Enzymatic Properties of Phosphoenolpyruvate Carboxylase of Purified Chloroplasts from CAM-Performing Kalanchoe blossfeldiana Poelln. Plants
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概要
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A phosphoenolpyruvate carboxylase (PEPC) (EC 4.1.1.3) activity was associated with, the Percoll purified chloroplasts from Kalanchoe blossfeldiana leaves performing crassulacean acid metabolism (CAM) (plants grown under short-day conditions). Very little PEPC activity was detected in the chloroplasts when the plants were grown under long days, performing a C_3-type photosynthetic metabolism. The PEPC activity measured in the chloroplasts from CAM-plants was very sensitive to such effectors as glucose-6-phosphate (G-6-P) and malate: the initial activity of PEPC in the presence of 1.2 mM PEP was 400% activated by 10 mM G-6-P and was 25% inhibited by 1 mM malate. These results show that the PEPC in the chloroplasts has the enzymatic characteristics described by Brulfert and Queiroz [(1982) Planta 154: 3391 for PEPC extracted from CAM-performing K. blossfeldiana leaves.
- 日本植物生理学会の論文
著者
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Rustin P
Univ. Pierre Et Marie Curie Paris Fra
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Adam Veronique
Universitd Pierre et Marie Curie, Laboratoire de Biologie Vegetale IV
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Rustin Pierre
Universitd Pierre et Marie Curie, Laboratoire de Biologie Vegetale IV
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Adam Veronique
Universitd Pierre Et Marie Curie Laboratoire De Biologie Vegetale Iv