Abstract
A bacterial strain belonging to the speciesThermus was isolated from the water of a Carlsbad hot spring at 70–73°C. The microorganism can grow aerobically and forms yellow and orange colonies on a special medium, due to a carotenoid pigment. The growth optimum is 70–75°C. The minimum and maximum temperatures for growth are 40 and 80°C, respectively. The microorganism is a Gram-negative, rod-like, immobile bacterium, its characteristic feature being the ability to form long filaments (up to 200 µm long). The content of guanine and cytosine in DNA is 65.1 %. This rare endemic microorganism was isolated and described in detail in Czechoslovakia for the first time. It was included in theCzechoslovak Collection of Microorganisms of the Masaryk University in Brno and is available under the catalog number of CCM 4167.
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References
Brock T.D.:Thermophilic Microorganisms and Life at High Temperatures. Springer-Verlag, New York 1978.
Brock T.D., Freeze H.:Thermus aquaticus gen. n. and sp. n., a nonsporulating extreme thermophile.J.Bact.98, 289–297 (1969).
Castenholz R.W.: Thermophilic blue-green algae and the thermal environment.Bact.Rev.33, 476–504 (1969).
Cometta S., Sonnleitner B., Sidler W., Fiechter A.: Population distribution of aerobic extremely thermophilic microorganisms in an Icelandic natural hot spring.Eur.J.Appl.Microbiol. Biotechnol.16, 151–156 (1982).
Degryse E., Glandsdorff N., Pierard A.: A comparative analysis of extreme thermophilic bacteria belonging to the genusThermus.Arch.Microbiol.117, 189–196 (1978).
Hensel R., Demharter W., Kandler O., Kroppenstedt R.M., Stackenbrandt E.: Chemotaxonomic and molecular-genetic studies of the genusThermus: evidence for a phylogenetic relationship ofThermus aquaticus andThermus ruber to the genusDeinococcus.Int.J.Syst.Bact.36, 444–453 (1986).
Hudson J.A., Morgan H.W., Daniel R.M.: Numerical classification of someThermus isolates from Icelandic hot springs.Syst.Appl.Microbiol.9, 218–223 (1987).
Hudson J.A., Morgan H.W., Daniel R.M.:Thermus filiformis sp. nov., a filamentous caldoactive bacterium.Int.J.Syst.Bact.37, 431–436 (1987).
Hudson J.A., Morgan H.W., Daniel R.M.: A numerical classification of someThermus isolates.J.Gen.Microbiol.132, 531–540 (1986).
Chiong M., Barra R., González E., Vásouez C.: Resistance ofThermus spp. to potassium tellurite.Appl.Environm.Microbiol.54, 610–612 (1986).
Loginova L.G., Egorova L.A., Golovacheva R.S., Seregina L.M.:Thermus ruber sp. nov., nom. rev.Int.J.Syst.Bact.34, 498–499 (1984).
Munster M.J., Munster A.P., Woodrow J.R., Sharp R.J.: Isolation and preliminary taxonomic studies ofThermus strains isolated from Yellowstone national park, USA.J.Gen.Microbiol.132, 1677–1683 (1986).
Pask-Hughes R.A., Williams R.A.D.: Yellow-pigmented strains ofThermus spp. from Icelandic hot springs.J.Gen.Microbiol.102, 375–383 (1977).
Pěčková M.: Occurrence of microorganisms in Carlsbad Spring I, III and IV. (In Czech)Annual Report Research Institute of Balneology, Mariánské Lázně (Czechoslovakia) 1989.
Pěčková M.: Occurrence of a hyperthermophile belonging to the genusThermus in Carlsbad spring (In Czech)Biológia (Bratislava)45, 219–228 (1990).
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Translated by Č. Novotný
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Pěčková, M. Properties of a hyperthermophilic bacterium (Thermus sp.) isolated from a Carlsbad spring. Folia Microbiol 36, 515–521 (1991). https://doi.org/10.1007/BF02884029
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DOI: https://doi.org/10.1007/BF02884029