Signal recognition and transduction mediated by the tomato Pto kinase: a paradigm of innate immunity in plants.
Plant disease resistance is the result of an innate host defense mechanism, which relies on the ability of the plant to recognize pathogen invasion and to efficiently mount defense responses. In tomato, resistance to the pathogen Pseudomonas syringae is mediated by the specific interaction between the plant serine/threonine kinase Pto and the bacterial protein AvrPto. This article reviews molecular and biochemical properties that confer to Pto the capability to function as an intracellular receptor and to activate a signaling cascade leading to the induction of defense responses.
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Boyce Thompson Institute for Plant Research and Department of Plant Pathology, Cornell University, Tower Road, Ithaca, New York 14853, USA.
Martin
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D001426:Bacterial Proteins / Q000378:metabolism; D018551:Solanum lycopersicum / Q000201:enzymology / Q000276:immunology; D010935:Plant Diseases / Q000382:microbiology; D010940:Plant Proteins; D010944:Plants / Q000276:immunology* / Q000382:microbiology; D017346:Protein Serine-Threonine Kinases / Q000378:metabolism; D011549:Pseudomonas / Q000737:chemistry / Q000378:metabolism; D015398:Signal Transduction
D001426:Bacterial Proteins; D010940:Plant Proteins; C081695:avrPto protein, Pseudomonas syringae; C084354:Pto protein, Lycopersicon; D017346:Protein Serine-Threonine Kinases