与损伤相关的分子模式受体PEPR1的内细胞分裂是依赖BAK1的
Lucas Alves Neubus Claus1,2, Fausto Andres Ortiz-Morea1,2,3,4, Shao-Li Yang1,2
1Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, 9052, Belgium.
Journal of integrative plant biology
|December 4, 2025
概括
在植物受损后,对PEP受体1 (PEPR1) 的内部化至关重要,Brassinosteroid Insensitive1-Associated Kinase1 (BAK1) 酸化非常重要. 这种BAK1功能对于PEPR1内细胞化和随后的Arabidopsis免疫信号传递至关重要.
科学领域:
- 植物免疫力 植物免疫力
- 分子植物科学 分子植物科学
- 蜂信号传输是如何进行的
背景情况:
- 阿拉比多普西斯·塔利亚纳的内源诱导 (Peps) 通过与PEPR1结合,触发天生的免疫力.
- PEPR1激活涉及与BAK1的异构化和随后的内化,但BAK1在这一过程中的作用尚不清楚.
研究的目的:
- 阐明BAK1在Pep1诱导的PEPR1内细胞分裂中的作用.
- 研究PEPR1内部化背后的分子机制.
主要方法:
- 研究了联体诱导的PEPR1内细胞化.
- 利用GFP插入性突变生成来创建一个部分功能性的GFP标记的BAK1.1.
- 分析了BAK1的C端尾酸化及其对免疫信号和内部化的影响.
主要成果:
- 联体诱导的PEPR1内细胞化需要PEPR1激酶活性和BAK1C端尾酸化.
- 酸化BAK1对于免疫信号和BAK1内部化都至关重要.
- 1诱导导致具有相似动态的BAK1和PEPR1的共同内细胞化.
结论:
- BAK1的功能,特别是其C端尾酸化,是PEPR1内部化的先决条件.
- 这项研究阐明了BAK1在Pep1触发的PEPR1内细胞解路径中的重要作用.
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