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在DEFENSE NO DEATH 1 (DND1) 沉默土豆植物的叶子中发生的转录组,荷尔蒙和二次代谢物变化
Zsófia Bánfalvi1,2, Balázs Kalapos3, Kamirán Áron Hamow3,4
1Department of Plant Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Gödöllő, Hungary. banfalvi.zsofia@uni-mate.hu.
Scientific reports
|September 4, 2024
概括
在土豆中抑制DEFENSE NO DEATH 1 (DND1) 增强了抗病能力,但降低了生长. 这是由于酸和构成性防御反应的升高而发生的,影响了植物的发育.
科学领域:
- 植物分子生物学 植物分子生物学
- 植物病理学 植物病理学
- 生物化学 生物化学
背景情况:
- 防御无死亡1 (DND1) 是一个循环核酸门离子通道.
- 马 (Solanum tuberosum L.) 中的DND1沉默赋予了对晚期虫害等疾病的抵抗力.
- 然而,DND1的下调还会导致植物生长减少和叶子亡.
研究的目的:
- 调查土豆中DND1降低调节的类效应背后的分子机制.
- 分析DND1-沉默的土豆系中的代谢物和转录组变化.
主要方法:
- 对DND1静音化土豆线的代谢物分析.
- 对DND1沉默的土豆线的转录组分析.
- 基因表达概况. 基因表达概况.
主要成果:
- 沙酸,斯酸和酸水平显著增加.
- 改变1866基因,包括那些参与二次代谢物合成的基因.
- 疾病耐药性基因,病原性相关基因,WRKY和NAC转录因子的上调;bHLHs的下调.
结论:
- DND1下调调控触发了土豆厂的宪法防御状态.
- 这种持续的防御激活与植物生长减少和叶子死有关.
- WRKY和NAC转录因子在调解这些转录组变化方面发挥着关键作用.
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