Phosphoinositides and protein phosphorylation in plant signal transduction.
A highly complex set of interactions are responsible for the perception and transduction of signals in living cells. It is likely that a number of fundamental principles of signalling mechanisms are of early evolutionary origin, have been highly conserved and are shared by apparently disparate organisms. Possible clues to the biochemical and molecular basis of plant signalling might thus be obtained from research carried out on other eukaryotes. Like mammalian cells, plant cells have been found to possess a phosphoinositide system and also make extensive use of phosphorylation and dephosphorylation cascades. The potential role of these mechanisms in plant cell signalling is reviewed.
Drøbak
B K
BK
Department of Cell Biology, John Innes Institute, John Innes Centre, Norwich, UK.
D000595:Amino Acid Sequence; D000818:Animals; D002118:Calcium / Q000502:physiology; D002467:Cell Nucleus / Q000378:metabolism; D003599:Cytoskeleton / Q000378:metabolism; D008322:Mammals / Q000502:physiology; D008954:Models, Biological; D008969:Molecular Sequence Data; D010716:Phosphatidylinositols / Q000502:physiology*; D010766:Phosphorylation; D010940:Plant Proteins / Q000378:metabolism*; D011494:Protein Kinases / Q000502:physiology*; D011499:Protein Processing, Post-Translational; D011505:Protein-Tyrosine Kinases / Q000502:physiology; D011956:Receptors, Cell Surface / Q000378:metabolism; D015398:Signal Transduction
D010716:Phosphatidylinositols; D010940:Plant Proteins; D011956:Receptors, Cell Surface; D011494:Protein Kinases; D011505:Protein-Tyrosine Kinases; D002118:Calcium