This Article Full Text (PDF) 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 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 Google Scholar Google Scholar Articles by Harris, M. J. Articles by Outlaw, W. H. Search for Related Content PubMed PubMed Citation Articles by Harris, M. J. Articles by Outlaw, W. H., Jr. Agricola Articles by Harris, M. J. Articles by Outlaw, W. H.

Molecular Biology and Gene Regulation

Rapid Adjustment of Guard-Cell Abscisic Acid Levels to Current Leaf-Water Status ¹

Department of Biological Science (B-157), Florida State University, Tallahassee, Florida 32306-3050

Detached broad bean (Vicia faba L.) leaflets were water stressed; within 15 minutes, guard-cell abscisic acid (ABA) concentration increased ninefold. This result eliminates the apparent discrepancy raised by reports of no correlation between initial water-stress effects on stomata and leaf ABA concentration. Six hours after stress relief, guard-cell ABA concentration was near the prestress value, which would seem to implicate other factors in stress aftereffects on stomata.

¹ Supported by a U.S. Department of Energy grant to W. H. O.

This article has been cited by other articles:

				Y. Tanaka, T. Sano, M. Tamaoki, N. Nakajima, N. Kondo, and S. Hasezawa Ethylene Inhibits Abscisic Acid-Induced Stomatal Closure in Arabidopsis Plant Physiology, August 1, 2005; 138(4): 2337 - 2343. [Abstract] [Full Text] [PDF]

				C. Borel and T. Simonneau Is the ABA concentration in the sap collected by pressurizing leaves relevant for analysing drought effects on stomata? Evidence from ABA-fed leaves of transgenic plants with modified capacities to synthesize ABA J. Exp. Bot., February 1, 2002; 53(367): 287 - 296. [Abstract] [Full Text] [PDF]

				B.V. Milborrow The pathway of biosynthesis of abscisic acid in vascular plants: a review of the present state of knowledge of ABA biosynthesis J. Exp. Bot., June 1, 2001; 52(359): 1145 - 1164. [Abstract] [Full Text] [PDF]

				S. Q. Zhang, W. H. Outlaw, and K. Aghoram Relationship between changes in the guard cell abscisic-acid content and other stress-related physiological parameters in intact plants J. Exp. Bot., February 1, 2001; 52(355): 301 - 308. [Abstract] [Full Text] [PDF]

				A.G. Netting pH, abscisic acid and the integration of metabolism in plants under stressed and non-stressed conditions: cellular responses to stress and their implication for plant water relations J. Exp. Bot., February 2, 2000; 51(343): 147 - 158. [Abstract] [Full Text] [PDF]