对Populus talassica × Populus euphratica对叶子损伤的短期反应的转录组和代谢组分析
Mengxu Su1, Zhanjiang Han1, Ying Liu1
1State Key Laboratory Incubation Base for Conservation and Utilization of Bio-Resource in Tarim Basin, College of Life Science and Technology, Tarim University, Alar 843300, China.
International journal of molecular sciences
|June 26, 2025
概括
在Populus中,机械叶损伤会引发显著的基因和代谢物变化. 关键的防御途径涉及植物-病原体相互作用和MAPK信号传递,而像萨库拉尼丁和皮诺森布林这样的黄类药物在Populus防御反应中起着至关重要的作用.
科学领域:
- 植物科学 植物科学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 植物在机械损伤时激活了涉及初级和二级代谢物的防御机制.
- 有限的研究存在于木质植物叶损伤反应的组合转录和代谢学.
研究的目的:
- 研究Populus talassica × Populus euphratica在分子层面上的叶子损伤防御机制.
- 分析机械叶子损伤后基因表达和二次代谢物的变化.
主要方法:
- 转录组分析以确定差异表达基因 (DEG).
- 二次代谢组分析以确定差异性二次代谢物 (DSM).
- 进行KEGG通路丰富分析以确定关键的生物通路.
主要成果:
- 在24小时后,在受损的Populus叶子中确定了4078个DEG和30个DSM.
- 植物病原体相互作用和MAPK信号通路是早期重要的防御机制.
- 黄类生物合成基因丰富,其中萨库拉尼丁和皮诺森布林被确定为关键代谢物.
结论:
- 塔拉西卡 (Populus talassica × Populus euphratica) 采用复杂的分子策略,涉及基因调节和特定代谢物的叶子损伤防御.
- WRKY转录因子和黄路径是植物反应的核心.
- 结果为可持续管理和预测人造Populus森林提供了洞察力.
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