Journal
FEBS LETTERS
Volume 486, Issue 2, Pages 103-106Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0014-5793(00)02230-4
Keywords
antioxidant activity; rice 1Cys-peroxiredoxin; seed dormancy; transgenic rice 1Cys-peroxiredoxin tobacco
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Possible functions that have been proposed for the plant 1Cys-peroxiredoxin, include activity as a dormancy regulator and as an antioxidant. The transcript level of rice 1Cys-peroxiredoxin (R1C-Prx) rapidly decreased after imbibition of rice seeds, but the protein was detected for 15 days after imbibition. To investigate the function of this protein, we generated transgenic tobacco plants constitutively expressing the R1C-Prx gene. The transgenic R1C-Prx plants showed a germination frequency similar to control plants. However, the transgenic lines exhibited higher resistance against oxidative stress, suggesting that antioxidant activity may be its primary function. (C) 2000 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved.
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