Influence of salicylic acid on phytochelatin synthesis in Zea mays during Cd stress

Authors : Gabriella SZALAI, Alexander KRANTEV, Rusina YORDANOVA, Losanka Petrova POPOVA, Tibor JANDA

Pages : 708-714

Doi:10.3906/bot-1210-6

View : 27 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Presoaking maize insert ignore into journalissuearticles values(Zea mays); seeds in salicylic acid insert ignore into journalissuearticles values(SA); reduces damage caused by cadmium. In the present work the possible role of phytochelatins insert ignore into journalissuearticles values(PCs); in SA-mediated protection against Cd toxicity was investigated. Seeds were presoaked in 0.5 mM SA, and seedlings were grown in hydroponic solution containing 0, 0.01, 0.015, or 0.025 mM Cd. Treatment with Cd increased the PC levels in maize roots, but only slight changes were observed in the leaves. Long-term exposure to Cd decreased the phytochelatin synthase insert ignore into journalissuearticles values(PCS); activity in the roots and led to an increase in PCS and glutathione reductase insert ignore into journalissuearticles values(GR); activities in maize leaves. Although presoaking seeds in SA solution before exposure to Cd may reduce the level of heavy metal injury and has an effect on the composition of individual PCs, this protection is not directly connected with the altered regulation of PCs.
Keywords : Key words Cadmium, heavy metal, phytochelatins, salicylic acid, Zea mays