Skip Navigation

This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
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 ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (7)
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Bourbouloux, A.
Right arrow Articles by Delrot, S.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Bourbouloux, A.
Right arrow Articles by Delrot, S.
Agricola
Right arrow Articles by Bourbouloux, A.
Right arrow Articles by Delrot, S.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Journal of Experimental Botany, Vol 49, 239-247, Copyright © 1998 by Oxford University Press

ARTICLES

Effects of salicylic acid on sugar and amino acid uptake

A Bourbouloux, P Raymond and S Delrot
Laboratoire de Physiologie et Biochimie Vegetales, ERS CNRS 6099, Batiment Botanique, 40 Avenue du Recteur Pineau, F-86022 Poitiers Cedex, France; INRA, Station de Physiologie Vegetale, F-33883 Villenave d'Ornon Cedex, France; Corresponding author e-mail: Andree.Bourbouloux@cri.univ-poitiers.fr

Ageing of sugar beet (Beta vulgaris L.) leaf discs induces a large stimulation of sugar and amino acid uptake. This may result from an hormonal imbalance. The effects of various hormones added during the ageing period were studied on sugar and amino acid uptake. Salicylic acid (SA) inhibited both valine and sucrose uptake in a concentration-dependent manner from 10 M to 200 M. This inhibition was specific for SA; various mono- and di-substituted analogues of benzoic acid did not significantly affect uptake, except for 2,4-dichlorobenzoic acid. SA inhibited the active component of uptake, and the inhibition was reversible upon its removal. SA did not affect the amounts of transcripts encoding the sucrose transporter protein. SA decreased medium acidification due to the activity of the plasma membrane H+-ATPase, without affecting the amounts of ATPase transcripts and ATPase protein. SA significantly decreased the energy charge of the tissues during ageing. It is suggested that SA may affect the uptake of sugars and amino acids by indirect inhibition of the plasma membrane H+-ATPase energizing this process.Key words: Ageing, Beta vulgaris, energy charge, membrane transport, nutrient uptake.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Plant CellHome page
S. Lalonde, E. Boles, H. Hellmann, L. Barker, J. W. Patrick, W. B. Frommer, and J. M. Ward
The Dual Function of Sugar Carriers: Transport and Sugar Sensing
PLANT CELL, April 1, 1999; 11(4): 707 - 726.
[Full Text]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.