Plant Physiol.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 88:239-241 (1988)
© 1988 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (16)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Keller, F.
Right arrow Articles by Wiemken, A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Keller, F.
Right arrow Articles by Wiemken, A.
Agricola
Right arrow Articles by Keller, F.
Right arrow Articles by Wiemken, A.
Metabolism and Enzymology

Sucrose Synthase, a Cytosolic Enzyme in Protoplasts of Jerusalem Artichoke Tubers (Helianthus tuberosus L.) 1

Felix Keller, Marco Frehner2 and Andres Wiemken3

University of Zürich, Institute of Plant Biology, Zollikerstrasse 107, CH-8008 Zürich, Switzerland

The exact subcellular location of sucrose synthase (UDP-D-glucose: D-fructose 2-{alpha}-D-glucosyltransferase, EC 2.4.1.13) in Helianthus tuberosus tubers was studied by comparison of its activity in protoplasts with that of vacuoles isolated from them. Assuming 100% of the {beta}-N-acetylglucosaminidase activity to be of vacuolar origin, less than 5% of both the sucrose synthase activity and the extravacuolar marker NAD-malate dehydrogenase was detected in the vacuole preparations. Sucrose synthase is therefore an extravacuolar enzyme. Its role in the inulin metabolism of H. tuberosus is discussed.

2 Present address: Swiss Federal Institute of Technology, Department of Plant Science, ETH-Zentrum, CH-8092 Zürich, Switzerland.

3 Present address: University of Basel, Department of Botany, Hebelstr. 1, CH-4056 Basel, Switzerland.

1 This work was supported by the Swiss National Science Foundation.




This article has been cited by other articles:


Home page
 Plant Cell PhysiolHome page
J. G. A. Nunez, J. Kronenberger, S. Wuilleme, L. Lepiniec, and C. Rochat
Study of AtSUS2 Localization in Seeds Reveals a Strong Association with Plastids
Plant Cell Physiol., October 1, 2008; 49(10): 1621 - 1626.
[Abstract] [Full Text] [PDF]

Home page
 J Exp BotHome page
E. Etxeberria and P. Gonzalez
Evidence for a tonoplast-associated form of sucrose synthase and its potential involvement in sucrose mobilization from the vacuole
J. Exp. Bot., May 1, 2003; 54(386): 1407 - 1414.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1988 by the American Society of Plant Biologists