Update on Stomatal Signaling Networks Calcium-Dependent and -Independent Stomatal Signaling Network and Compensatory Feedback Control of Stomatal Opening via Ca2+ Sensitivity Priming[W]
نویسندگان
چکیده
Institute of Technology, University of Tartu, Tartu 50411, Estonia (K.L., E.M., H.K.); Division of Biological Sciences, Cell and Developmental Biology Section, University of California, San Diego, La Jolla, California 92093–0116 (B.B., J.L., J.I.S.); College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China (J.L.); Institute of Plant Physiology and Ecology, Shanghai Institute for Biological Sciences, The Chinese Academy of Sciences, Shanghai 200032, China (Y.-F.W.); and Department of Pharmacology, School of Medicine, Howard Hughes Medical Institute, University of California, San Diego, La Jolla, California 92093–0654 (M.M.K., S.S.T.)
منابع مشابه
Guard cell ABA and CO2 signaling network updates and Ca2+ sensor priming hypothesis.
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 CO(2) concentrations. Recent advances have been made in understanding ABA signaling and in characterizing CO(2) transduction mechan...
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Leaf stomata close in response to high carbon dioxide levels and open at low CO(2). CO(2) concentrations in leaves are altered by daily dark/light cycles, as well as the continuing rise in atmospheric CO(2). Relative to abscisic acid and blue light signaling, little is known about the molecular, cellular, and genetic mechanisms of CO(2) signaling in guard cells. Interestingly, we report that re...
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Organelle-nuclear retrograde signaling regulates gene expression, but its roles in specialized cells and integration with hormonal signaling remain enigmatic. Here we show that the SAL1-PAP (3'-phosphoadenosine 5'- phosphate) retrograde pathway interacts with abscisic acid (ABA) signaling to regulate stomatal closure and seed germination in Arabidopsis. Genetically or exogenously manipulating P...
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Abscisic acid (ABA) signal transduction has been proposed to utilize cytosolic Ca(2+) in guard cell ion channel regulation. However, genetic mutants in Ca(2+) sensors that impair guard cell or plant ion channel signaling responses have not been identified, and whether Ca(2+)-independent ABA signaling mechanisms suffice for a full response remains unclear. Calcium-dependent protein kinases (CDPK...
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