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SUMMARY:POSTPONED: Trade-offs between plant defense and growth: hormonal re
 gulation and molecular switches
LOCATION:Anatomy/Zoology Building W118
TZID:America/Denver
DTSTART:20134301T000000
UID:2026-04-23-18-01-30@natsci.colostate.edu
DTSTAMP:20260423T180130
Description:POSTPONED UNTIL FALL 2013\nPlants\, like all other organisms\, 
 need to assess and adapt to constant environmental changes throughout thei
 r life cycle. Defense responses to pathogens redirect cellular resources n
 ormally used in growth-related processes to the production of secondary me
 tabolites\, cell wall reinforcements and production of antimicrobial prote
 ins. Immunity activation is therefore energetically costly\, and requires 
 complex mechanisms of regulation to allow for timely and appropriate level
 s of defense. Plant hormones are essential integrators of development and 
 responses to the environment and as such are likely candidates for the reg
 ulation of physiological responses that influence the outcome of plant-pat
 hogen interactions. I have uncovered an interplay between the plant hormon
 es cytokinin and salicylic acid that regulates the immune responses of the
  model plant Arabidopsis thaliana and is mediated by a phosphorylation-dep
 endent mechanism involving type-A response regulators and central defense 
 signaling proteins. I will present how we are exploring this hormonal inte
 rplay to elucidate molecular mechanisms and key regulators controlling the
  growth-to-defense switch in plant immunity\, using biochemical\, genetic 
 and systems biology approaches. 4:00 pm
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