Gul Faiza Zareen, Hanif Saad, Abbasi Bilal Haider, Asad Bushra, Khan Aisha, Hano Christophe, Zia Muhammad
Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan.
Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328/Université d'Orléans, 28000 Chartres, France.
ACS Omega. 2020 Sep 15;5(38):24211-24221. doi: 10.1021/acsomega.0c01878. eCollection 2020 Sep 29.
Cadmium nanoparticles (NPs) used in semiconducting devices are photosensitive and optically active. The objective of this study was to investigate the interactive effect of different spectral lights and CdO NPs on morphological, antioxidant, and phytochemical characteristics of . The plants were grown on media in the presence of green and chemically synthesized CdO NPs and under red, yellow, green, blue, and white light intensities. Results illustrated that plant morphological parameters changed in the presence of different spectral lights and NPs behaved differentially under different spectral lights. Fresh and dry weights of plants decreased in the presence of NPs in the media; however, the concentration and route of synthesis of NPs have a significant effect on these parameters. The same was observed in the case of shoot and root lengths; however, green synthesized NPs were found to be less toxic under different spectral lights. The total antixodant response increased under yellow, blue, and white lights, while the total reducing potential of plant extracts significantly varied depending upon the NP concentration and light spectrum. Different spectral lights significantly influenced the syntheses of phenolics and flavonoids under CdO NP stress and light regimes. It is concluded that toxicity of NPs also depends upon the wavelength of striking light that varies the morphological, biochemical, and antioxidative response of the plants. Furthermore, the white light might have synergistic effects of different wavelengths.
用于半导体器件的镉纳米颗粒（NPs）具有光敏性和光学活性。本研究的目的是探究不同光谱光和CdO NPs对[植物名称未给出]的形态、抗氧化和植物化学特征的交互作用。将植物种植在含有绿色和化学合成CdO NPs的培养基上，并置于红色、黄色、绿色、蓝色和白色光强度下。结果表明，在不同光谱光存在下植物形态参数发生变化，且NPs在不同光谱光下表现不同。培养基中存在NPs时植物的鲜重和干重下降；然而，NPs的浓度和合成途径对这些参数有显著影响。茎长和根长情况相同；然而，发现绿色合成的NPs在不同光谱光下毒性较小。在黄色、蓝色和白色光下总抗氧化反应增加，而植物提取物的总还原能力根据NP浓度和光谱显著变化。在CdO NP胁迫和光照条件下，不同光谱光显著影响酚类和黄酮类化合物的合成。得出结论，NPs的毒性还取决于照射光的波长，其会改变植物的形态、生化和抗氧化反应。此外，白光可能具有不同波长的协同作用。
