通过CsLOB1和CsbZIP40对CsNCED1-1的竞争性控制引发了对类果癌症的敏感性
Qin Long1, Lehuan Zhang1, Tianxiang Zhu1
1Citrus Research Institute, Southwest University, Chongqing, 400712, People's Republic of China.
The Plant journal : for cell and molecular biology
|October 20, 2024
概括
类病的易感性是由CsNCED1-1促进的,它破坏了植物的防御和改变了叶子细胞结构. 这种酶促进了病原体的殖民化和瘤的形成在类植物.
科学领域:
- 植物病理学 植物病理学
- 分子生物学分子生物学
- 园艺科学 园艺科学
背景情况:
- 类癌症 (CCD) 的发展依赖于瘤的形成.
- 之前,酸 (ABA) 应用已被证明有助于囊的形成,但机制尚不清楚.
- 9-cis-epoxycarotenoid二氧化酶 (NCED) 是ABA生物合成的关键.
研究的目的:
- 研究类植物CsNCED1-1在CCD耐药性中的作用.
- 阐明CsNCED1-1在类瘤病原体中的调节机制.
主要方法:
- 在Citrus sinensis中CsNCED1-1的过度表达和RNA干扰.
- 激素水平的分析 (ABA,JA,SA).
- 检查叶子形态和细胞结构.
- 对CsLOB1和CsbZIP40与CsNCED1-1.的相互作用进行促进剂结合试验.
主要成果:
- CsNCED1-1过度表达通过增加ABA,JA和减少SA增强了CCD易感性.
- 在过度表达的植物中观察到的叶子形态变化:叶子更短,口腔更小/更密,细胞不规则/增加.
- CsLOB1积极调节了CsNCED1-1转录,而CsbZIP40抑制了它.
- CsbZIP40和CsLOB1在竞争中与CsNCED1-1发起者结合,CsbZIP40更具竞争力.
结论:
- CsNCED1-1通过干扰JA/SA防御和改变杆细胞结构来促进类瘤的易感性.
- CsNCED1-1促进了病原体的殖民化和的形成.
- 这项研究揭示了CsNCED1-1作为类抗性和疾病发展的关键调节剂.
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