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由纳米颗粒二氧化控制的光合作用. 在Pisum sativum L.的案例研究

Elżbieta Skiba¹, Monika Pietrzak¹, Sylwia Michlewska²

¹Institute of General and Ecological Chemistry, Lodz University of Technology, Poland.

Environmental pollution (Barking, Essex : 1987)

|October 17, 2023

概括

二氧化 (TiO2) 纳米粒子通过改变CO2同化和气体交换来增强绿豆中的光合作用. 尽管口腔导电性增加,但由于叶绿体的水消耗,透气减少.

科学领域:

环境科学环境科学
植物生理学植物生理学
纳米技术纳米技术

背景情况:

人为二氧化 (TiO2) 纳米颗粒在环境中越来越普遍.
这些纳米粒子与植物相互作用,影响生长,营养状况和代谢过程.

研究的目的:

研究纳米TiO2对绿豆 (Pisum sativum L.) 的光合作用效率的影响.

主要方法:

用不同的TiO2度 (10,50,100毫克/升) 进行绿豆水培养.
在植物组织中检测TiO2纳米颗粒,使用单颗粒ICP-MS/MS.
对二氧化碳吸收率,气交参数和营养元素度的分析.

主要成果:

在所有测试度下,TiO2纳米粒子透到植物组织中.
观察到二氧化碳同化,透气和口腔导电性的显著变化,特别是在50mg/LTiO2.
光合作用效率指标,包括RuBP碳氧化和电子传输率,得到了提高.
观察到与光合作用有关的基本营养元素 (Cu,Zn,Mn,Fe) 的变化.

结论:

TiO2纳米颗粒的光催化活性可以克服植物的防御机制,刺激光合作用.
虽然口腔导电性增加了,但由于叶绿体内的水利用,透气减少了.

关键词:

纳米粒子的迁移过程营养素的吸收营养素的吸收豆豆 (Pea Pea) 是一种植物.光合作用光合作用二氧化纳米颗粒的二氧化.spICP-MS/MS,这是一个很好的方法.

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