1-knockout or NPR1-knockdown plants, SA biogenesis-deficient mutants, and transgenic plants expressing a salicylate hydroxylase gene (NahG) all show enhanced susceptibility to infection by...
Mol Plant | 杜克大学董欣年教授团队发现水杨酸信号转导枢纽的新 …
2024年10月14日 · 为了进一步探索NPR1的转录靶标,研究者使用了greenCUT&RUN技术对SA诱导下的NPR1进行分析。 结果表明,NPR1主要结合在靶基因的启动子区域,且富集在TGA结合位点上(图2)。
Plant Cell | 张跃林团队揭示水杨酸受体NPR1和NPR3/4在植物免疫 …
2020年10月13日 · 该研究发现,NPR1和NPR3/4可以通过调控NHP合成相关基因ALD1,SARD4及FMO1的表达控制NHP的积累,从而影响SAR。 此外,病原体模式分子引发的PTI和效应分子引发的ETI在npr1-1 npr4-4D突变体中也大幅度减弱,表明SA受体在调控PTI和ETI方面也有重要贡献。 有趣的是,与SA 合成缺陷突变体(sid2-1)相比,npr1-1 npr4-4D 中PTI 和ETI 的减弱更为显著,表明sid2-1 中残留SA 的感知也有助于植物免疫。 此外,研究人员还发 …
The Arabidopsis NPR1 Protein Is a Receptor for the Plant Defense ...
2012年6月28日 · Salicylic acid (SA) is an essential hormone in plant immunity, but its receptor has remained elusive for decades. The transcriptional coregulator NPR1 is central to the activation of SA-dependent defense genes, and we previously found that Cys 521 and Cys 529 of Arabidopsis NPR1's transactivation domain are critical for coactivator function.
Molecular Cell 董欣年院士团队综述植物在生物和非生物胁迫下生 …
SA 信号传递需要病原相关(PR)基因 1 的非表达子(NPR1),NPR1 最早是在模式植物拟南芥中发现的。 与拟南芥 NPR1 在植物防御中的核心作用相一致,在包括许多农作物在内的多种植物物种中,过量表达拟南芥 NPR1 可增强对各种病原体的抵抗力。 这就提出了以下问题: (1) NPR1 的内在特性是什么,使其能够保护植物抵御如此广泛的胁迫? (2) 我们如何利用 NPR1 来设计作物的广谱抗病性,以替代传统的病原体特异性抗性? 2023年12月15日,国际权威学术期刊 …
- 某些结果已被删除