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


     

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 (22)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Kathiresan, A.
Right arrow Articles by Reid, D. M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kathiresan, A.
Right arrow Articles by Reid, D. M.
Agricola
Right arrow Articles by Kathiresan, A.
Right arrow Articles by Reid, D. M.

PLANT PHYSIOLOGY , Vol 115, Issue 1 129-135, Copyright © 1997 by American Society of Plant Biologists

CELL BIOLOGY AND SIGNAL TRANSDUCTION

[gamma]-Aminobutyric Acid Stimulates Ethylene Biosynthesis in Sunflower

A. Kathiresan, P. Tung, C. C. Chinnappa and D. M. Reid
Plant Physiology Research Group, Department of Biological Sciences, The University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4

[gamma]-Aminobutyric acid (GABA), a nonprotein amino acid, is often accumulated in plants following environmental stimuli that can also cause ethylene production. We have investigated the relationship between GABA and ethylene production in excised sunflower (Helianthus annuus L.) tissues. Exogenous GABA causes up to a 14-fold increase in the ethylene production rate after about 12 h. Cotyledons fed with [14C]GABA did not release substantial amounts of radioactive ethylene despite its chemical similarity to 1-aminocyclopropane-1-carboxylic acid (ACC), indicating that GABA is not likely to be an alternative precursor for ethylene. GABA causes increases in ACC synthase mRNA accumulation, ACC levels, ACC oxidase mRNA levels, and in vitro ACC oxidase activity. In the presence of aminoethoxyvinylglycine or [alpha]-aminoisobutyric acid, GABA did not stimulate ethylene production. We therefore conclude that GABA stimulates ethylene biosynthesis mainly by promoting ACC synthase transcript abundance. Possible roles of GABA as a signal transducer are suggested.


This article has been cited by other articles:


Home page
 Plant Physiol.Home page
J. Kreuzwieser, J. Hauberg, K. A. Howell, A. Carroll, H. Rennenberg, A. H. Millar, and J. Whelan
Differential Response of Gray Poplar Leaves and Roots Underpins Stress Adaptation during Hypoxia
Plant Physiology, January 1, 2009; 149(1): 461 - 473.
[Abstract] [Full Text] [PDF]

Home page
 Plant CellHome page
J. H.M. Schippers, A. Nunes-Nesi, R. Apetrei, J. Hille, A. R. Fernie, and P. P. Dijkwel
The Arabidopsis onset of leaf death5 Mutation of Quinolinate Synthase Affects Nicotinamide Adenine Dinucleotide Biosynthesis and Causes Early Ageing
PLANT CELL, October 1, 2008; 20(10): 2909 - 2925.
[Abstract] [Full Text] [PDF]

Home page
 Plant Physiol.Home page
C. Diaz, S. Purdy, A. Christ, J.-F. Morot-Gaudry, A. Wingler, and C. Masclaux-Daubresse
Characterization of Markers to Determine the Extent and Variability of Leaf Senescence in Arabidopsis. A Metabolic Profiling Approach
Plant Physiology, June 1, 2005; 138(2): 898 - 908.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1997 by the American Society of Plant Biologists