Fulvic Acid-releasing Chitosan Nanoparticles Promote the Growth and Drought Stress Tolerance of Rice Plants

• DOI: 10.1007/s10343-024-00979-9
• Publication Date: 2024-04-25T09:01:46Z
• Authors: Mwondha Faluku; Tiba Nazar Ibrahi...; Nusrat Jahan Methela; Murtaza Khan; Vu Ngoc Huy; Alexander Brown; Da-Sol Lee; Bong-Gyu Mun; Adil Hussian; Byung-Wook Yun
• Keywords: APX; Drought Tolerance; Limiting; Drought stress

Drought stress is a major limiting factor for rice production globally. The current climatic changes have further increased the incidence and duration of droughts worldwide. On other hand, nanotechnology can revolutionize agriculture by offering novel tools materials various applications. Here, we synthesized fulvic acid-releasing chitosan nanoparticles (Ch-FANPs) investigated their potential promoting growth under extended drought conditions. In hydroponic screening experiment, 0.1 mM Ch-FANPs gave best results supporting maximum shoot root lengths as well fresh dry weights. soil-based experiments, this concentration promoted irrigated (control) during 10-day regime above below-ground parameters such lengths, leaf area, relative water content, compared to acid (FA) (Ch) alone. Furthermore, mitigated dress modulating stomatal movement chlorophyll content resulting in biomass. protected against activating antioxidant defense indicated lowest H2O2 MDA contents highest ascorbate peroxidase (APX) activity soluble protein Ch-FANP-treated plants. addition, treatment also resulted significantly higher expression marker genes OsDREB1A, OsCIPK3, OsNAC77 These indicate play key role mitigating adverse effects scarcity be tailored mitigate stresses.