Isoenzymes of the Glycolytic and Pentose Phosphate Pathways in Proplastids from the Developing Endosperm of Ricinis communis L.
- 1 June 1978
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 61 (6) , 871-877
- https://doi.org/10.1104/pp.61.6.871
Abstract
Two isoenzymes each of hexose-P [phosphate] isomerase, aldolase and 6-P-gluconate dehydrogenase were found in the endosperm of developing castor beans (R. communis L.). One isoenzyme for each activity is present in the proplastic fraction. Only one form of glucose-6-P dehydrogenase was found. Apparently the partition of an enzyme activity between cytosol and plastid is regulated by the synthesis of isoenzymes which are subcellular site specific. The use of diethylaminoethyl-Sephadex A-25 sievorptive chromatography for the preparation of plant enzymes is described.This publication has 16 references indexed in Scilit:
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