Biologia Plantarum

, Volume 46, Issue 4, pp 491–506 | Cite as

Participation of Phytohormones in the Stomatal Regulation of Gas Exchange During Water Stress

  • J. Pospíšilová
Article

Abstract

Almost all processes in the life of a plant are directly or indirectly affected by both stresses and phytohormones. Nevertheless, apart from abscisic acid, the role of phytohormones in plant response to water stress is far from being fully elucidated. This review tries to answer the question whether interactions between abscisic acid and some other phytohormones might be important in the regulation of stomatal opening during water stress and subsequent rehydration. Firstly, it describes the changes in the contents of individual endogenous phytohormones during water stress. Then, it deals with the effects of applied phytohormones on stomatal opening, and on transpiration and photosynthetic rates in different plants species. Finally, it focuses on the alleviation or stimulation of absicic acid-induced stomatal closure by application of other phytohormones.

abscisic acid auxins brassinosteroids chlorophyll cytokinins ethylene gibberellins jasmonates leaf water potential net photosynthetic rate stomatal conductance transpiration rate 

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© Kluwer Academic Publishers 2003

Authors and Affiliations

  • J. Pospíšilová
    • 1
  1. 1.Institute of Experimental BotanyAcademy of Sciences of the Czech RepublicPraha 6Czech Republic

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