Nanopriming with magnesium oxide nanoparticles enhanced antioxidant potential and nutritional richness of radish leaves grown in field

• Published in: CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
• Main Authors: Gautam, Ayushi; Rusli, Lili Syahani; Yaacob, Jamilah Syafawati; Kumar, Vineet; Guleria, Praveen
• Format: Article; Early Access
• Language: English
• Published: SPRINGER 2024
• Subjects: Science & Technology - Other Topics; Engineering; Environmental Sciences & Ecology
• Online Access: https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001138440500002
• ISSN: 1618-954X; 1618-9558
• DOI: 10.1007/s10098-023-02697-8

The 2030 Agenda of Sustainable Development Goals targets the development of strategies to enhance crop productivity aiming for agricultural sustainability. Nanotechnology-based strategies have the potential to support agricultural development. In this context, the present article documents a field study investigating the impact of 10-150 mu g/ml MgO-NPs nanopriming on radish leaves and roots. Nanopriming significantly enhanced the shoot and root length by 59 and 15%. MgO-NPs considerably increased the carbohydrates and protein content in leaves by 48 and 20%. The polyphenols in radish leaves were enhanced by more than 50% on nanopriming. Surprisingly, HPLC results showed 122, 189, and 75% enhanced accumulation of kaempferol 3-glycoside, quercetin, and rutin in nanoprimed radish leaves. On the contrary, radish roots showed increased oxidative stress of more than 50% in comparison to control on nanopriming. The accumulation of kaempferol 3-glycoside, quercetin, and rutin showed considerably more accumulation on exposure to 10 mu g/ml than 150 mu g/ml in roots. Further, carbohydrates and protein content were enhanced in radish roots for osmoregulation. Hence, nanopriming with MgO-NPs could be a novel strategy to enhance the biochemical parameters of radish leaves, thus enhancing their nutritional richness. It further suggests the use of MgO-NPs as a novel strategy to promote the vegetative growth of plants, where roots are not commercially important.