Synthesis and role of salicylic acid in wheat varieties with different levels of cadmium tolerance

Viktória Kovács, Orsolya K. Gondor, G. Szalai, E. Darkó, Imre Majláth, T. Janda, Magda Pál

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Wheat genotypes with different endogenous SA contents were investigated, in order to reveal how cadmium influences salicylic acid (SA) synthesis, and to find possible relationships between SA and certain protective compounds (members of the antioxidants and the heavy metal detoxification system) and between the SA content and the level of cadmium tolerance. Cadmium exposure induced SA synthesis, especially in the leaves, and it is suggested that the phenyl-propanoid synthesis pathway is responsible for the accumulation of SA observed after cadmium stress. Cadmium influenced the synthesis and activation of protective compounds to varying extents in wheat genotypes with different levels of tolerance; the roots and leaves also responded differently to cadmium stress. Although a direct relationship was not found between the initial SA levels and the degree of cadmium tolerance, the results suggest that the increase in the root SA level during cadmium stress in the Mv varieties could be related with the enhancement of the internal glutathione cycle, thus inducing the antioxidant and metal detoxification systems, which promote Cd stress tolerance in wheat seedlings. The positive correlation between certain SA-related compounds and protective compounds suggests that SA-related signalling may also play a role in the acclimation to heavy metal stress.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalJournal of Hazardous Materials
Volume280
DOIs
Publication statusPublished - Sep 15 2014

Fingerprint

Salicylic acid
salicylic acid
Salicylic Acid
Cadmium
Triticum
cadmium
tolerance
wheat
Detoxification
detoxification
Heavy Metals
Antioxidants
antioxidant
Heavy metals
genotype
Genotype
heavy metal
Acclimatization
Seedlings
acclimation

Keywords

  • Antioxidants
  • Cadmium
  • Heavy metal detoxification
  • Salicylic acid
  • Wheat

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering
  • Medicine(all)

Cite this

Synthesis and role of salicylic acid in wheat varieties with different levels of cadmium tolerance. / Kovács, Viktória; Gondor, Orsolya K.; Szalai, G.; Darkó, E.; Majláth, Imre; Janda, T.; Pál, Magda.

In: Journal of Hazardous Materials, Vol. 280, 15.09.2014, p. 12-19.

Research output: Contribution to journalArticle

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