Sucrose Synthase, UDP-glucose pyrophosphorylase and ADP-glucose Pyrophosphorylnse in Korea Ginseng Roots

6년생 고려인삼근(Panax ginseng C.A. Meyer) 중의 Sucrose synthase, UDP-glucose pyrophosphorylase 및 ADP-glucose pyrophosphorylase의 활성을 생육 시기별로 조사한 결과, Sucrose synthase 와 ADP-glucose pyrophosphorylase는 뿌리저장활성 지표로서 adaptive enzyme의 특성을 나타내는 반면, UDP-glucose pyrophosphorylase는 maintenance enzyme으로서 존재하였다. 평균기온이 24。C 이상일 때 전분합성이 저하되고 중심부의 산소소비량이 급격히 증가되었다.

The seasonal variation in the activity of sucrose synthase, ADP-glucose pyrophosphorylase and UDP-glucose pyrophosphorylase in roots of Panax ginseng C.A.Meyer have been studied. It was revealed that sucrose synthase and ADP-glucose pyrophosphorylase are adaptive enzymes and can serve as markers of sink strength, while UDP-glucose pyrophosphorylase is the maintenance enzyme. The average day temperature exceeded 24。C appeared to cause the disturbance in refilling process, affecting the starch synthesis. Study on the dependence of oxygen consumption in stele tissue with temperature revealed the sharp accelerating of this process after 24。C.