title: Bio-deposition of Amorphous Silica by an Extremely Thermophilic Bacterium, Thermus spp.
abstract: The bio-deposition of amorphous silica, which occurred in vitro by exposure to the extremely thermophilic bacterium Thermus spp. began from the latter part of the exponential phase of growth of the bacteria. The concentration with which the deposition occurred exceeded the solubility of amorphous silica of neutral pH at the temperature 60~85°C. Our observations suggest that Thermus spp. promotes the formation of siliceous minerals in a geothermal environment.
authors.affiliation: a Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University.
authors.forename: F
authors.initials: F
authors.lastname: Inagaki
authors.affiliation: b Department of Chemistry, Faculty of Science, Kyushu University.
authors.forename: T
authors.initials: T
authors.lastname: Yokoyama
authors.affiliation: a Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University.
authors.forename: K
authors.initials: K
authors.lastname: Doi
authors.affiliation: c Department of Mining, Faculty of Engineering, Kyushu University.
authors.forename: E
authors.initials: E
authors.lastname: Izawa
authors.affiliation: a Microbial Genetics Division, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University.
authors.forename: S
authors.initials: S
authors.lastname: Ogata
keywords: Thermus spp.; bio-deposition; geothermal water; silica