چکیده
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Cadmium selenide nanoparticles (CdSe NPs) were synthesized by an easy and simple
method and their properties were assessed by XRD, TEM and SEM techniques. The effects of CdSe
NPs as well as Cd2+ ions on Lemna minor plants were investigated. The absorption of CdSe NPs
by the plants had some adverse consequences that were assessed by a range of biological analyses.
The results revealed that both CdSe NPs and the ionic form of cadmium noticeably caused toxicity
in L. minor. Morphological parameters as well as peroxidase (POD) activity were deteriorated.
In contrast, the activities of some other antioxidant enzymes (superoxide dismutase (SOD) and
catalase (CAT)) as well as the contents of total phenol and flavonoids went up. Taken all together,
it could be implied that CdSe NPs as well as Cd2+ were highly toxic to plants and stimulated the
plant defense system in order to scavenge produced reactive oxygen species (ROS).
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