通过和氧化物纳米颗粒在米中的盐度应激改善
Monalisha Mishra1, Shadma Afzal2, Ranjana Yadav1
1Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, India.
Scientific reports
|July 29, 2025
概括
绿色合成的 (Se-NPs) 和氧化 (ZnO-NPs) 纳米颗粒有效地减轻了大米植物的盐度压力. 联合应用显著改善了大米的生长,产量和营养价值,为粮食安全提供了可持续的解决方案.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 纳米技术纳米技术
背景情况:
- 盐度压力是限制大米 (Oryza sativa L.) 生产力的主要非生物因素,并威胁到全球粮食安全.
- 氧化应激,以高反应性氧物种 (ROS),甲和素为特征,在盐水条件下显著损害了米的生长和产量.
研究的目的:
- 研究绿色合成的 (Se-NPs) 和氧化 (ZnO-NPs) 纳米颗粒对受到盐度压力的水植物的改善作用.
- 评估Se-NPs和ZnO-NPs对米生理,生化和产量参数的单独和联合影响.
主要方法:
- 米植物遭受了盐度压力.
- 治疗组接受了绿色合成的Se-NPs和ZnO-NPs的单独或联合应用.
- 分析了植物生长,产量参数,氧化应激标志物 (氨酸,氨酸),ROS水平,抗氧化酶活动和矿物质含量.
主要成果:
- 盐度压力显著降低了大米植物的高度,根长,工数,粒数和粒重,同时增加了氧化应激标志物.
- 通过增强抗氧化酶活性 (超氧化物脱氧化酶,催化酶,酸盐过氧化酶,过氧化酶) 和减少脂质过氧化,Se-NPs和ZnO-NPs治疗显著减轻了盐度诱导的损伤.
- 结合Se-NPs和ZnO-NPs的应用证明了卓越的疗效,恢复生理参数,增加植物高度 (46.32%),根长度 (70.53%) 和每颗粒 (100.7%),并增强颗粒中的矿物积累 (Zn,Se,Fe).
结论:
- 绿色合成的Se-NPs和ZnO-NPs,尤其是在组合中,代表了一种有希望的和环保的策略,以提高大米对度压力的耐受性.
- 纳米颗粒的应用不仅减轻了产量损失,而且还有助于大米粒的生物强化,在盐水条件下提高了营养价值.
- 这种方法提供了增加作物弹性和提高度影响环境中的食品质量的双重好处.
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