The Thermomicrobia is a group of thermophilic green non-sulfur bacteria. Based on species Thermomicrobium roseum and Sphaerobacter thermophilus, this bacteria class has the following description:
Thermus is a genus of thermophilic bacteria. It is one of several bacteria belonging to the Deinococcus–Thermus group. It includes the following species:
The Hydrogenophilaceae are a family of the Hydrogenophilalia, with two genera – Hydrogenophilus and Tepidiphilus. Like all "Proteobacteria", they are Gram-negative. All known species are thermophilic, growing around 50 °C and using molecular hydrogen or organic molecules as their source of electrons to support growth - some species are autotrophs.
Venenivibrio stagnispumantis strain CP.B2 is the first microorganisms isolated from the terrestrial hot spring Champagne Pool in Waiotapu, New Zealand.
Armatimonadetes is a phylum of gram-negative bacteria.
Thermoanaerobacter italicus is a species of thermophilic, anaerobic, spore-forming bacteria.
Moorella is a genus of bacteria belonging to the phylum Firmicutes.
Deferribacter thermophilus is an iron-reducing bacteria. It is a manganese- and iron-reducing bacterium. It is thermophilic and anaerobic bacterium, its type strain being designated as strain BMAT. The cells are straight to bent rods.
Thermodesulfobacterium hydrogeniphilum is a species of Sulfate-reducing bacteria. It is thermophilic, chemolithoautotrophic, non-spore-forming, marine species, with type strain SL6T.
Thermanaeromonas is a genus of bacteria within the family Thermoanaerobacteraceae. The type species of this genus is Thermanaeromonas toyohensis, a highly thermophilic anaerobe.
Chelatococcus sambhunathii is a gram-negative, aerobic catalase- and oxidase-positive motile bacteria with a single polar flagellum from the genus of Chelatococcus which was isolated from sediment of a hot sulfur spring in Orissa in India.
Marinitoga piezophila is a species of rod-shaped, thermo-piezophilic bacteria. It is, anaerobic, chemo-organotrophic, sulfur-reducing, motile, have a mean length of 1-1.5 micrometres and stains Gram-negative. The type strain is KA3T.
Thermolithobacteria is a class of rod-shaped Gram-positive bacteria within phylum Firmicutes. Species within this class are thermophilic lithotrophs isolated from sediment in Calcite Springs in Yellowstone National Park. Thermolithobacter ferrireducens strain JW/KA-2(T) metabolism consists of the oxidation of hydrogen gas and reduction of ferric oxide to magnetite. Thermolithobacter carboxydivorans strain R1(T) is hydrogenic and oxidizes carbon monoxide.
Geobacillus jurassicus is a thermophilic bacterium first isolated from a high-temperature petroleum reservoir. It is aerobic, gram-positive, rod-shaped, moderately thermophilic, chemoorganotrophic, and endospore-forming, with type species DS1T.
Laceyella sediminis is a thermophilic bacterium from the genus of Laceyella which has been isolated from sediments from a hot spring in Tengchong in China.
Planifilum fimeticola is a Gram-positive and thermophilic bacterium from the genus of Planifilum which has been isolated from hyperthermal compost in Japan.
Polycladomyces abyssicola is a Gram-positive, aerobic, heterotrophic, thermophilic and non-motile bacterium from the genus of Planifilum which has been isolated from hemipelagic sediments from deep seawater.
The genus Annwoodia was named in 2017 to circumscribe an organism previously described as a member of the genus Thiobacillus, Thiobacillus aquaesulis - the type and only species is Annwoodia aquaesulis, which was isolated from the geothermal waters of the Roman Baths in the city of Bath in the United Kingdom by Ann P. Wood and Donovan P. Kelly of the University of Warwick - the genus was subsequently named to honour Wood's contribution to microbiology. The genus falls within the family Thiobacillaceae along with Thiobacillus and Sulfuritortus, both of which comprise autotrophic organisms dependent on thiosulfate, other sulfur oxyanions and sulfide as electron donors for chemolithoheterotrophic growth. Whilst Annwoodia spp. and Sulfuritortus spp. are thermophilic, Thiobacillus spp. are mesophilic.
Calditerrivibrio is a genus of bacteria from the family of Deferribacteraceae with one known species. Calditerrivibrio nitroreducens has been isolated from a hot spring from Yumata in Japan.
Alicyclobacillus acidocaldarius is a species of Gram positive, strictly aerobic, bacterium. The bacteria are acidophilic, thermophilic, and produce endospores. The first identified strains of A. acidocaldarius were from geysers in Yellowstone National Park and fumerole soil in Hawaii Volcano National Park. The species was originally classified as Bacillus acidocaldarius in 1971, but further 16S rRNA studies found that the species belonged in the newly created genus Alicyclobacillus. The species name is derived from the Latin acidum (acid) and caldarius, referring to the acidic and high temperature environments from which it was first isolated. Thomas D. Brock was one of the researchers who first categorized the species; his discovery of Thermus aquaticus allowed for other researchers to discover Taq polymerase and polyermase chain reaction (PCR).
