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SUMMARY:The role of Annexin 1 in [Ca2+]cyt dynamics - Renato Colaco
DTSTART:20120426T153000Z
DTEND:20120426T160000Z
UID:TALK36394@talks.cam.ac.uk
CONTACT:Suzy Stoodley
DESCRIPTION:Plants translate stress stimuli as well as metabolic changes t
 hrough specific changes (“signatures”) in cytosolic free Ca2+ ([Ca2+]c
 yt). The channels involved remain poorly characterized.  Annexins (Ca2+-de
 pendent membrane-binding proteins) have recently been shown to act as Ca2+
 -permeable channels in plants. Annexin 1 (ATANN1) of the model plant Arabi
 dopsis thaliana was also implicated in mediating stress signalling in root
 s and could be acting as a channeI. It is expressed in root epidermal cell
 s and these are accessible to [Ca2+]cyt  measurements. Its presence in lea
 ves and its role in drought stress has also been previously shown.  We hav
 e used yellow cameleon 3.6 (YC3.6) to monitor in vivo differences in  [Ca2
 +]cyt dynamics between wild type and the atann1 knock-out mutant on guard 
 cells and will show preliminary root imaging work.
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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