Effects of green and chemically synthesized ZnO nanoparticles on Capsicum annuum under drought stress

• DOI: 10.1007/s11738-025-03767-8
• Publication Date: 2025-01-23T11:19:54Z
• Authors: Aysin Guzel Deger; Sertan Çevik; Oskay Kahraman; Ersan Turunc; Ayşegül Yakin; Rıza Binzet
• Keywords: TBARS; Thiobarbituric acid; Capsicum annuum; Drought stress; Plant Physiology

Abstract Nanoparticle applications have recently become a popular method due to increase the tolerance levels of plants environmental stresses. In this study, changes induced by exogenous application green synthesized and commercially purchased zinc oxide nanoparticles (ZnO NPs) (100, 500, 1000 mg/L) drought-stressed Capsicum annuum were studied through comprehensive morphologic, anatomic, physiological biochemical analyzes. While drought decreased relative water content (RWC) leaf potential (LWP), it increased proline, thiobarbituric acid reactive substances (TBARS) antioxidant enzyme activities. Exogenous ZnO NPs RWC LWP but they TBARS proline contents in plants. Furthermore, data obtained study revealed that response varies depending on concentration type synthesis. However, (100 500 found be much more effective reducing adverse effects stress than those chemically. The results indicated although varied according under conditions, nanoparticle did not lead consistent response.