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Stomatal control of xylem embolism
Abstract
Abstract. The potential role of stomatal closure in the control of xylem embolism is investigated by means of a simple model of hydraulic flow in plants. Maintenance of a maximally efficient conducting system requires the stomata to close in an appropriate fashion as evaporative demand increases in order to prevent shoot water potentials falling below the threshold value at which cavitations occur. The model showed that the optimal stomatal behaviour required depends on soil water availability. Further analysis of the model demonstrated that there could be certain circumstances where loss of a proportion of the conducting tissue by embolisms can, perhaps surprisingly, be beneficial in terms of maximizing stomatal aperture and hence short‐term productivity. The results are discussed in relation to the signals controlling stomatal aperture, and it is shown that (1) optimal control cannot be obtained using information on leaf water potential alone, and (2) information relating to soil water potential is a necessary requirement for optimal control.
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Citations
Cited by
Understanding plant responses to drought—from genes to the whole plant.
Chaves, M. M., Maroco, J. P., & Pereira, J. S. (2003) · Functional Plant Biology · doi:10.1071/fp02076 · Cited by 3,845
Plant resistance to drought depends on timely stomatal closure
Martin‐StPaul, N., Delzon, S., & Cochard, H. (2017) · Ecology Letters · doi:10.1111/ele.12851 · Cited by 820
Limitation of plant water use by rhizosphere and xylem conductance: results from a model
Sperry, J. S., Adler, F. R., Campbell, G. S., & Comstock, J. P. (1998) · Plant, Cell & Environment · doi:10.1046/j.1365-3040.1998.00287.x · Cited by 785
An overview of models of stomatal conductance at the leaf level
DAMOUR, G., SIMONNEAU, T., COCHARD, H., & URBAN, L. (2010) · Plant, Cell & Environment · doi:10.1111/j.1365-3040.2010.02181.x · Cited by 710
A coupled model of stomatal conductance, photosynthesis and transpiration
TUZET, A., PERRIER, A., & LEUNING, R. (2003) · Plant, Cell & Environment · doi:10.1046/j.1365-3040.2003.01035.x · Cited by 695
Metadata
- Authors
- JONES, H. G., & SUTHERLAND, R. A.
- Venue
- Plant, Cell & Environment
- Publisher
- Wiley
- Published
- 1991-08
- Volume
- 14
- Issue
- 6
- Pages
- 607-612
- ISSN
- 0140-7791 (ISSN-L)
- 1365-3040
- OpenAlex
- W2110172531
- Cited by
- 421
- References
- 0
- FWCI
- 7.52
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Stomatal control of xylem embolism. https://app.cochat.ai/papers/10.1111/j.1365-3040.1991.tb01532.x
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- JONES, H. G., & SUTHERLAND, R. A. (1991). Stomatal control of xylem embolism. Plant, Cell & Environment. https://doi.org/10.1111/j.1365-3040.1991.tb01532.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
