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Acquiring control: the evolution of stomatal signalling pathways


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Sussmilch, FC ORCID: 0000-0002-8659-1125, Schultz, J, Hedrich, R and Roelfsema, MRG 2019 , 'Acquiring control: the evolution of stomatal signalling pathways' , Trends in Plant Science, vol. 24, no. 4 , pp. 342-351 , doi: 10.1016/j.tplants.2019.01.002.

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In vascular plants, stomata balance two opposing functions: they open to facilitate CO2 uptake and close to prevent excessive water loss. Here, we discuss the evolution of three major signalling pathways that are known to control stomatal movements in angiosperms in response to light, CO2, and abscisic acid (ABA). We examine the evolutionary origins of key signalling genes involved in these pathways, and compare their expression patterns between an angiosperm and moss. We propose that variation in stomatal sensitivity to stimuli between plant groups are rooted in differences in: (i) gene presence/absence, (ii) specificity of gene spatial expression pattern, and (iii) protein characteristics and functional interactions.

Item Type: Article
Authors/Creators:Sussmilch, FC and Schultz, J and Hedrich, R and Roelfsema, MRG
Keywords: stomata, evolution, signalling pathway, light, CO2, abscisic acid (ABA)
Journal or Publication Title: Trends in Plant Science
Publisher: Elsevier Science London
ISSN: 1360-1385
DOI / ID Number: 10.1016/j.tplants.2019.01.002
Copyright Information:

Copyright 2019 This is the Accepted Manuscript of an article published byElsevier in Trends in Plant Science on February 20, 2019, available online at

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