@article{
author = "Petrović, Gordana and Živanović, Tomislav and Nikolić, Zorica and Vasiljević, Sanja and Milošević, Dragana and Stanisavljević, Nemanja and Samardžić, Jelena",
year = "2023",
abstract = "Background: This study was carried out for an understanding of the antioxidant mechanisms of field pea varieties under osmotic
stress conditions caused by a lack of water. The activities of antioxidant enzymes such as superoxide dismutase (SOD), catalase
(CAT), ascorbate peroxidase (APx) and glutathione reductase (GR) were examined and analyzed. The gene expression levels of
Cu/Zn SOD, cAPx and GR genes were also examined.
Methods: Osmotic stress was stimulated using PEG 6000 with the osmotic potential of -0.1 MPa in 10 days old plant seedlings. The
activity of the antioxidant enzymes was measured in the shoots and roots of pea seedlings. The gene expression levels of genes
coding antioxidative enzymes were examined by the reverse transcription polymerase chain reaction (RT-PCR) technique. Arabidopsis
18S rRNA was used as endogenous control.
Result: Osmotic stress changed the activities of antioxidant enzymes in the shoots and roots of pea seedlings. Varieties more
tolerant to osmotic stress showed a significant increase in antioxidant activities in shoots and roots, while sensitive varieties showed
a significant decrease. The results of the analysis of the expression of genes, coding for antioxidant enzymes, showed that the
reaction of the tested cultivars to ROS was the result of increased expression of the tested genes in tolerant cultivars, i.e. decreased
expression in sensitive cultivars.",
journal = "Legume Research",
title = "Drought-induced Changes in the Antioxidant System in Pisum sativum L.",
pages = "1452-1445",
number = "11",
volume = "46",
doi = "10.18805/LRF-755"
}