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

Analysis of sugars and total amino acids-content of young spring and fall-radish cotyledons and hypocotyls by cold and polyamine-treatments

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1996, v.9 no.4, pp.325-330
Cho, Bong-Heuy
Park, Sun Young
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Abstract

The content of reducing sugars and sucroses was increased by cold- and PA-treatment in cotyledons of spring radish. But in cotyledons of fall radish, the content of reducing sugars, and sucroses was increased by cold treatment but was not increased by cold- and PA-treatment. Total free amino acids in cotyledons of spring radish were increased by cold treatment, but were not increased in cotyledons of fall radish. The results show that cold sensitive spring radishes were adapted by regulating of cellular osmosis and show that the physiological and biochemical metabolism of spring radish was much different from the fall radish. We report first that polyamine has synergetic effect with cold stress on cotyledons of spring radish, but not on cotyledons of fall radish.

keywords
spring radish, fall radish, cold treatment, polyamine


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