Aquificaceae

The Aquificaceae family are bacteria that live in harsh environmental settings such as hot springs, sulfur pools, and hydrothermal vents. Although they are true bacteria as opposed to the other inhabitants of extreme environments, the Archaea, Aquificaceae genera are an early phylogenetic branch.^[1]

Aquificaceae
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Aquificota
Order:	Aquificales
Family:	Aquificaceae Reysenbach 2002
Genera
Aquifex Hydrogenivirga Hydrogenobacter Thermocrinis

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[2] and National Center for Biotechnology Information (NCBI)^[3]

16S rRNA based LTP_10_2024[4][5][6]

120 marker proteins based GTDB 09-RS220[7][8][9]

Aquificaceae Hydrogenobaculum acidophilum (Shima & Suzuki 1993) Stohr et al. 2001 Aquifex pyrophilus Huber and Stetter 1992 (type sp.) Hydrogenivirga H. calditorris Nakagawa et al. 2004 (type sp.) H. okinawensis Nunoura et al. 2008 Thermocrinis T. albus Eder and Huber 2002 T. jamiesonii Dodsworth et al. 2015 T. ruber Huber et al. 1999 (type sp.) Thermocrinis minervae Huber et al. 1999 Hydrogenobacter subterraneus Takai et al. 2001 Thermothrix azorensis Odintsova et al. 1996 Hydrogenobacter H. hydrogenophilus (Kryukov et al. 1984) Stöhr et al. 2001 H. thermophilus Kawasumi et al. 1984 (type sp.)

"Hydrogenobaculaceae" Hydrogenobaculum acidophilum Aquificaceae Aquifex pyrophilus Hydrogenivirga calditorris Thermocrinis minervae Hydrogenobacter H. hydrogenophilus H. thermophilus Thermocrinis T. albus T. jamiesonii T. ruber

Unassigned species:

• "Aquifex aeolicus" Huber and Stetter 2001

See also

• List of bacterial orders
• List of bacteria genera