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암처리한 인삼엽의 Greening 과정에서의 Chlorophyll - protein Complex 형성에 대한 연구
박인호,홍영남,권영명,이순희,조영동 ( In Ho Park,Young Nam Hong,Young Myung Kwon,Soon Hee Lee,Yong Dong Cho ) 생화학분자생물학회 1982 BMB Reports Vol.15 No.1
The formation and chlorophyll composition of chlorophyll-protein complexes were investigated in the etiolated ginseng leaves during greening under continuous white light(2000 lux, 25℃, 66% relative humidity). Six chlorophyll-containing bands (CP1a, CP1, LHCP1, LHCP2, LHCP3, free pigment zone) were separated by SDSPAGE from ginseng leaves(grown under light). Chlorophyll a-rich CP1 complex and chlorophyll a/b-rich LHCP complexes reveal their maximum absorption peaks at 676 ㎚ and 670 ㎚, respectively. And chlorophyll a/b-rich LHCP complexes have another minor peak at 652nm. CPI and LHCP complexes have already formed in the etiolated ginseng leaves after 12 hr light treatment. And chlorophyll a/b ratio of CP1 complex and the percentages of chlorophyll contents of each complexes increased progressively during greening. These results suggest that the light-induced biosynthesis of CP complex molecules and the formation of functional PSI and PS II could occur within 12 hr of illumination in the etiolated ginseng leaves during greening.
암처리한 인삼엽의 Greening 과정에서의 Chlorophyll-protein Complex 형성에 대한 연구
박인호,홍영남,권영명,이순희,조영동,Park, In-Ho,Hong, Young-Nam,Kwon, Young-Myung,Lee, Soon-Hee,Cho, Yong-Dong 생화학분자생물학회 1982 한국생화학회지 Vol.15 No.1
암처리(暗處理)한 인삼엽(人蔘葉)을 greening시키는 과정에서(광도 ; 2,000 lux연속광 ; 온도 $25^{\circ}C$;상대습도, 66%) 형성되는 chlorophyll-protein complex의 전기영동 패턴, 각(各) complex의 엽록소조성 및 흡수스펙트럼 양상을 조사하였다. 광하(光下)에서 자란 인삼엽(人蔘葉)의 thylakoid membrane을 5% SDS-PAGE로 분리하였을 때 6개의 chlorophyll-containing band를 볼 수 있었다(CP1a, CP1, LHCP1, LHCP2, LHCP3 complex, free pigment zone). Chlorophyll a-rich CP1 complex와 chlorophyll a/b-rich LHCP complex는 676nm와 670nm에서 각각 흡수극대를 나타냈으며, chl. a/b-rich LHCP complex는 652nm에서 minor한 peak를 나타내었다. 암처리 인삼의 greening과정에서 CP1 LHCP complex는 12시간의 광(光)처리후에 이미 형성되어 있었으며, CP1 complex의 chl. a/b ratio와 각 complex의 chlorophyll함량은 greening이 진행됨에 따라 점차 증가하는 경향을 보이고 있다. 이러한 결과는 광(光)에 의해 유도되는 CP complex분자의 생합성 및 기능적으로 활성을 갖는 PSI과 PSII의 형성이 광(光)처리 12시간내에 나타난 가능성을 시사한다. The formation and chlorophyll composition of chlorophyll-protein complexes were investigated in the etiolated ginseng leaves during greening under continuous white light(2000 lux, $25^{\circ}C$, 66% relative humidity). Six chlorophyll-containing bands (CP1a, CP1, LHCP1, LHCP2, LHCP3, free pigment zone) were separated by SDSPAGE from ginseng leaves(grown under light). Chlorophyll a-rich CP1 complex and chlorophyll a/b-rich LHCP complexes reveal their maximum absorption peaks at 676nm and 670nm, respectively. And chlorophyll a/b-rich LHCP complexes have another minor peak at 652nm. CPI and LHCP complexes have already formed in the etiolated ginseng leaves after 12 hr light treatment. And chlorophyll a/b ratio of CP1 complex and the percentages of chlorophyll contents of each complexes increased progressively during greening. These results suggest that the light-induced biosynthesis of CP complex molecules and the formation of functional PSI and PS II could occur within 12 hr of illumination in the etiolated ginseng leaves during greening.