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Titanium nanoparticles attenuates arsenic toxicity by up-regulating expressions of defensive genes in Vigna radiata l

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Journal of Environmental sciences 2020年第6期32卷 18-27页

作者： Priya Katiyar Bhumika Yadu Jyoti Korram manmohan l.s.tnami Meetul Kumar s.Keshavkant school of studies in Biotechnology Pt.Ravishankar Shukla UniversityRaipur 492010India school of studies in Chemistry Pt.Ravishankar Shukla UniversityRaipur 492010India Directorate of International Cooperation Defence Research and Development OrganizationNew Delhi 110001India

Arsenic(As)-toxicity is recognized as one of the major environmental problems,affecting productivity of crops worldwide,thereby threatening sustainable agriculture and food *** in nanotechnology and its impacts have brought up concerns about the application of engineered nanoparticles(NPs)in various sectors of the economy,including the field of *** various NPs,there has been a rising amount of interest regarding the effects of titanium NPs(TiNPs)on plants growth and development,and their fate of abiotic stress ***,the present study was aimed to assess the ameliorative potentialities of chemically and biologically/green synthesized TiNPs to alleviate As-induced toxic responses in Vigna radiata *** results revealed that exposure to As hindered the growth indices(radicle length and biomass)and membrane integrity,while were improved with the application of chemical and green synthesized *** addition,treatment of As provoked the accretion of reactive oxygen species(superoxide and hydrogen peroxide)and malondialdehyde(a lipid per oxidized product),but were diminished by the supplementation of chemical and green manufactured *** experimental data also signified that exogenous application of chemical and green synthesized TiNPs conferred tolerance to As-induced oxidative injuries via perking-up the expressions of antioxidant genes and enzyme systems viz;superoxide dismutase and ***,the present study inferred that chemically and green synthesized TiNPs,particularly green manufactured,effectively mitigated the adverse impacts of As by augmenting antioxidant machinery,thereby proving its potentiality in the alleviation of As-toxicity,at least in Vignaradiata l.

关键词： Antioxidants Arsenic Gene expression Titanium nanoparticles(TiNPs) Reactive oxygen species(ROs) Vigna radiata l

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