Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Сен. 12, 2024

The influence of environmental contamination on different ecosystems has become a major problem worldwide. Pollution heavy metals in soil serious global concern. purpose the present experimental work was to assess effect silica nanoparticles (SiNPs) growth, biochemical parameters, and physiological responses Tagetes erecta L. plants under chromium (Cr) stress. In current investigation, we implemented CRD experiment, three sets replicates were employed, each comprising nine unique treatments; control, Cr-I (50 mg kg^{− 1}), Cr-II (100 SiNPs-I L^{− SiNPs-II (200 + SiNPs-I, SiNPs-II, SiNPs-II). When exposed Cr, oxidative damage noticeable. Cr markedly decreased growth characters including shoot root length, fresh dry weights as well photosynthetic pigment but increased level proline, hydrogen-peroxide (H₂O₂), malondialdehyde (MDA) relative membrane permeability plants. Significantly, impacts avoided by SiNPs application. applied externally lessened concentrations H₂O₂, MDA, permeability. Conversely, enhanced content chlorophyll a, b, carotenoid improved plant. They also elevated antioxidant enzyme activity. Furthermore, promote defensive mechanisms against stress toxic boosting absorption particular elements such Ca2+ K+. Based our research, treating with can potentially help them overcome abiotic stresses. Our findings suggest that have potential effectively regulate indicators antioxidants, which significantly lower adverse impact stresses}

Язык: Английский