IMPACT OF METALLIC NANOPARTICLES ON ASSIMILATORY PIGMENT AND PROLINE ACCUMULATION IN LEAVES OF HORDEUM VULGARE L.

Abstract

The integration of nanomaterials in conventional agricultural practices ensures an increase in efficiency. The use of nano-fertilizers can improve the plant’s state of vegetation with favorable effects on agricultural production. A systematic analysis of information regarding the impact of nanoparticles on plants is necessary to improve our understanding of the effects of metallic nanoparticles and oxides on the structure and functions of the photosynthesis systems of plants. Chlorophyll a, b and carotenoid contents varied depending on different concentrations of applied Se, Fe2O3 and MgO nanoparticles (NPs). In this paper, we have approached the impact of nanoparticles on plants in relation to the type and concentration of studied nanoparticles. In the case of treatment with Se NPs, proline shows statistically significant increase with P <0.05, and significant decrease in the case of treatment with Fe2O3 and MgO NPs. The decrease in proline content correlates with the increased recorded values of chlorophyll and carotenoids during treatment with Fe2O3 NPs, and increased values of carotenoids when applying MgO NPs. In the case of Fe2O3 NPs a stimulating effect was registered only at the concentration of 250 ppm.

Keywords

• metallic nanoparticles
• assimilatory pigments
• proline
• hordeum vulgare l.