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

Gabriella Szalai, Alexander Krantev, Rusina Yordanova, Losanka Petrova Popova, Tibor Janda

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Presoaking maize (Zea mays) seeds in salicylic acid (SA) reduces damage caused by cadmium. In the present work the possible role of phytochelatins (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 (PCS) activity in the roots and led to an increase in PCS and glutathione reductase (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.

Original languageEnglish
Pages (from-to)708-714
Number of pages7
JournalTurkish Journal of Botany
Volume37
Issue number4
DOIs
Publication statusPublished - 2013

Keywords

  • Cadmium
  • Heavy metal
  • Phytochelatins
  • Salicylic acid
  • Zea mays

ASJC Scopus subject areas

  • Plant Science

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