BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20260329T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20261025T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260822T004458Z
UID:1788163200@ist.ac.at
DTSTART:20260831T100000
DTEND:20260831T110000
DESCRIPTION:Speaker: Anastasiia Teplova\nhosted by Martin Loose\nAbstract: 
 This thesis comprises two parts addressing distinct questions in plant sig
 nalling. Part I examines the proposed nucleotide-cyclase activities of pro
 teins involved in plant hormone signalling. Part II investigates how plant
 s sense gravity and how this information is translated into a directional 
 growth response.In this thesis defense talk\, I will focus on the second p
 art and present my research on the molecular mechanisms underlying root gr
 avitropism. Gravity is perceived in specialized cells called statocytes\, 
 where starch-filled amyloplasts sediment according to the direction of gra
 vity. This leads to auxin redistribution\, which drives differential growt
 h and allows the root to bend towards gravity. LZY proteins provide an imp
 ortant molecular link between statolith sedimentation and the establishmen
 t of cell polarity. However\, how LZY polarity is connected to the downstr
 eam regulation of auxin transport remains incompletely understood.My work 
 investigates this connection\, focusing on the dynamic localization and po
 larization of proteins in root statocytes following root reorientation. In
  particular\, I examine the relationship between LZY proteins and two pote
 ntially interconnected systems: AGC kinases involved in regulating PIN aux
 in transporter activity\, and the RLD–GNOM machinery involved in membran
 e trafficking and PIN polarity. I show that components of both systems dyn
 amically redistribute during the gravitropic response and investigate thei
 r connections with LZY proteins and with each other. Together\, these resu
 lts contribute to understanding how gravity-induced cell polarity is conne
 cted to the regulation of auxin transport during root gravitropism.
LOCATION:Sunstone Bldg / Ground floor / Big Seminar Room B (I23.EG.102) and
  Zoom\, ISTA
ORGANIZER:
SUMMARY:Anastasiia Teplova: Thesis Defense: Chasing the elusive: Investigat
 ing nucleotide cyclase activity in gibberellin and strigolactone signallin
 g\; Cellular mechanisms of gravity sensing and response in roots
URL:https://talks-calendar.ista.ac.at/events/6593
END:VEVENT
END:VCALENDAR