Quorum Sensing (densidade crítica)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
QS
About this calculator
Quorum Sensing (QS) is an important mechanism in bacterial communication, allowing them to determine the critical density of their population.
This critical density, known as the threshold, is the point at which the population of bacteria is sufficient to initiate the production of signaling molecules, such as N-acyl-L-homoserine lactone (AHL).
When the population of bacteria reaches this critical density, AHL production increases and, in turn, signals to other bacteria that it is time to initiate the expression of genes related to virulence, biofilms, and others.
Frequently asked questions
What is the threshold of Quorum Sensing?
The threshold of Quorum Sensing is the critical density of bacteria necessary to initiate the production of signaling molecules, such as AHL.
When to use Quorum Sensing?
Quorum Sensing is useful in situations where it is necessary to determine the critical density of a population of bacteria, such as in microbiology studies or in the food industry.
What is N-acyl-L-homoserine lactone (AHL)?
AHL is a signaling molecule produced by bacteria when the population reaches the critical density.
What is the importance of Quorum Sensing?
Quorum Sensing is important because it allows bacteria to communicate and determine the critical density of their population, which is fundamental for the expression of genes related to virulence and biofilms.