Table 12.1
Categories, habitat and examples of extremophilic microorganisms
Name of category
Environmental parameter
Habitat
Examples
Hyperthermophile
Thermophile
Temperature
High temperature more than 80
C
Medium temperature 60–80
C
Pyrococcus
sp.
Pyrolobus fumarii
Geogemma barossii
Methanopyrus kandleri strain 116
Thermotoga neapolitana
Methanofollis tationis
Psychrophile
Low temperature less than 10
C
Psychrobacter cryopegellain
Pseudomonas
sp. ATH-43
Polaromonas vacuolata
Synechococcus lividus
Acidophile
Alkaliphile
pH
pH 3 or below
pH 9 or above
Acidithiobacillus ferrooxidans
Clostridium paradoxum
Ferroplasma
sp.
Thiobacillus
sp.
Sulfolobus
sp.
Thermoplasma
sp.
Halomonas alkaliphila
Psychrobacter
sp.
Arthrobacter
sp.
Natronobacterium
sp.
Halophile
Salinity
2–5 M NaCl
Halobacteriaceae
Haloferax
sp.
Halococcus
sp.
Haloarcula
sp.
Halorubrum
sp.
Hfx. mediterranei
Methanobrevibacter smithii
Halarsenatibacter silvermanii
Natrialba
sp.
(continued)
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