Cadmium stimulates the accumulation of salicylic acid and its putative precursors in maize (Zea mays) plants

Research output: Article

105 Citations (Scopus)

Abstract

The effect of 10, 25 and 50 μM Cd(NO3)2 on the salicylic acid (SA) metabolism was investigated in young maize seedlings (Zea mays L., hybrid Norma). Cadmium (Cd) was translocated into the leaves and induced oxidative damage, as indicated by the reduced chlorophyll content, the decreased quantum efficiency of photosystem II and the enhanced malondialdehyde (MDA) content, especially after 7 days. The activity of glutathione reductase (EC 1.6.4.2) increased from the fourth day and that of guaiacol peroxidase (EC 1.11.1.7) after 7 days of Cd stress compared with the control leaves. These effects of Cd exhibited a correlation with the concentration. Under these conditions, Cd did not affect the MDA content or the antioxidant enzyme activities in the roots. After 7 days, Cd increased the levels of free and bound forms of benzoic acid (BA), O-coumaric acid (O-hydroxycinnamic) (O-HCA) and SA in the leaves, but in the roots, only the 50 μM rate of Cd caused changes in the free O-HCA acid and bound BA content.

Original languageEnglish
Pages (from-to)356-364
Number of pages9
JournalPhysiologia Plantarum
Volume125
Issue number3
DOIs
Publication statusPublished - nov. 1 2005

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science
  • Cell Biology

Fingerprint Dive into the research topics of 'Cadmium stimulates the accumulation of salicylic acid and its putative precursors in maize (Zea mays) plants'. Together they form a unique fingerprint.

  • Cite this