外源性黑色素调节干旱压力下的多边形的生理反应和活性成分水平
Ru-Jie Shi1, Ming-Yan Ye1, Yue Liu1
1College of Food and Biology Engineering, Chongqing Three Gorges University, Chongqing 404120, China.
Plants (Basel, Switzerland)
|June 10, 2023
概括
外源性黑激素 (MT) 的应用增强了干旱压力的Polygonum cuspidatum生长,活性成分和抗氧化活性. 这项研究表明MT是一种有前途的生物刺激剂,可以提高药用植物的弹性.
科学领域:
- 植物生理学 植物生理学
- 生物化学 生物化学
- 农业科学 农业科学
背景情况:
- 多角 (Polygonum cuspidatum) 是一种重要的药用植物,富含白醇和聚达丁.
- 干旱压力显著抑制了P. cuspidatum的生长和活性成分度.
研究的目的:
- 为了研究外源性黑激素 (MT) 在干旱压力下对P. cuspidatum的影响.
- 分析MT对生物质,水潜力,气体交换,抗氧化酶,活性成分和基因表达的影响.
主要方法:
- 苗木经过了12周的干旱处理,有或没有100毫米氨酸.
- 测量包括生物质,水潜力,气体交换,酶活动,活性成分水平和PCRS基因表达.
主要成果:
- 黑素的应用改善了生物质,水潜力和气体交换,在水分充足和干旱的条件下.
- MT增加了抗氧化酶的活性,以及松醇,埃莫丁,物理,白醇和聚达丁的水平.
- 黑色素上调调 PcRS 基因表达,与白醇水平呈正相关.
结论:
- 外源性黑激素作为生物刺激剂,增强P. cuspidatum的生长和耐压力.
- MT的应用改善了P. cuspidatum的活性成分积累和抗氧化能力.
- 黑色素提供了一种策略,用于抗旱的P. cuspidatum种植.
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