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SUMMARY:Trade-offs between plant defense and growth: hormonal regulation an
 d molecular switches
LOCATION:Anatomy/Zoology Building W118
TZID:America/Denver
DTSTART:20130101T000000
UID:2026-03-09-09-44-14@natsci.colostate.edu
DTSTAMP:20260309T094414
Description:Plants\, like all other organisms\, need to assess and adapt to
  constant environmental changes throughout their life cycle. Defense respo
 nses to pathogens redirect cellular resources normally used in growth-rela
 ted processes to the production of secondary metabolites\, cell wall reinf
 orcements and production of antimicrobial proteins. Immunity activation is
  therefore energetically costly\, and requires complex mechanisms of regul
 ation to allow for timely and appropriate levels of defense. Plant hormone
 s are essential integrators of development and responses to the environmen
 t and as such are likely candidates for the regulation of physiological re
 sponses that influence the outcome of plant-pathogen interactions. I have 
 uncovered an interplay between the plant hormones cytokinin and salicylic 
 acid that regulates the immune responses of the model plant Arabidopsis th
 aliana and is mediated by a phosphorylation-dependent mechanism involving 
 type-A response regulators and central defense signaling proteins. I will 
 present how we are exploring this hormonal interplay to elucidate molecula
 r mechanisms and key regulators controlling the growth-to-defense switch i
 n plant immunity\, using biochemical\, genetic and systems biology approac
 hes. \n 4:00 pm
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