Degradation of Endogenous Organic Acids Induced by P_i Uptake in Catharanthus roseus Cells : Involvement of the Biochemical pH-Stat
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概要
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We have previously shown that inorganic orthophosphate (P_i) uptake by Catharanthus roseus cells proceeds by a proton/P_i cotransport mechanism [Sakano (1990) Plant Physiol.93: 479] that acidifies the cytoplasm [Sakano et al.(1992) Plant Physiol.99: 672]. In the present study, we analyzed changes in the content of endogenous organic acids, carbon dioxide evolution, and oxygen consumption upon P_i application. The results are consistent with the operation of the biochemical pH-stat mechanism [Davies (1986) Physiol.Plant.67: 702] during and after P_i uptake.
- 日本植物生理学会の論文
著者
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Yazaki Yoshiaki
National Institute of Agrobiological Resources
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Sakano Katsuhiro
National Institute Of Agrobiological Resources
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Kiyota Seiichiro
National Institute Of Agrobiological Resources
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