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Convergence of the abscisic acid, CO2, and extracellular calcium signal transduction pathways in stomatal guard cells.
Division of Biological Sciences, University of Lancaster, United Kingdom.
We show that guard cells from Arabidopsis thaliana plants carrying the abscisic acid-insensitive mutations abi1 and abi2 fail to respond to CO2 and extracellular calcium. This demonstrates that the signal transduction pathways for all three stimuli converge on, or close to, the ABI1 and ABI2 gene products.
PMID: 9276963 [PubMed - indexed for MEDLINE]
PMCID: PMC158450
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Cited by 6 PubMed Central articles
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CO(2) signaling in guard cells: calcium sensitivity response modulation, a Ca(2+)-independent phase, and CO(2) insensitivity of the gca2 mutant.
Young JJ, Mehta S, Israelsson M, Godoski J, Grill E, Schroeder JI.
Proc Natl Acad Sci U S A. 2006 May 9; 103(19):7506-11. Epub 2006 May 1.
[Proc Natl Acad Sci U S A. 2006]
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CO(2)-triggered chloride release from guard cells in intact fava bean leaves. Kinetics of the onset of stomatal closure.
Hanstein SM, Felle HH.
Plant Physiol. 2002 Oct; 130(2):940-50.
[Plant Physiol. 2002]
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ABI1 protein phosphatase 2C is a negative regulator of abscisic acid signaling.
Gosti F, Beaudoin N, Serizet C, Webb AA, Vartanian N, Giraudat J.
Plant Cell. 1999 Oct; 11(10):1897-910.
[Plant Cell. 1999]
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