title: Cell signaling under salt, water and cold stresses.
abstract: Forward genetics and biochemical approaches to studying plant responses to salt, water and cold stresses began to bear fruit recently. Analysis of salt overly sensitive (sos) Arabidopsis mutants revealed a novel calcium-regulated protein kinase pathway for response to the ionic aspect of salt stress. In-gel kinase assays identified several SOS-independent protein kinases that are either activated specifically by osmotic stress or by multiple abiotic and biotic stresses. Molecular analysis revealed a transcriptional cascade in cold-regulated gene expression.
authors.affiliation: Department of Plant Sciences, University of Arizona, Tucson, Arizona 85721, USA. jkzhu@ag.arizona.edu
authors.forename: J K
authors.initials: JK
authors.lastname: Zhu
mesh_terms: D000222:Adaptation, Physiological / Q000235:genetics; D000251:Adenosine Triphosphatases / Q000235:genetics / Q000378:metabolism; D002352:Carrier Proteins / Q000235:genetics / Q000378:metabolism; D003080:Cold Temperature; D018506:Gene Expression Regulation, Plant; D020928:Mitogen-Activated Protein Kinases / Q000235:genetics / Q000378:metabolism; D010944:Plants / Q000235:genetics / Q000378:metabolism*; D013014:SOS Response, Genetics; D012492:Salts / Q000378:metabolism; D015398:Signal Transduction / Q000235:genetics; D014867:Water / Q000378:metabolism
chemical_list: D002352:Carrier Proteins; D012492:Salts; D014867:Water; D020928:Mitogen-Activated Protein Kinases; D000251:Adenosine Triphosphatases; C420204:RING-finger binding protein, Oryctolagus cuniculus