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Silver nanoparticle modulates gene expressions, glyoxalase system and oxidative stress markers in fluoride stressed Cajanus cajan L

Silver nanoparticle modulates gene expressions, glyoxalase system and oxidative stress markers in fluoride stressed Cajanus cajan L

Journal of Hazardous Materials 353: 44-52

Application of engineered nanomaterials has increased these days due to their beneficial impacts on several sectors of the economy, including agriculture. Silver nanoparticles (AgNP) are commonly used to improve rate of seed germination, and growth and development of plants. The present study was aimed to monitor the role of engineered AgNP (non-dialysed) in the amelioration of fluoride (F)-induced oxidative injuries in Cajanus cajan L. Experimental results revealed that F-exposure inhibited growth and membrane stability index, while were enhanced with the augmentation of AgNP. The results also demonstrated that F treatment enhanced the accumulations of reactive oxygen species, malondialdehyde and oxidized glutathione, gene expression of NADPH oxidase, and activity of lipoxygenase, but were decreased by the addition of AgNP. The results indicated that exogenous application of AgNP provided tolerance against F-toxicity via enhancing the levels of proline, total and reduced glutathione, glyoxalase I and II activities, and expression of pyrroline-5-carboxylate synthetase gene. Conducted study uniquely suggested potential role of AgNP in the remediation of F-toxicity, at least in the Cajanus cajan L. radicles. Further research would be intended to unravel the molecular mechanism(s) involved precisely in the AgNP mediated alleviation of F-toxicity.

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Accession: 065513827

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PMID: 29631046

DOI: 10.1016/j.jhazmat.2018.03.061

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