TY - JOUR
T1 - Guard cell ABA and CO2 signaling network updates and Ca2+ sensor priming hypothesis
AU - Israelsson, Maria
AU - Siegel, Robert S.
AU - Young, Jared
AU - Hashimoto, Mimi
AU - Iba, Koh
AU - Schroeder, Julian I.
N1 - Funding Information:
We apologize to those colleagues whose research is not discussed in this update because of space limitations. We thank Roger Tsien (HHMI, University of California, San Diego) for discussions and suggestions related to cameleons, Alistair Hetherington for comments on the manuscript and Daniel Mackesey for support. Research in the authors’ laboratory was supported by grants from the US National Institutes of Health (Grant R01GM060396) and National Science Foundation (Grant MCB 0417118) to JIS, and by CREST, JST and the Japan Society of the Promotion of Science (18657018) grants to KI. MI is a Formas post-doctoral fellow.
PY - 2006/12
Y1 - 2006/12
N2 - Stomatal pores in the epidermis of plants enable gas exchange between plants and the atmosphere, a process vital to plant life. Pairs of specialized guard cells surround and control stomatal apertures. Stomatal closing is induced by abscisic acid (ABA) and elevated CO2 concentrations. Recent advances have been made in understanding ABA signaling and in characterizing CO2 transduction mechanisms and CO2 signaling mutants. In addition, models of Ca2+-dependent and Ca2+-independent signaling in guard cells have been developed and a new hypothesis has been formed in which physiological stimuli are proposed to prime Ca2+ sensors, thus enabling specificity in Ca2+-dependent signal transduction.
AB - Stomatal pores in the epidermis of plants enable gas exchange between plants and the atmosphere, a process vital to plant life. Pairs of specialized guard cells surround and control stomatal apertures. Stomatal closing is induced by abscisic acid (ABA) and elevated CO2 concentrations. Recent advances have been made in understanding ABA signaling and in characterizing CO2 transduction mechanisms and CO2 signaling mutants. In addition, models of Ca2+-dependent and Ca2+-independent signaling in guard cells have been developed and a new hypothesis has been formed in which physiological stimuli are proposed to prime Ca2+ sensors, thus enabling specificity in Ca2+-dependent signal transduction.
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U2 - 10.1016/j.pbi.2006.09.006
DO - 10.1016/j.pbi.2006.09.006
M3 - Review article
C2 - 17010657
AN - SCOPUS:33749560930
SN - 1369-5266
VL - 9
SP - 654
EP - 663
JO - Current Opinion in Plant Biology
JF - Current Opinion in Plant Biology
IS - 6
ER -