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SUMMARY:Annexin function in stress signalling - Anuphon Laohavisit
DTSTART:20100305T130000Z
DTEND:20100305T133000Z
UID:TALK23589@talks.cam.ac.uk
CONTACT:15560
DESCRIPTION:Plants are constantly challenged by numerous\, sometimes simul
 taneous stresses. One important stress\, salinity\, is a growing problem f
 or various countries and can influence plant growth and productivity. Plan
 t response to salt stress has been well documented\; initial events includ
 e an increase in root cytosolic free calcium ([Ca2+]cyt)\, the production 
 of reactive oxygen species (ROS) and membrane peroxidation. These events a
 re crucial for activating downstream responses such as gene transcription 
 and long-term salt stress responses. The sensors for sodium and the channe
 l proteins mediating the [Ca2+]cyt increase are unknown. Plant annexins ar
 e multi-gene\, multifunctional proteins which are capable of Ca2+-dependen
 t membrane binding. We have shown previously that maize annexins can form 
 novel Ca2+-permeable channels (Plant Cell 21\, 479) and are now testing wh
 ether Arabidopsis annexins are involved in salt stress signalling\, acting
  as Ca2+ channels.
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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