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SUMMARY:Bioluminescence Under Stress - Maziyar Jalaal (University of Cambr
 idge)
DTSTART:20200116T130000Z
DTEND:20200116T140000Z
UID:TALK137359@talks.cam.ac.uk
CONTACT:Anne Herrmann
DESCRIPTION:Bioluminescence is a common form of communication in the ocean
 . Here we study the bioluminescence on a single-cell level\, aiming to und
 erstand the response to mechanical stimulation. In our experiments\, the d
 inoflagellate Pyrocystis lunula was immobilized via micro-pipette aspirati
 on. We impose pressure on the cell\, via a submerged impinging liquid jet 
 or another pipette. We show that the induced stress on the cell membrane r
 esults in a local elastic deformation. As a result\, a series of chemical 
 signaling events occur that eventually yields to light production in sub-c
 ellular compartments. Besides experiments\, we propose a counterpart model
  based on a system of ODEs that includes the viscoelasticity of the membra
 ne.\n
LOCATION:MR11\, Centre for Mathematical Sciences\, Wilberforce Road\, Camb
 ridge
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