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

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, H 2 O 2 accumulation, and lipid peroxidation in both mutants as well as the wild type. Thus catalases...

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Bibliographic Details
Published in:Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2013, Vol.77 (9), p.1984-1987
Main Authors: SULTANA, Amena, MINAMI, Ikuko, MATSUSHIMA, Daiki, ISSAK, Mohammad, NAKAMURA, Yoshimasa, TODORIKI, Setsuko, MURATA, Yoshiyuki
Format: Article
Language:English
Subjects:
Arabidopsis - enzymology
Arabidopsis - genetics
Arabidopsis - metabolism
Arabidopsis - radiation effects
Arabidopsis thaliana
catalase
Catalase - metabolism
DNA Damage
gamma irradiation
Gamma Rays - adverse effects
Hydrogen Peroxide - metabolism
hydrogen peroxide accumulation
lipid peroxidation
Lipid Peroxidation - radiation effects
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Summary: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, H 2 O 2 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.
ISSN:0916-8451
1347-6947
DOI:10.1271/bbb.130336