key term - Community

Definition

A community in microbiology refers to a group of interacting microorganisms, often of different species, living together in a specific environment. These interactions can affect the growth, survival, and function of the microorganisms involved.

5 Must Know Facts For Your Next Test

1. Microbial communities can exist in various environments including soil, water, and the human body.
2. Community interactions among prokaryotes can include mutualism, commensalism, parasitism, and competition.
3. Biofilms are an example of a microbial community where microorganisms adhere to surfaces and produce extracellular polymeric substances (EPS).
4. The composition of a microbial community can influence nutrient cycling and energy flow within its ecosystem.
5. Studying microbial communities helps scientists understand microbial diversity and the roles these organisms play in their habitats.

Review Questions

Related terms

Mutualism:

A relationship between two species where both benefit.

Biofilm:

A structured community of microorganisms encapsulated within a self-produced matrix adhering to surfaces.

Microbiome:

The collection of genomes from all the microorganisms in an environment.