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SUMMARY:Visualisation and Modelling of Plant Morphogenesis - Dr Jim Haselo
 ff (Department of Plant Sciences\, Cambridge)
DTSTART:20061117T090000Z
DTEND:20061117T093000Z
UID:TALK5258@talks.cam.ac.uk
CONTACT:Duncan Simpson
DESCRIPTION:web site: http://www.plantsci.cam.ac.uk/Haseloff\n\nMorphogene
 sis is a cellular process\, driven by interplay between gene expression an
 d a growing network of cell interactions. Cells within a plant meristem fo
 rm a complex non-linear system\, and clearly possess  \nself-organising pr
 operties. To date\, molecular genetic tools have provided the greatest ins
 ight into the network of interactions that underly plant morphogenesis\, a
 nd these have allowed the identification of key genes and pathways. Howeve
 r\, these analyses do not provide an explicit description of the many para
 llel molecular\, cellular and physical interactions between cells that cha
 racterise morphogenesis. In order to understand morphogenesis better\, we 
 have developed improved tools for (i) 3D visualisation of plant cells with
 in intact tissues\, (ii) reprogramming gene expression in live plants\, an
 d (iii) software modelling of physical and genetic interactions between ce
 lls during morphogenesis.\n\nAs well as using the model plant _Arabidopsis
  thaliana_\, we have been developing a new experimental system based on a 
 species of freshwater algae\, _Coleochaete orbicularis_. Its simple 2D mod
 e of growth reduces the complexity of possible interactions between cells\
 , facilitates construction of morphogenetic models\, and provides a testbe
 d for analysis of cell networks and engineering of plant morphogenesis.
LOCATION:Kaetsu Centre\, New Hall
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