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Padinjarakavil Soumya¹, B Gayathri¹, K Jayachandran¹

¹School of Biosciences, Mahatma Gandhi University, Kottayam, 686560 Kerala India.

|August 18, 2025

概括

基于大米的碳量子点 (RCQD) 显著提高了大米种子的发芽,生长和应激耐受性. 这些纳米颗粒增强营养吸收并保护疾病,为作物改进提供了一种新的方法.

科学领域:

农业科学农业科学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

米种植面临着干旱和病原体带来的生物压力等非生物压力的挑战.
碳量子点 (CQD) 是新兴的纳米材料,由于其独特的特性,在农业中具有潜在的应用.
开发可持续和有效的农业投入对粮食安全至关重要.

研究的目的:

为了合成和描述基于大米的碳量子点 (RCQD).
在正常和干旱条件下评估RCQDs对大米种子发芽,苗木生长和生理反应的影响.
研究RCQDs在增强大米对生物压力的抵抗力和改善营养吸收方面的作用.

主要方法:

使用TEM,SEM,FTIR,UV-Vis和XRD等技术合成和描述RCQD.
评估使用RCQDs处理的米的种子发芽,幼苗活力和生长参数.
在干旱压力下评估RCQD处理的大米中的叶绿素含量,抗氧化活性和营养调动.
使用脱落的叶子试验测试RCQD对病原体*Xanthomonas oryzae*和*Rhizoctonia solani*的疗效.

主要成果:

合成的RCQD是球形 (5nm),无形,表现出强烈的光发光,并具有含氧的功能组.
经过RCQD治疗,大米种子的发芽,幼苗的活力和整体生长显著提升.
在干旱压力下,RCQD改善了芽和根的长度,叶绿素含量和抗氧化活性.
RCQDs促进了大米中宏观营养素的调动和微量营养素的吸收 (Na,Zn,Fe).
RCQD 赋予了对生物应激的耐药性,由 *X. oryzae* 和 *R. solani* 的病变发展减少证明.

结论:

来自大米的RCQD显示了对大米植物的显著生物刺激作用.
RCQDs增强了对非生物 (干旱) 和生物 (病原体) 压力的米耐受性.
应用RCQD提供了一个有前途的策略,通过多机制效应来提高水产量和弹性.

关键词:

抗氧化剂活性抗氧化剂活性生物控制活动活动.耐旱耐受性耐旱耐受性耐旱耐受性绿色合成是一种绿色合成.植物生长促进性质的植物生长促进性质.米碳量子点 (RCQD) 是指米中的碳量子点.

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