一个增强剂-促进剂-转录因子模块通过限制卡马莱克辛生物合成来调节植物免疫平衡
Ying Zhang1, Meng Tang1, Yi Zhang2
1National Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Hubei Hongshan Laboratory, Wuhan, Hubei 430070, China.
Molecular plant
|December 4, 2024
概括
科学家们发现了一种新的植物基因调节剂,CORE PATTERN-INDUCED ENHANCER 35 (CPIE35),通过控制WRKY15表达来微调抗真菌防御,保持免疫平衡.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物免疫力 植物免疫力
- 基因规则 基因规则
背景情况:
- 植物免疫反应需要精确控制免疫基因表达.
- 增强剂是关键的cis-regulatory元素,但它们在植物免疫中的作用尚不清楚.
研究的目的:
- 识别和描述涉及植物免疫反应的新型 cis 调节元件.
- 阐明增强剂调节植物抗真菌抵抗的分子机制.
主要方法:
- 通过致病诱导激活的新增强剂CPIE35的鉴定.
- 分析CPIE35在调节WRKY15表达中的作用及其下游目标 (PAD3,GSTU4).
- 研究CPIE35-WRKY15模块在Brassicaceae物种中的进化保护和功能作用.
主要成果:
- 在病原体攻击时,CPIE35迅速激活,并负面调节抗真菌耐药性.
- CPIE35通过染色体循环激活 WRKY15 转录,这取决于 WRKY18/40/60,WRKY33 和 MYC2.2.
- WRKY15抑制了PAD3和GSTU4,减少了卡马莱克辛的合成和耐药性.
- CPIE35-WRKY15调节模块在Brassica napus中保存,并且具有类似的功能.
结论:
- 一种新型增强剂,CPIE35,在调节植物抗真菌免疫力方面发挥着至关重要的作用.
- 涉及CPIE35和WRKY15的增强剂-促进剂-转录因子机制对于免疫恒温至关重要.
- 增强剂是植物免疫基因表达的重要和保守的调节剂.
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