This Article Full Text Full Text (PDF) All Versions of this Article: 139/1/267    most recent pp.105.065698v1 Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Web of Science (30) Citing Articles via Google Scholar Google Scholar Articles by Jakab, G. Articles by Mauch-Mani, B. Search for Related Content PubMed PubMed Citation Articles by Jakab, G. Articles by Mauch-Mani, B. Agricola Articles by Jakab, G. Articles by Mauch-Mani, B. Related Collections Biology of Transpiration

ENVIRONMENTAL STRESS AND ADAPTATION

Enhancing Arabidopsis Salt and Drought Stress Tolerance by Chemical Priming for Its Abscisic Acid Responses¹

Institute of Botany, Biochemistry, University of Neuchâtel, CH–2007 Neuchatel, Switzerland (G.J., J.T., V.F., L.Z., B.M.-M.); Department of Biology, Plant Biology, University of Fribourg, CH–1700 Fribourg, Switzerland (G.J., J.-P.M.); and Departamento de Ciencias Experimentales, Área de Fisiología Vegetal, Universitat Jaume I, 12071 Castellon, Spain (V.F.)

Drought and salt stress tolerance of Arabidopsis (Arabidopsis thaliana) plants increased following treatment with the nonprotein amino acid -aminobutyric acid (BABA), known as an inducer of resistance against infection of plants by numerous pathogens. BABA-pretreated plants showed earlier and higher expression of the salicylic acid-dependent PR-1 and PR-5 and the abscisic acid (ABA)-dependent RAB-18 and RD-29A genes following salt and drought stress. However, non-expressor of pathogenesis-related genes 1 and constitutive expressor of pathogenesis-related genes 1 mutants as well as transgenic NahG plants, all affected in the salicylic acid signal transduction pathway, still showed increased salt and drought tolerance after BABA treatment. On the contrary, the ABA deficient 1 and ABA insensitive 4 mutants, both impaired in the ABA-signaling pathway, could not be protected by BABA application. Our data demonstrate that BABA-induced water stress tolerance is based on enhanced ABA accumulation resulting in accelerated stress gene expression and stomatal closure. Here, we show a possibility to increase plant tolerance for these abiotic stresses through effective priming of the preexisting defense pathways without resorting to genetic alterations.

² These authors contributed equally to the paper.

³ Present address: Section of Phytopathology, Faculty of Biology, Utrecht University, 3584 CA Utrecht, The Netherlands.

Article, publication date, and citation information can be found at www.plantphysiol.org/cgi/doi/10.1104/pp.105.065698.

^* Corresponding author; e-mail gabor.jakab{at}unine.ch; fax 41–32–718–2201.

Received May 17, 2005; returned for revision June 17, 2005; accepted June 17, 2005.

This article has been cited by other articles:

				B. O. R. Bargmann, A. M. Laxalt, B. t. Riet, B. van Schooten, E. Merquiol, C. Testerink, M. A. Haring, D. Bartels, and T. Munnik Multiple PLDs Required for High Salinity and Water Deficit Tolerance in Plants Plant Cell Physiol., January 1, 2009; 50(1): 78 - 89. [Abstract] [Full Text] [PDF]

				M. Yasuda, A. Ishikawa, Y. Jikumaru, M. Seki, T. Umezawa, T. Asami, A. Maruyama-Nakashita, T. Kudo, K. Shinozaki, S. Yoshida, et al. Antagonistic Interaction between Systemic Acquired Resistance and the Abscisic Acid-Mediated Abiotic Stress Response in Arabidopsis PLANT CELL, June 1, 2008; 20(6): 1678 - 1692. [Abstract] [Full Text] [PDF]

				I.-P. Ahn, S. Kim, Y.-H. Lee, and S.-C. Suh Vitamin B1-Induced Priming Is Dependent on Hydrogen Peroxide and the NPR1 Gene in Arabidopsis Plant Physiology, February 1, 2007; 143(2): 838 - 848. [Abstract] [Full Text] [PDF]

				A. Saez, N. Robert, M. H. Maktabi, J. I. Schroeder, R. Serrano, and P. L. Rodriguez Enhancement of Abscisic Acid Sensitivity and Reduction of Water Consumption in Arabidopsis by Combined Inactivation of the Protein Phosphatases Type 2C ABI1 and HAB1 Plant Physiology, August 1, 2006; 141(4): 1389 - 1399. [Abstract] [Full Text] [PDF]

				M. van Hulten, M. Pelser, L. C. van Loon, C. M. J. Pieterse, and J. Ton Costs and benefits of priming for defense in Arabidopsis PNAS, April 4, 2006; 103(14): 5602 - 5607. [Abstract] [Full Text] [PDF]