Alterations of Glutathione Peroxidase Patterns by Stressor Treatment in Rice Seedling Roots
2005
Kim, Y.K. (Soonchunhyang University, Asan, Republic of Korea) | Lee, M.Y. (Soonchunhyang University, Asan, Republic of Korea), E-mail: [email protected]
The effect of various stressors such as reductant ascorbic acid, signalling molecules (salicylic acid and methyl jasmonic acid), heavy metals (NiCl₂, and MnSO₄) and NaCl on the glutathione peroxidase (GPX) activities and isoenzyme expression patterns were investigated in rice seedling roots. Total GPX activity increased according to the increase of ascorbic acid concentration. Prominent enhancement of GPX1 isozyme due to ascorbic acid contributed to the increase of total GPX activity. GPX showed different reactivity toward salicylic acid and methyl jasmonic acid.
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