Based on their relationship with temperature, bacteria can be
classified as follows :
- Psychrophiles - Optimum temperature for growth
is approximately 10oC
- Mesophiles - Optimum temperature for growth is
approximately 37oC
- Thermophiles - Optimum temperature for growth
is approximately 55oC
- Hyperthermophiles - Optimum temperature for
growth is approximately above 80oC
On this basis, organisms such
as Staphylococcus aureus, Pseudomonas
fluoresecens, and Bacillus
stearothermophilus can be classified as follows :
- Staphylococcus aureus -
Mesophile
- Pseudomonas fluoresecens -
Psychrophile
- Bacillus stearothermophilus -
Thermophile