Temporal dynamics of stomatal behavior: modeling and implications for photosynthesis and water use

Vialet-Chabrand, Silvere R.M. and Matthews, Jack S.A. and McAusland, Lorna and Blatt, Michael R. and Griffiths, Howard and Lawson, Tracy (2017) Temporal dynamics of stomatal behavior: modeling and implications for photosynthesis and water use. Plant Physiology, 174 (2). pp. 603-613. ISSN 0032-0889

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Abstract

Stomata control gaseous exchange between the leaf and bulk atmosphere limiting CO2 uptake for photosynthesis and water loss by transpiration, and therefore determine plant productivity and water use efficiency. In order to function efficiently, stomata must respond to internal and external signals to balance these two diffusional processes. However, stomatal responses are an order of magnitude slower than photosynthetic responses, which lead to a disconnection between gs and A. Here we discuss the influence of anatomical features on the rapidity of stomatal movement, and explore the temporal relationship between A and gs responses. We describe how these mechanisms have been included into recent modelling efforts, increasing the accuracy and predictive power under dynamic environmental conditions, such as those experienced in the field.

Item Type: Article
Keywords: speed of response, stomatal size, stomatal density, dynamic model, fluctuating light, temporal
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Biosciences > Division of Plant and Crop Sciences
Identification Number: 10.1104/pp.17.00125
Depositing User: Eprints, Support
Date Deposited: 25 Oct 2017 13:12
Last Modified: 25 Oct 2017 15:32
URI: http://eprints.nottingham.ac.uk/id/eprint/47564

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