PROCENA OKSIDATIVNOG STRESA KUKURUZA I SUNCOKRETA TRETIRANIH HOLNOM KISELINOM U RAZLIČITIM MEDIJUMIMA – SKRINING TEST

The effect of cholic acid (CA) dissolved in two different media, namely Hogland nutrient solution and distilled water, on the oxidative stress of maize (Zea mays, L.) and sunflower (Helianthus annuus, L.) was assessed by measuring the intensity of lipid peroxidation. The aim of this screening is to observe possible differences in the results obtained from plants treated with an aqueous solution of cholic acid and those treated with a solution of cholic acid in Hogland's solution. Oxidative stress was assessed on the basis of the estimated intensity of lipid peroxidation (LP), and on the basis of the measured amount of the resulting LP final product, malondialdehyde (MDA). The results showed faster production of MDA in plants treated with cholic acid in Hogland's solution, which indicates that nutrients affect the action of CA.