Transient Pulse Formation In Jasmonate Signaling Pathway
Abstract
The jasmonate(JA)signalingpathwayinplantsisactivatedasdefenseresponsetoanumberofstresses
like attacksbypestsorpathogensandwoundingbyanimals.Somerecentexperimentsprovidesignificant
new knowledgeonthemoleculardetailandconnectivityofthepathway.Thepathwayhastwomajor
componentsintheformoffeedbackloops,onenegativeandtheotherpositive.Weconstructaminimal
mathematicalmodel,incorporatingthefeedbackloops,tostudythedynamicsoftheJAsignaling
pathway.ThemodelexhibitstransientgeneexpressionactivityintheformofJApulsesinagreementwith
experimentalobservations.Thedependenceofthepulseamplitude,durationandpeaktimeonthekey
parametersofthemodelisdeterminedcomputationally.Thedeterministicandstochasticaspectsofthe
pathwaydynamicsareinvestigatedusingboththefullmathematicalmodelandareducedversionofit.
We alsocomparethemechanismofpulseformationwiththeknownmechanismsofpulsegenerationin
somebacterialandviralsystems.
URI
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- Prof. Indrani Bose [22]