The apparent feedforward response of stomata to air vapour pressure deficit: information revealed by different experimental procedures with two rainforest trees
Open Access
- 1 January 1997
- journal article
- Published by Wiley in Plant, Cell & Environment
- Vol. 20 (1) , 142-145
- https://doi.org/10.1046/j.1365-3040.1997.d01-14.x
Abstract
A decrease in steady‐state leaf transpiration rate with increased vapour pressure difference between leaf and air, which is reversible and independent of leaf water status, is evidence for feedforward control of stomatal aperture (Cowan 1977). A recent survey of gas exchange data by Monteith (1995), covering 52 sets of measurements on 16 species, reported that evidence for feedforward control was rare and usually reliant on a single point. We conducted gas exchange experiments on an additional 13 species and observed an apparent feedforward response in only two. However, the response was not reversible and depended upon experimental procedure. In view of this we discuss the appropriate use of the term ‘feedforward’.Keywords
This publication has 19 references indexed in Scilit:
- A reinterpretation of stomatal responses to humidityPlant, Cell & Environment, 1995
- Asymmetric patchy stomatal closure for the two surfaces of Xanthium strumarium L. leaves at low humidityPlant, Cell & Environment, 1993
- Stomatal responses to humidity in air and heloxPlant, Cell & Environment, 1991
- Rapid Adjustment of Guard-Cell Abscisic Acid Levels to Current Leaf-Water StatusPlant Physiology, 1991
- Correlation between the Carbon Isotope Discrimination in Leaf Starch and Sugars of C3 Plants and the Ratio of Intercellular and Atmospheric Partial Pressures of Carbon DioxidePlant Physiology, 1988
- Feedforward Responses of Stomata to HumidityFunctional Plant Biology, 1978
- Stomatal Behaviour and EnvironmentPublished by Elsevier ,1978
- Regulation of Water Transport in the Soil—Plant—Atmosphere ContinuumPublished by Springer Nature ,1975
- CONTROLLED ENVIRONMENT STUDIES OF THE NATURE AND ORIGINS OF WATER DEFICITS IN PLANTSNew Phytologist, 1965
- IX. Observations on stomataPhilosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1898