Capnophiles

Definition

Capnophiles are microorganisms that thrive in the presence of high concentrations of carbon dioxide (CO2). They require elevated CO2 levels for optimal growth and survival.

5 Must Know Facts For Your Next Test

1. Capnophiles typically require CO2 concentrations between 5% to 10% for optimal growth.
2. These microorganisms can be found in environments where CO2 is naturally higher, such as the gastrointestinal tract or respiratory system.
3. Capnophiles include various pathogenic bacteria, such as Neisseria gonorrhoeae and Haemophilus influenzae.
4. Special incubators or candle jars are often used in laboratories to cultivate capnophiles by creating a high-CO2 environment.
5. The term 'capnophile' is derived from Greek words 'kapnos' meaning smoke and 'philos' meaning loving.

Review Questions

Related terms

Obligate Aerobes:

Microorganisms that require oxygen for growth.

Facultative Anaerobes:

Microorganisms that can grow with or without oxygen but prefer oxygen-rich environments.

Microaerophiles:

Microorganisms that require low levels of oxygen for growth and are inhibited by higher concentrations.