Relationship between biotic stress tolerance and protective compounds in wheat genotypes

V. Kovács, G. Vida, G. Szalai, T. Janda, M. Pál

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Large numbers of wheat genotypes were grown under field conditions and screened for biotic stress tolerance and certain protective compounds. It was found that both the salicylic acid and polyamine contents of the investigated genotypes varied over a wide range, while the antioxidant enzyme activities showed a similar pattern in the different genotypes. In order to investigate stress-induced changes in salicylic acid and polyamine contents, samples were collected from plants artificially inoculated with leaf rust (Puccinia triticina), on which natural powdery mildew [Blumeria graminis (DC.) Speer f. sp. tritici Em. Marchal] infection also appeared. Biotic stress mostly resulted in elevated levels of total salicylic acid and polyamines in all the genotypes. The activities of various antioxidant enzymes showed similar changes after infection regardless of the genotype. The investigation was aimed at detecting a relationship between the level of stress tolerance and the contents of protective compounds, in particular salicylic acid and polyamines.

Original languageEnglish
Pages (from-to)131-141
Number of pages11
JournalActa Agronomica Hungarica
Volume60
Issue number2
DOIs
Publication statusPublished - Jun 1 2012

Keywords

  • antioxidant enzyme
  • biotic stress
  • polyamine
  • salicylic acid
  • wheat

ASJC Scopus subject areas

  • Agronomy and Crop Science

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