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SUMMARY:The cell wall and morphogenesis at the shoot apical meristem - Dr 
 Ray Wightman (SLCU)
DTSTART:20131122T130000Z
DTEND:20131122T132500Z
UID:TALK48382@talks.cam.ac.uk
CONTACT:Dr Yoan Coudert
DESCRIPTION:The shoot apical meristem (SAM) is a dome-shaped tissue that c
 ontains the stem cells for generating the aerial parts of the plant. We ha
 ve found the maintenance of the stem cell pool to require members of an an
 cient family of cell wall enzymes that make a polymer that forms the major
  load bearing unit of the SAM cell wall. Mutant combinations  have small m
 isshapen meristems that terminate after forming no more than 2-3 flowers. 
 The boundary region between differentiated and undifferentiated tissue is 
 poorly formed and increasing stress within the meristematic tissue results
  in failure of the cell wall composite. Together with linkage analysis of 
 the cell walls of the SAM central zone\, it appears the wall is not the ty
 pical primary wall that forms in the differentiated tissue. Our hypothesis
  is that the SAM makes a cell wall that is better able to respond to signa
 ls and positional cues prior to organogenesis and further work in this are
 a will be presented.
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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