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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Analysis of the Transport System of Cadmium and the Change of Proline Content in Spring Radish Young Plant

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1996, v.9 no.2, pp.134-138
Park, Sun Young
Park, Myon-Yong
Cho, Bong-Heuy
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Abstract

Cadmium was transported through the special carrier system into the cells of cotyledons, hypocotyls, and roots spring radish young plants. The transport of cadmium was inhibited by metabolic inhibitor, like DNP. The <TEX>$K_m$</TEX> values for cadmium were 0.7 ppm for cotyledons, 1.72 ppm for hypocotyls, and 0.3 ppm for roots, and <TEX>$V_{max}$</TEX> for cadmium was <TEX>$40ppm{\cdot}h^{-1}{\cdot}g{\cdot}fresh\;weight^{-1}$</TEX> for cotyledons, <TEX>$313ppm{\cdot}h^{-1}{\cdot}g{\cdot}fresh\;weight^{-1}$</TEX> for hypocotyls, and <TEX>$606ppm{\cdot}h^{-1}{\cdot}g{\cdot}fresh\;weight^{-1}$</TEX> for roots. Cadmium cannot prove to be inducer for proline accumulation. Therefore, proline accumulation cannot be used as a marker to test the level of heavy metal pollution.

keywords
proline, cadmium, spring radish


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