Plant and Cell Physiology, 2001, Vol. 42, No. 2 236-239
© 2001 Oxford University Press
Induction of PEP Carboxylase and Crassulacean Acid Metabolism by Gibberellic Acid in Mesembryanthemum crystallinum
1 Division of Natural Science and Mathematics, Western Oregon University, Monmouth, OR 97361, U.S.A. 2 School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, U.S.A. 3 Cirtrus Research and Education Center, University of Florida, 700 Experiment Station Road, Lake Alfred, FL 33850, U.S.A.
The induction of Crassulacean acid metabolism in Mesembryanthemum crystallinum was investigated in response to foliar application of gibberellic acid (GA). After 5 weeks of treatment, GA-treated plants showed 1.7- to almost a 4-fold increase of phosphoenolpyruvate carboxylase (PEPcase) activity with a concomitant increase in acid metabolism when compared to control plants. Immunoblot analysis indicated an increase in the PEPcase protein similar to that of salt treatment while Rubisco did not show a similar rise. The results indicate that exogenously applied GA accelerates plant developmental expression of PEPcase and Crassulacean acid metabolism in M. crystallinum.
4 Corresponding author: E-mail, guralnl@wou.edu; Fax, +1-503-838-8072.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
A. Jan, H. Nakamura, H. Handa, H. Ichikawa, H. Matsumoto, and S. Komatsu Gibberellin Regulates Mitochondrial Pyruvate Dehydrogenase Activity in Rice Plant Cell Physiol., February 1, 2006; 47(2): 244 - 253. [Abstract] [Full Text] [PDF] |
||||
![]() |
U. LUTTGE Ecophysiology of Crassulacean Acid Metabolism (CAM) Ann. Bot., June 1, 2004; 93(6): 629 - 652. [Abstract] [Full Text] [PDF] |
||||

