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TZID:Europe/Vienna
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DTSTART:20190331T030000
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DTSTART:20181028T020000
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BEGIN:VEVENT
DTSTAMP:20260403T220809Z
UID:5bfeb2ffddbfa403866615@ist.ac.at
DTSTART:20181203T150000
DTEND:20181203T160000
DESCRIPTION:Speaker: Lucia Strader\nhosted by Jiri Friml\nAbstract: The phy
 tohormone auxin plays crucial roles in nearly every aspect of plant growth
  and development. The AUXIN RESPONSE FACTOR (ARF) family of transcription 
 factors regulates auxin-responsive gene expression and exhibit nuclear loc
 alization in regions of high auxin responsiveness. Here we show that activ
 ating ARF7 and ARF19 proteins accumulate in micron-sized assemblies within
  the cytoplasm of tissues with attenuated auxin responsiveness. The intrin
 sically disordered middle region and the folded PB1 interaction domain of 
 ARFs drive protein assembly formation. Mutation of a single lysine within 
 the PB1 domain abrogates cytoplasmic assemblies\, promotes ARF nuclear loc
 alization\, and results in an altered transcriptome and morphological defe
 cts. Our data suggest a model in which ARF nucleo-cytoplasmic partitioning
  regulates auxin responsiveness\, thus providing a mechanism for cellular 
 competence for auxin signaling.
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:amally@ist.ac.at
SUMMARY:Lucia Strader: Auxin Response Factor phase transitions to drive hor
 mone response and development in plants
URL:https://talks-calendar.ista.ac.at/events/1662
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