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Abstract ▼ AI-Helper

Tobacco and ginseng plants differed in responses to varied light intensities. Tobacco showed high in CO$_2$ uptake and RuBPCase activity at 1900 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/, being high by 3.7 times and 2.7 times than ginseng respectively. Close positive relationships...

Tobacco and ginseng plants differed in responses to varied light intensities. Tobacco showed high in CO$_2$ uptake and RuBPCase activity at 1900 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/, being high by 3.7 times and 2.7 times than ginseng respectively. Close positive relationships existed between CO$_2$ uptake and RuBPCase activity in tobacco. However, ginseng showed negative correlation. The activity of glycolate oxidase and malate dehydrogenase in tobacco was high at 1900 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/, but those of ginseng was high at 1000 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/. Nitrate reductase activity of tobacco at 1900 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/ was 2 times higher than that at 500 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/, while that of ginseng was no detected in all plots. The content of protein and chlorophyll in tobacco was 2.2 times and 1.5 times higher than in ginseng at the most efficient light intensity. The ratio of chlorophyll a/b in tobacco was low at 500 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/, while that of ginseng was low at 1000 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/. The relationships between protein and chlorophyll was high positive correlation. However, on 5 days after treatment, ginseng showed negative correlation at 500 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/. Tobacco and ginseng showed different leaf soluble protein patterns on SDS-gel electrophoresis. The molecular weights of two major band were 50 KD and 15 KD in both plants. The major bands in tobacco were thinned at 500 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/, while those in ginseng thinned at 1000 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/ from 15days after treatment. Disappeared band was 45 KD at 500 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/ in tobacco, but that of ginseng was 47 KD at 1000 ${\mu}$ E m/sup-2/ sec$^<$TEX>-1/.