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生物合成的纳米颗粒作为有效的工具来对抗大米 (Oryza sativa L.) 中的土壤金属应力

Heping Shang¹, Chunyang Li¹, Zeyu Cai¹

¹Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China.

|July 2, 2024

概括

阿洛韦拉提取物凝生物合成的纳米颗粒 (AVGE Se NPs) 显著促进的生长,减少的毒性. 这些纳米粒子增强了植物防御通路和有益的微生物群落,改善了受污染的土壤中的食品安全.

科学领域:

农业科学农业科学
环境科学环境科学
纳米技术纳米技术

背景情况:

纳米技术为农业面临的诸如重金属压力等挑战提供了解决方案.
土壤中的 (Cd) 污染对作物生产和食品安全构成重大威胁.
纳米粒子 (SeNP) 在减轻植物中的非生物压力方面表现有前途.

研究的目的:

调查草提取物凝生物合成纳米颗粒 (AVGE Se NPs) 减轻大米 (Oryza sativa L.) 中引起的毒性.
评估AVGE Se NP对大米生长,压力信号通路和压力下的内菌群体组成的影响.

主要方法:

米苗在水培和土壤系统中暴露于.
治疗包括AVGE Se NPs,化学合成的Se NPs和化 (NaSeO3).
分析了生长参数,基因表达 (转录分析) 和内植物群体组成.

主要成果:

与Cd对照和赤裸的Se NP相比,AVGE Se NP显著增加了新鲜根生物量.
AVGE Se NPs激活了压力信号通路,包括谷氨代谢,烯胺生物合成和吉伯酸 (GA) 生物合成.
AVGE Se NPs恢复了内菌群体的组成,显著增加了Azospirillum在根,芽和树根球中的丰富性.

结论:

AVGE Se NP显示出显著的潜力,可以增强的生长,并减轻引起的毒性.
AVGE SeNP调节植物防御机制和有益的微生物相互作用.
这种纳米技术支持的策略为改善污染的农业土壤中的食品安全提供了一个有希望的方法.

关键词:

草提取物是凝生物合成的Se NPs.和是最重要的元素.微生物社区的微生物社区.米米饭米饭米饭米饭.转录分析转录分析

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