在低温应力下对Solanum lycopersicum进行外源应用的甲基斯蒙酸度的影响研究
Nadia Gul1, Khalid Z Masoodi2, Salika Ramazan3
1Department of Biotechnology, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, 185234, India.
BMC plant biology
|September 18, 2023
概括
甲基斯酸盐 (MeJA) 通过改善抗氧化活性和光合作用,有效地减少番茄植物的寒冷压力. 最佳的MeJA度 (10μM) 可减轻对植物生长和排毒系统的负面影响.
科学领域:
- 植物生理学 植物生理学
- 压力生物学 压力生物学
- 生物化学 生物化学
背景情况:
- 寒冷压力显著影响Solanum lycopersicum (西红) 的生长和产量.
- 甲基斯酸盐 (MeJA) 是一种植物激素,在抗压力方面具有潜在的作用.
- 了解MeJA的疗效需要在各种压力条件下进行剂量依赖性分析.
研究的目的:
- 评估甲基斯酸盐 (MeJA) 对Solanum lycopersicum低温 (LT) 应激的保护能力.
- 为了确定MeJA的最佳度以减轻LT引起的损害.
- 评估在LT压力下对MeJA应用的生理和生化反应.
主要方法:
- 索兰姆 (Solanum lycopersicum) 的植物受到低温 (LT) 压力.
- 在LT暴露之前,期间和之后,通过叶子喷雾以三种度 (0.5μM,10μM,15μM) 外源地应用MeJA.
- 测量了包括氧化应激标志物,生长特征,抗氧化酶活性和光合作用效率在内的生理参数.
主要成果:
- 在LT条件下,MeJA补充剂显著降低了氧化应激标志物.
- 抗氧化酶活性和光合作用参数通过MeJA治疗得到增强.
- 10微米的MeJA (J2) 度显示出最显著的保护作用,表明它是最佳剂量.
结论:
- 外源应用的MeJA有效地减轻了在Solanum lycopersicum中LT压力的不良影响.
- 10μM MeJA (J2) 的最佳度是增强植物弹性和保护排毒系统的有希望的策略.
- 这项研究提供了首次查最佳的MeJA剂量用于番茄的LT应激耐受性.
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