Catalases CAT1 and CAT3 Are not Key Enzymes in Alleviating Gamma Irradiation-Induced DNA Damage, H2O2 Accumulation, or Lipid Peroxidation in Arabidopsis thaliana

Amena SULTANA; Ikuko MINAMI; Daiki MATSUSHIMA; Mohammad ISSAK; Yoshimasa NAKAMURA; Setsuko TODORIKI; Yoshiyuki MURATA

doi:10.1271/bbb.130336

Biochemistry & Molecular Biology Notes

Catalases CAT1 and CAT3 Are not Key Enzymes in Alleviating Gamma Irradiation-Induced DNA Damage, H₂O₂ Accumulation, or Lipid Peroxidation in Arabidopsis thaliana

Amena SULTANA, Ikuko MINAMI, Daiki MATSUSHIMA, Mohammad ISSAK, Yoshimasa NAKAMURA, Setsuko TODORIKI, Yoshiyuki MURATA

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Keywords: catalase, DNA damage, gamma irradiation, hydrogen peroxide accumulation, lipid peroxidation

JOURNAL FREE ACCESS

2013 Volume 77 Issue 9 Pages 1984-1987

DOI https://doi.org/10.1271/bbb.130336

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Abstract

Gamma irradiation increased catalase activities at 0.1 kGy and decreased them at 10 kGy in Arabidopsis wild type and catalase-deficient mutants, cat3-1 and cat1 cat3. Irradiation induced DNA damage, H₂O₂ accumulation, and lipid peroxidation in both mutants as well as the wild type. Thus catalases might not be key enzymes protecting gamma irradiation-induced damage.

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