和铁纳米颗粒通过提高氧化耐受性和最大限度地减少Pb吸收来保护大米免受 (Pb) 压力
Fozia Ghouri1,2,3, Samreen Sarwar4, Lixia Sun1,2,3
1State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, 510642, China.
Scientific reports
|March 13, 2024
概括
铁和纳米颗粒通过减少吸收和增强抗氧化剂防御,有效地减轻大米植物的毒性. 这种协同方法对恢复污染的土壤和保护农作物充满希望.
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:
- (Pb) 对大米植物的发育和生长具有显著的毒性.
- 纳米粒子 (NPs) 为植物中的重金属压力提供了潜在的补救策略.
研究的目的:
- 研究铁 (Fe) 和 (Si) 纳米颗粒减轻米苗中Pb毒性的机制.
- 评估Fe-NPs和Si-NPs对Pb压力大米的联合作用.
主要方法:
- 苗被用 (Pb) 和不同度的铁纳米粒子 (Fe-NPs) 和纳米粒子 (Si-NPs) 处理,单独和组合应用.
- 测量了生长参数,Pb转位和抗氧化酶活性.
主要成果:
- 的毒性抑制了大米的生长,降低了乙酸盐含量,并使转移到地表部分.
- Fe-NPs和Si-NPs的协同应用使植物组织中的Pb含量减少了27%.
- 联合Fe-NPs和Si-NPs治疗改善了芽和根的生长,显著增加了抗氧化酶活性 (SOD,POD,CAT,GSH).
结论:
- 协同应用Si-NPs和Fe-NPs是一种有效的,环保的,经济高效的方法来减轻中的Pb毒性.
- 这种方法有可能回收受Pb污染的土壤,并确保农业的食品安全.
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