Rice 1Cys‐peroxiredoxin over‐expressed in transgenic tobacco does not maintain dormancy but enhances antioxidant activity

FEBS Letters

Cho, Moo Je¹  Jung, Bae Gyo¹  Lee, Jung Ro¹  Choi, Yeon Ok¹  Chi, Yong Hun¹  Lee, Ji Yeun¹  Lee, Kyun Oh¹  Lim, Chae Oh¹  Lee, Sang Yeol¹  Jang, Ho Hee¹ 

[1] School of Applied Life Sciences, Gyeongsang National University, Chinju 660-701, South Korea

关键词: Antioxidant activity;    Rice 1Cys-peroxiredoxin;    Seed dormancy;    Transgenic rice 1Cys-peroxiredoxin tobacco;    ABA;    abscisic acid;    CaMV;    cauliflower mosaic virus;    DNP-hydrazone;    2;    4-dinitrophenylhydrazone;    MS;    Murashige and Skoog;    Prx;    peroxiredoxin;    R1C-Prx;    rice 1Cys-peroxiredoxin;    ROS;    reactive oxygen species;   

DOI  :  10.1016/S0014-5793(00)02230-4

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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 ice ys-eroxiedoin (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.

【 授权许可】

Unknown