The quorum-sensing system from Vibrio fischeri [ 41, 42] enables cells to sense population density through a transcription factor protein LuxR which acts as a transcriptional activator of gene lacI when a small organic molecule, autoinducer (AI), binds to it.
In a strict sense, population size matters.
A QS system allows for bacteria to sense their population density based on nearby autoinducer concentration and in response synchronize their gene expression.
On average, the antisense piRNA populations for these elements are 11.7% of those in the wild type, with the sense populations varying from 21 to 100% of those in wild type.
In light of the identification of GK expression within additional neuronal and non-neuronal glucose-sensing populations [3,30,31], it is at present unclear whether NPY and ORX cells types represent first-order targets of GSN action.
These are the first results demonstrating non-contact physical quorum sensing for cell population density regulation.
Cooperation and conflict in quorum-sensing bacterial populations.
Density-dependent fitness benefits in quorum-sensing bacterial populations.
Diggle, S. P., Griffin, A. S., Campbell, G. S. & West, S. A. Cooperation and conflict in quorum-sensing bacterial populations.
Specifically, it integrates land use information that was derived from remote sensing images, population grid data, and county level pesticide usage data to model residential exposure to pesticides for the entire state of Nebraska.
