Amylase Activities in Attached and Excised Cotyledons and in Embryonic Axes of Pisum sativum L.
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概要
- 論文の詳細を見る
Amylase activity increased in attached cotyledons of peas, Pisum sativum L. var. Bordi, only during imbibition and remained almost constant up to 96 h after germination, but in excised cotyledons the activity increased slightly at first then markedly. In contrast, the content of the reducing sugars was higher in attached cotyledons than in excised ones. A similar inverse relationship has been found between the concentration of reducing sugars in axes (both attached and excised) and amylase activity. The leakage from intact seeds contained more reducing sugars than the leakage from excised cotyledons, whereas the amount of proteins released from the cotyledons was four times greater during imbibition. This increase in amylase activity in excised cotyledons is not thought to be the result of axis excision, but to be the result of the leakage of sugars from the cotyledons during incubation. These results suggest that the concentration of reducing sugars may be a factor that regulates amylase activity in vivo in both the cotyledons and axis during the germination of pea seeds.
- 日本植物生理学会の論文
著者
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Romanowska Elzbieta
Department Of Plant Physiology Ii Of The Biology Faculty University Of Warsaw
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Romanowska Elzbieta
Department Of Plant Physiology Botanical Institute Warsaw University
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Parys Eugeniusz
Department of Plant Physiology II of the Biology Faculty, University of Warsaw
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Poskuta Jerzy
Department of Plant Physiology II of the Biology Faculty, University of Warsaw
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Parys Eugeniusz
Department Of Plant Physiology Ii Of The Biology Faculty University Of Warsaw
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Poskuta Jerzy
Department Of Plant Physiology Ii Of The Biology Faculty University Of Warsaw
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- Amylase Activities in Attached and Excised Cotyledons and in Embryonic Axes of Pisum sativum L.
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