Abstract
Fine-tuned regulation of stomatal aperture size is key to the survival of land plants. This chapter discusses the roles of heterotrimeric G proteins in the regulation of stomatal movements and ion channel activities of guard cells. Evidence implicating heterotrimeric G protein function in light-induced stomatal opening, ABA-induced stomatal closure, and pathogen-induced stomatal movements is described from early pharmacological experiments to phenotypic studies of Arabidopsis heterotrimeric G protein mutants.
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Acknowledgments
Research on G protein regulation of stomatal function in the authors’ laboratory is supported by grants from the U.S. National Science Foundation and U.S. Department of Agriculture to Sarah M. Assmann. The authors also thank Sarah M. Assmann for her helpful comments and suggestions on this manuscript.
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Nilson, S.E., Zhang, W. (2010). Heterotrimeric G Protein Regulation of Stomatal Movements. In: Yalovsky, S., Baluška, F., Jones, A. (eds) Integrated G Proteins Signaling in Plants. Signaling and Communication in Plants. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03524-1_10
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