caa a22 4500 397553021 CHVBK 20180308164755.0 cr unu---uuuuu 161202e199601 xx s 000 0 eng 10.1111/j.1574-6941.1996.tb00196.x doi (NATIONALLICENCE)oxford-10.1111/j.1574-6941.1996.tb00196.x The relationship between physical and chemical conditions and low microbial diversity in the Blue Lagoon geothermal lake in Iceland [Elektronische Daten] [Solveig K. Pétursdóttir, Jakob K. Kristjánsson] The Blue Lagoon in Iceland is a shallow geothermal lake with average temperatures of 37°C, pH 7.5 and about 2.5% salinity. It was formed in 1976 from the effluents of the Svartsengi geothermal power plant and is saturated with silica which constantly precipitates in the lake. It has been colonized by a few types of specialized microorganisms which seem to proliferate in this unusual ecosystem. The average bacterial colony count in the lake was 1.3 × 105 ml−1 on plate count agar made with 50% Blue Lagoon fluid but 2.6 × 106 ml−1 when determined with the MPN method. A total of 99 isolates were purified and characterized by 54 phenotypic tests and then grouped using Numerical Taxonomy. At similarity values of 80%, one major cluster was formed containing 85% of the isolates. Four representative strains from this cluster were further characterized and all shown to be Gram-negative, obligately aerobic, non-motile rods. They were oxidase positive, catalase negative and grew optimally at 45°C and in 3.5% NaCl with doubling time of about 80 min. © 1996 Federation of European Microbiological Societies. All rights reserved Microbial diversity nationallicence Blue lagoon nationallicence Saline geothermal lake nationallicence Iceland nationallicence Numerical taxonomy nationallicence Pétursdóttir Solveig K. Department of Biotechnology, Technological Institute of Iceland, Keldnaholt, 112 Reykjavik, Iceland aut Kristjánsson Jakob K. Department of Biotechnology, Technological Institute of Iceland, Keldnaholt, 112 Reykjavik, Iceland aut FEMS Microbiology Ecology Blackwell Publishing Ltd 19/1(1996-01), 39-45 19:1<39 1996 19 femsec https://doi.org/10.1111/j.1574-6941.1996.tb00196.x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1111/j.1574-6941.1996.tb00196.x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pétursdóttir Solveig K. Department of Biotechnology, Technological Institute of Iceland, Keldnaholt, 112 Reykjavik, Iceland aut NATIONALLICENCE 700 1- Kristjánsson Jakob K. Department of Biotechnology, Technological Institute of Iceland, Keldnaholt, 112 Reykjavik, Iceland aut NATIONALLICENCE 773 0- FEMS Microbiology Ecology Blackwell Publishing Ltd 19/1(1996-01), 39-45 19:1<39 1996 19 femsec Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford