SlABCG9 作为雅斯蒙酸载体的功能 影响番茄对Botrytis cinerea的抗性
Ning Tao1, Yuhan Liu1, Ben Zhang2
1College of Food Science and Engineering, Shandong Agricultural University, 61 Daizong Street, Tai'an 271018 Shandong, China.
Journal of agricultural and food chemistry
|January 30, 2025
概括
番茄蛋白 SlABCG9 携带莉酸 (JA),增强水果对真菌病原体的抵抗力. 这一发现有助于理解植物防御机制,并提高作物对感染的抵抗力.
科学领域:
- 植物生物学 植物生物学
- 分子植物病理学 分子植物病理学
- 生物化学 生物化学
背景情况:
- 素酸 (JA) 对于植物对生物应激的防御至关重要.
- 对这些反应来说,贾斯蒙酸盐的细胞间运输是必不可少的.
- 特定的JA载体,特别是番茄 (Solanum lycopersicum L.),仍然在很大程度上未被确定.
研究的目的:
- 在番茄中识别和描述新的斯酸载体.
- 调查已识别的载体在植物防治Botrytis cinerea中的作用.
- 阐明SlaBCG9在调节植物免疫力和抗病能力方面的功能.
主要方法:
- 转录组分析以评估B. cinerea感染后SlaBCG9表达变化.
- 在Xenopus卵细胞和酵母细胞测试中,SLABCG9作为JA转运体的功能性特征.
- 对SLABCG9淘汰突变的分析,以评估其在JA含量,防御基因表达和疾病易感性方面的作用.
主要成果:
- 在B. cinerea感染后,西红中的SlaBCG9表达显著上调.
- 证实SlaBCG9可以作为莉酸流入输送器.
- SlABCG9淘汰突变体表现出降低的JA水平,抑制了防御基因PDF1.2表达,降低了抗氧化活性,并增加了对B. cinerea的敏感性.
结论:
- SlABCG9是一种血局部化的JA转运体,在番茄果对Botrytis cinerea的抗性中起着关键作用.
- 这项研究增强了我们对植物生物应激反应中JA传输和信号的理解.
- 这些发现为通过遗传或育种策略改善作物抵抗病原体感染提供了潜在的目标.
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