Silicon and titanium nanoparticles modulated drought and chromium toxicity by adjusting physio-biochemical attributes and fatty acid profiles of black cumin (Nigella sativa L.)

Chen, Zhen; Kattab, Nada Othman

doi:10.1007/s11356-024-32045-2

Cited by 4 publications

(1 citation statement)

References 34 publications

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“…Plants' regular physiological functions, including nutrition, photosynthesis, and water control, may be hampered by excessive amounts of Cr exposure. This may lead to yellowing of the leaves, slowed growth, and eventually a drop in plant weight(Chen and Kattab 2024). Similarly, high soil salinity can impede plant development by blocking the uptake of water and nutrients(Lasheen et al 2023).…”

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Co-application of titanium dioxide and hydroxyapatite nanoparticles modulated chromium and salinity stress via modifying physio-biochemical attributes in Solidago Canadensis L.

Nafchi,

Kachoie,

Ghodrati

2024

Preprint

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Climate change and human activity have led to an increase in salinity levels and the toxicity of chromium (Cr). One promising approach to modifying these stressors in plants is to use effective nanoparticles (NPs). It is unclear which well-known NPs are most effective in controlling salinity and Cr, as well as which one of salinity and Cr is more dangerous for plants. Although titanium dioxide nanoparticles (TiO2 NPs) have been used recently to decrease salt and Cr toxicity, it is unclear how TiO2 NPs compare to and function in conjunction with hydroxyapatite nanoparticles (HAP NPs). The objective of the current study was to determine the effects of foliar-applied TiO2 NPs (15 mg L− 1) and HAP NPs (250 mg L− 1) separately and in combination on growth, photosynthesis, water content, lipid peroxidation, antioxidant capacity, phenolic content, and essential oils (EOs) of Solidago Canadensis L. under salinity (100 mM NaCl) and Cr toxicity (100 mg kg− 1 soil). Salinity was more deleterious than Cr by decreasing plant weight, chlorophyll (Chl), relative water content (RWC), EO yield, and increasing malondialdehyde (MDA), electrolyte leakage (EL), superoxide dismutase (SOD) activity, and catalase (CAT) activity. The co-application of TiO2 and HAP NPs proved to be more successful. This was evidenced by the increased shoot weight (36%), root weight (29%), Chl a + b (23%), RWC (15%), total phenolic content (TPC, 34%), total flavonoid content (TFC, 28%), and EO yield (56%), as well as the decreased MDA (21%), EL (11%), SOD (22%) and CAT activity (38%) in salt-exposed plants. The results demonstrated the effective strategy of combining these NPs to modify abiotic stress.

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confidence: 99%