Overview

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Quorum Sensing

What is quorum sensing
Quorum sensing is a cell-cell communication system. The detection of chemical molecules allows the bacteria to distinguish between low and high cell densities, in this way control gene expression in response to changes in cell number ¹.

Methods
During the research Matlab version R2016a has been used.
Because there was no data from the wet lab we assumed that all the parameters in the system were random. The parameters are all obtained by latin hypercube Latin hypercube is a statistical method to get random numbers from a box of n by n numbers. For example x = 4 with x is divisions and n = 2 with n is number of samples. You will obtain a box with 4 square times 2 square, give you 24 random numbers. For each parameter one number out of this box is randomly chosen. samples.

How could quorum sensing develop spatial inhomogeneities in toxin/anti-toxin systems?
When quorum sensing ensures that the toxin is only produced when the density of bacteria is high enough to produce significant amounts of toxin, this ‘standardizes’ the amount of toxin produced by the bacteria. The toxin/anti-toxin system will be coupled to the quorum sensing system. Together, quorum sensing and forming of non-producing subpopulations by the toxin/anti-toxin system, allow bacteria to produce ‘waves’ of toxin.

Results