Effect of iron oxide nanoparticles on the growth of maize sprouts cultivated under drought stress and on the activity dynamics of NADP-ISDH enzyme

The effect of iron oxide nanoparticles (FeNPs-Fe 2 O 3 ) on the growth of maize sprouts ( Zea mays L. ) cultivated under drought conditions and on the activity dynamics of the NADP-ISDH enzyme in the root and leaf cells of the plant has been studied. In the conducted experiments, it has been observed that nanoparticles have a stimulating effect on the samples of the maize plant cultivated under both control and drought conditions. Thus, in 15-day-old sprouts, compared to the control, in the sprouts developed from seeds treated with nanoparticles, the root has advanced by 27.8%, and stem 32.7%. In the samples cultivated under drought conditions, the sprouts developed from seeds treated with nanoparticles, the root has progressed by 21.5% and the stem by 25.9% compared to the other option (only drought). The induction of NADPH-ISDH enzyme has been recorded in root and leaf tissues in all variants related to the growth of sprouts during the first 10 days of the experiment. The highest value of enzyme activity