biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 46:491-506, 2003 | DOI: 10.1023/A:1024894923865

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

J. Pospíšilová1
1 Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Praha 6, Czech Republic

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.

Keywords: abscisic acid; auxins; brassinosteroids; chlorophyll; cytokinins; ethylene; gibberellins; jasmonates; leaf water potential; net photosynthetic rate; stomatal conductance; transpiration rate
Subjects: abscisic acid (ABA); auxins; brassinosteroids; chlorophyll, water stress; cytokinins; ethylene, water stress; gas exchange, drought stress; gas exchange, water stress; gibberellins; jasmonates, jasmonic acid; stomata opening, phytohormones; water potential, gas exchange; water stress, gas exchange

Prepublished online: May 1, 2003; Published: December 1, 2003  Show citation

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Pospíšilová, J. (2003). Participation of Phytohormones in the Stomatal Regulation of Gas Exchange During Water Stress. Biologia plantarum, 46(4), 491-506. doi: 10.1023/A:1024894923865
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