在Brassica napus和Solanum lycopersicum中内化多壁碳纳米管的氧化反应
Zsuzsanna Kolbert1, Árpád Molnár1, Kamilla Kovács1
1Department of Plant Biology, University of Szeged, Közép fasor 52., 6726, Szeged, Hungary.
Ecotoxicology and environmental safety
|October 27, 2023
概括
多壁碳纳米管 (MWCNTs) 在高度下损害植物,导致氧化应激. 在Brassica napus和Solanum lycopersicum中观察到的这种毒性与这些应激反应的严重程度相关.
科学领域:
- 环境科学 环境科学
- 植物生物学 植物生物学
- 毒理学 毒理学 毒理学
背景情况:
- 多壁碳纳米管 (MWCNTs) 提供了植物的好处,但在高度时会带来风险.
- 了解植物中MWCNT毒性机制对于环境安全至关重要.
研究的目的:
- 研究MWCNTs对Brassica napus和Solanum lycopersicum幼苗中氧化应激的影响.
- 为了比较两种植物物种对MWCNTs的剂量依赖性毒性和分子反应.
主要方法:
- 暴露B. napus和S. lycopersicum幼苗在两种MWCNT度 (10和80毫克/升) 的情况下.
- 使用显微镜检测植物组织中的MWCNT.
- 对氧化应激标志物的分析,包括蛋白质碳化,过氧化和蛋白质氨酸化.
主要成果:
- 在两种物种的根细胞内检测和聚合了MWCNTs.
- MWCNT的吸收降低了根的活力和繁殖,在S. lycopersicum中毒性更高.
- 暴露于MWCNT诱导了显著的蛋白质碳化,过氧化和过氧化积累,特别是在S. lycopersicum.
结论:
- MWCNTs在植物中引发二次氧化应激,导致它们的毒性.
- 氧化过程的强度与植物中MWCNT诱导的毒性水平直接相关.
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