种子激光培养在Pb毒性下增强了乳的防御反应
Atefeh Banisharif1,2, Rayhaneh Amooaghaie3,4
1Plant Science Department, Faculty of Science, Shahrekord University, Shahrekord, Iran.
Scientific reports
|March 6, 2025
概括
用20分钟的- (He-Ne) 激光处理对药用植物种子进行化,通过增强抗氧化系统,提高了对 (Pb) 压力的耐受性. 然而,更长时间的激光照射证明对植物生长和应激反应有害.
科学领域:
- 植物科学 植物科学
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 重金属污染对药用植物的生产力和质量构成重大威胁.
- 已知- (He-Ne) 激光照射会影响种子发芽和植物应激耐受性,但其对重金属耐受性的影响尚未得到充分研究.
研究的目的:
- 为了研究- (He-Ne) 激光种子原始化的- (He-Ne) 激光种子对 (Silybum marianum L.) 在 (Pb) 压力下的抗氧化系统的影响.
- 为了确定He-Ne激光起始的最佳持续时间,以提高植物对重金属毒性的耐受性.
主要方法:
- 用He-Ne激光在不同时间段 (0,20分钟和40分钟) 进行化,然后暴露在不同度的 (Pb) (0,250和500 ppm) 中.
- 评估了关键的生理和生化参数,包括植物生长,叶绿素含量,相对含水量,过氧化 (H2O2),甲 (MDA),氨酸含量和抗氧化酶活动 (超氧化物转化酶,催化酶).
主要成果:
- 暴露显著减少了植物生长,叶绿素和水含量,同时增加了氧化应激标志物 (H2O2,MDA).
- 20分钟的He-Ne激光初始化通过改善生长,水含量和抗氧化剂防御,包括增加素和增强酶活动,显著减轻了毒性.
- 长时间的激光原料 (40分钟) 负面影响了植物生长,并加剧了氧化损伤,即使在非压力条件下.
结论:
- 最佳的He-Ne激光种子原料 (20分钟) 可以诱导乳的"压力记忆",增强其抗氧化系统并改善对植物毒性的耐受性.
- 河内激光初始化是一个有希望的,环保的策略,以加强药用植物对重金属污染的抵御力.
- 这种技术提供了一种新的方法,可以在受污染的环境中保持有价值的药用植物的生产力.
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