インゲンマメ葉ディスクの老化に及ぼす光と植物ホルモンの影響

概要

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The effect of various plant hormones and light intensity on senescence of the disks punched from the first leaves of ten day old bean (Phaseolus vulgaris) seedlings was investigated. The chlorophyll contents in disks at eighth day after experiment beginning were larger in BA and GA as compared with control and little in IAA and ABA. The decrease in chlorophyll contents was suppressed maximum by BA treatment, and minimum by ABA treatment. The growth of disk diameter was promoted in the light as compared with the dark, and the increase of growth rate was larger in the case of GA treatment than in BA. The daily decrease in chlorophyll contents was larger in the dark, and this decreasing tendency was highest in ABA followed by IAA, control, GA, and BA in that order. The effect of BA which prevented the decrease in chlorophyll content became larger in lower light intensity. The contents of water soluble protein and thermic noncoagulated protein increased from day to day in the light, and decreased in the dark. This increasing tendency of proteins content was highest in BA. The daily increase in amino acid contents was larger in the dark, and this tendency was highest in control followed by GA and BA in that order.
福岡女子大学の論文
1988-01-25