(redirected from Thermophilic bacteria)
Also found in: Dictionary, Medical.


An organism that thrives at high temperatures.



an organism that lives at temperatures above 45°C, a situation that is lethal to most living things. Thermophiles include certain fish, invertebrates (worms, insects, and mollusks), microorganisms (protozoans, bacteria, actinomycetes, fungi, and algae), pteridophytes, and flowering plants. They inhabit hot springs, where the temperature reaches 70°C, thermal waters, the upper layers of soil intensely heated by the sun, and piles of organic matter (moist hay, grain, peat, or manure) heated as a result of the vital activities of thermogenic bacteria.

Thermophiles, in the broad sense of the word, include inhabitants of the tropics (except for ocean depths and high-mountain regions), saprophytes, and parasites of homeothermic (warmblooded) animals with body temperatures of 35°–40°C. Some thermophiles found at temperate and high latitudes may be considered relicts of warmer eras, when they were widely distributed.


Imshenetskii, A. A. Mikrobiologicheskie protsessy pri vysokikh temperaturakh. Moscow-Leningrad, 1944.
Mishustin, E. N., and V. T. Emtsev. Mikrobiologiia. Moscow, 1970.
Genkel’, P. A. Mikrobiologiia s osnovami virusologii. Moscow, 1974.
References in periodicals archive ?
In addition to the species of aerobic thermophilic bacteria in the system, there are other thermophilic microorganisms such as Schineria larvae and Clostridia.
Sahin et al., "Molecular diversity of thermophilic bacteria isolated from Pasinler hot spring (Erzurum, Turkey)," Turkish Journal of Biology, vol.
Population dynamics and extracellular enzymes activity of mesophilic and thermophilic bacteria isolated from semi-arid soil of Northeastern Brazil, Brazilian Journal of Microbiology, 38:1.
The introduction of New-Tokubetsu-Kyuko removes the need for "seed" compost, as the manure becomes reliably inoculated with thermophilic bacteria, thus ensuring stable compost production.
Through filter collection and use of a six-stage impactor, the concentrations of mesophilic and thermophilic bacteria, fungi, and actinomycetes, both viable and nonviable, were determined (Dillon, 1996; Palmgren, Strom, Blomquist, & Malmberg, 1986).
Draw a graph that illustrates the change in population of cryophilic, mesophilic, and thermophilic bacteria as the temperature rises from 5 to 75[degrees]C.
The thermal technologies appear unexpectedly to have brought a natural ally into the cleanup process: thermophilic bacteria such as Thermus spp., common bacteria that thrive in high-heat environments.
Preliminary tests on rocks from the mine reveal that thermophilic bacteria somehow manage to survive, even at the extreme depths of 3.5 km.
Farmer's lung, a prototypical form of HP, has been associated with exposure to thermophilic bacteria and several fungal species.
Biomine '93 carries twenty papers, the topics including the 'Practical role of thermophilic bacteria in bioleaching and biooxidation' by a leading expert on the subject, Dr Corale L.
launched the world's first commercial mineral bio-oxidation project using moderately thermophilic bacteria. Moderate thermophiles break down sulphide minerals at a temperature between 45 and 55 [degrees] C.