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SUMMARY:The geometric basis of morphogenesis - Przemek Prusinkiewicz\, Cal
 gary University
DTSTART:20130124T130000Z
DTEND:20130124T140000Z
UID:TALK39039@talks.cam.ac.uk
CONTACT:Jill Harrison
DESCRIPTION:In the landmark 1952 paper\, “The chemical basis of morphoge
 nesis”\, Alan Turing proposed reactions between diffusing substances as 
 a general model for biological pattern formation.  In the development of h
 is model\, Turing explicitly abstracted from the growth of the tissues und
 er consideration. Contrary to this assumption\, however\, feedback between
  patterning and growth is essential for diverse morphogenetic processes in
  nature. This feedback can be formulated in geometric terms.  Biochemical 
 and biomechanical factors are not eliminated\, but treated as a lower leve
 l of abstraction\, from which the geometric characteristics of patterning 
 emerge.  In addition\, the properties of ambient space are inherently inco
 rporated as a morphogenetic factor. This geometric viewpoint unifies many 
 morphogenetic processes\, ranging from the initiation of lateral roots to 
 phyllotaxis and the development of diverse leaf shapes.
LOCATION:Department of Plant Sciences\, Large Lecture Theatre
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