LHCP phosphorylation and Chlorophyll-Fluorescence Quenching of PSII in Ginseng Thylakoid Members

인삼 틸라코이드에서 광계II의 LHCP 인산화와 형광 Quenching

  • 양덕조 (충북대학교 자연과학대학 생물학과) ;
  • 김명원 (충북대학교 자연과학대학 생물학과, 연세대학교 이과대학 생물학과)
  • Published : 1992.08.01

Abstract

Vsing the phosphorylated thylakoid membrane induced by 5-35kLux of light intensities, we investigated the chlorophyll nuorescence quenching of PSII and the phosphorylation of LHCPII i in relation to the chlorophyll-bleaching of Panax ginseng C.A. Meyer. In the Presence of DCMU, both of the fluorescence yield of non-phosphorylated thylakoid and the rate of fluorescence quencing dependent on the Phosphorylation were high p. ginseng more then Glyine max L. And at the high light F intensity (above 25 kLux) the fluorescence quenching rate of p. ginseng compared with that of G. max reached nearly to 2 times. The LHCPII of P. ginseng was composed of 3 major Polypeptides (24.5, 26 and 27kD) and 3 minor polypeptides (24, 25.3 and 28.3kD) in the region of 24-29kD and differed, from G. max in both of the number and quantity of polypeptides. Among these polypeptides, the phosphorylated polypeptide dependent on the light intensity was 24kD in P. ginseng.