Editing Bacterial growth (section)

===Temperature===
Low temperatures tend to reduce growth rates which has led to refrigeration being instrumental in food preservation. Depending on temperature, bacteria can be classified as:

* '''Psychrophiles'''
[[Psychrophile]]s are extremophilic cold-loving bacteria or archaea with an optimal temperature for growth at about 15&nbsp;°C or lower (maximal temperature for growth at 20&nbsp;°C, minimal temperature for growth at 0&nbsp;°C or lower). Psychrophiles are typically found in Earth's extremely cold ecosystems, such as polar ice-cap regions, permafrost, polar surface, and deep oceans.<ref>{{cite journal | vauthors = Moyer CL, Morita RY | title = Psychrophiles and Psychrotrophs | journal = eLS |date=16 April 2007 |doi=10.1002/9780470015902.a0000402.pub2| isbn = 9780470016176 }}</ref>
* '''Mesophiles'''
[[Mesophile]]s are bacteria that thrive at moderate temperatures, growing best between 20° and 45&nbsp;°C. These temperatures align with the natural body temperatures of humans, which is why many human pathogens are mesophiles.<ref>{{Cite web|url=https://www.biology-online.org/dictionary/Mesophile|title=Mesophile | work = Biology-Online Dictionary |language=en|access-date=2018-02-06}}</ref>
* '''Thermophiles'''
Survive under temperatures of 45–80&nbsp;°C.<ref>{{cite journal | vauthors = Bergey DH | title = Thermophilic Bacteria | journal = Journal of Bacteriology | volume = 4 | issue = 4 | pages = 301–306 | date = July 1919 | pmid = 16558843 | pmc = 378811 | doi = 10.1128/jb.4.4.301-306.1919 }}</ref>