Studies on quinic acid biosynthesis in Quercus pedunculata Ehrh. seedlings
スポンサーリンク
概要
- 論文の詳細を見る
The time course of ^<14>C incorporation into shikimic (SA) and quinic acids (QA) was examined in Quercus pedunculata seedlings of different age fed with ^<14>C glucose-6-phosphate (G6P) or ^<14>C dehydroquinic acid (DHQ). QA was actively synthesized from G6P and exhibited the highest radioactivity among the organic acids. In contrast, DHQ, a good precursor of shikimate, was poor for quinate synthesis. In both cases, QA and SA presented parallel changes in specific radioactivities with time. The experimental results suggest that in oak leaves Q;A is formed by a route that is independent of the shikimate pathway and that this compound undergoes an important turnover. Moreover, depending on the physiological state of the plants, there are differences in the relative biosynthetic rates of the two acids.
- 日本植物生理学会の論文
著者
-
Boudet Alain
Centre De Physiologie Vegetale Laboraloire Associe Au C.n.r.s. N^゜241 Universite Paul Sabatier
-
Boudet Alain
Centre De Physiologie Vegetale Laboratoire Associe
関連論文
- Studies on quinic acid biosynthesis in Quercus pedunculata Ehrh. seedlings
- Functional Properties of Protein Kinase(s) and Phosphatase(s) Converting Quinate : NAD^+ Oxidoreductase into Active and Deactivated Forms in Carrot Cell Suspension Cultures
- Association of the quinate : NAD^+ oxidoreductase with one dehydroquinate hydro-lyase isoenzyme in corn seedlings
- 3-Dcoxy-D-arabino heptulosonate 7-phosphate synthase from Zea mays : General properties and regulation by tryptophan