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KMID : 0352719920160020124
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Journal of Ginseng Research
1992 Volume.16 No. 2 p.124 ~ p.128
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LHCP Phosphorylation and Chlorophyll-Fluorescence Quenching of PSII in Ginseng Thylakoid Membrane
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양덕조
김명원/이성종/윤길영
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Abstract
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Using the phosphorylated thylakoid membrane induced by 5~35kLux of light intensities, we investigated the chlorophyll fluorescence quenching of PSII and the phosphorylation of LHCPII 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 fluorscence quenching dependent on the phosphorylation were high P. ginseng more then Glycine max L. And at the high light intensity (above 25
kLux)
the fluorescence quenching rate of P. ginseng compared with that of G. max reached nearly to times. The LHCPII of P. ginseng was composed of 3 major polypeptides (24.5, 26 and 27kD) and 3 minor polypeptides (24, 25.3and 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 24 kD in P. ginseng.
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