University of Cambridge > > DAMTP BioLunch > Bioluminescence Under Stress

Bioluminescence Under Stress

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Anne Herrmann.

Bioluminescence is a common form of communication in the ocean. Here we study the bioluminescence on a single-cell level, aiming to understand the response to mechanical stimulation. In our experiments, the dinoflagellate Pyrocystis lunula was immobilized via micro-pipette aspiration. 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 results in a local elastic deformation. As a result, a series of chemical signaling events occur that eventually yields to light production in sub-cellular compartments. Besides experiments, we propose a counterpart model based on a system of ODEs that includes the viscoelasticity of the membrane.

This talk is part of the DAMTP BioLunch series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.


© 2006-2023, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity