Photosynthetic Activity in the Developing Cotyledon of Soybean Seeds
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概要
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We examined whether developing cotyledons of soybean seed had photosynthetic activities. The cotyledons evolved oxygen under illumination and the activity was inhibited by 3-(3, 4-dichlorophenyl)-1, 1-dimethylurea. The rate of oxygen evolution decreased during the development of seeds; about 30 μmol O2•mg chlorophyll-1•hr-1 at the early developing stage and about 10 μmol O2•mg chlorophyll-1•-hr-1 at the late developing stage. The rate of oxygen uptake remained at an almost constant level of 40 μmol O2•mg chlorophyll-1•hr-1 throughout the development. Photosynthetic 14CO2-fixation by the cotyledon was observed. Ribulose bisphosphate carboxylase was immunochemically detected in the developing cotyledons. These results show that functional photosynthetic apparatus is present in the developing cotyledons of soybean seeds.
- 社団法人 日本農芸化学会の論文
著者
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MOMMA Michiko
National Food Research Institute
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Sugimoto Toshio
National Food Research Institute
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SAIO Kyoko
National Food Research Institute
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Tanaka Kiyoshi
Division Of Environmental Biology National Institute For Environmental Studies
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SUGIMOTO Toshio
National Food Research Institute, Ministry of Agriculture, Forestry
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MOMMA Michiko
National Food Research Institute, Ministry of Agriculture, Forestry
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