Abstract
Metallothionein-II(MT-II) has been identified to play an important role in the exposure of plant to heavy metal like Cd and Cu.One of the mechanisms of MT's proposed to protect plants during this process is that it can quench the reactive oxygen species(ROS) activated by heavy-metal exposure.Here we demonstrated the effect of expression of MT-II in Arabidopsis thaliana on oxidative stress and damage extent during drought stress. The RT-PCR results suggested the implication of MT-II against drought stress in the transgenic Arabidopsis.Measurements of H_2O_2 and malondialdehyde (MDA) indicated that over-expression of MT-II in A.thaliana improved desiccation tolerance.
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