Effect of powdery mildew infection on the antioxidant enzyme activities in different lines of Thatcher-based wheat

Viktória Kovács, Magda Pál, Gyula Vida, Gabriella Szalai, Tibor Janda

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Changes of antioxidant enzyme activities (glutathione reductase, glutathione-S-transferase, catalase, ascorbate peroxidase and guaiacol peroxidase) were studied in four near-isogenic Thatcher-based wheat lines following powdery mildew infection. The activities of ascorbate peroxidase and guaiacol peroxidase were increased significantly after 7 days of infection in all lines. Significant increases were observed in glutathione-S-transferase activity in the lines carrying Lr33, Lr26 and Lr19 genes, furthermore in catalase and glutathione reductase activity in the case of lines with Lr26 and Lr19 genes on the 7 th day of infection. Changes in enzyme activities, caused by aging, were also detected in all lines. Four peroxidase isozymes, induced by infection, were found by gelelectrophoresis.

Original languageEnglish
Pages (from-to)99-100
Number of pages2
JournalActa Biologica Szegediensis
Issue number1
Publication statusPublished - Dec 15 2011



  • Antioxidant enzymes
  • Biotic stress
  • Guaiacol peroxidase
  • Powdery mildew
  • Wheat

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)

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