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KMID : 1024519960050050643
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Journal of the Environmental Sciences
1996 Volume.5 No. 5 p.643 ~ p.656
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The Effect of Light on the Formation of Chlorophyll-Protein Complexes in Oat Seedlings during Greening
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Lee Dong-Hee
Moon Yun-Hee
Hong Jung-Hee
Kim Young-Sang
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Abstract
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Various light intensity and light quality were treated to oat seedlings to investigate the effect of light on the chlorophyll accumulation and the formation of chlorophyll-protein complexes. The Increase of total chlorophyll accumulation and Chl (chlorophyll) a/b ratio was promoted under H (high intensity) white light during oat chloroplast development when compared to 1 (low intensity) white light. Also H white light was more effective in the formation of chlorophyll-protein complexes associated with PSI CCI and CCII than L white light. The seedlings grown in various right quality caused little changes in total chiorophyl and ChI-a/b ratio when compared to those grown in L white light. The assembly of LHCII trimer was more affected by L white light treatment in the formation of-chlorophyll-protein complexes than red light treatment. The effect of blue light on the relative composition of chlorophyll-protein complexes was similar to that of L white light. Particualrly, blue light was more effective in the synthesis of LHCII monomer than the other light quality at the early stage of greening. When compared to red light, blue light was more effective the increase of chlorophyll accumulation and Chl a/b ratio than 1ight Quality, and light Quality may be in important factor for the regulation of the organization in the chlorophyll-protein complexes curing greening. Key words : chlorophyll-protein complexes, Avena sativa L., light intensity, light quality, greening
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KEYWORD
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chlorophyll-protein complexes, Avena sativa L., light intensity, light quality, greening
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