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.

Phylogeny

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

16S rRNA based LTP_10_2024	120 marker proteins based GTDB 10-RS226
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.)	Aquificaceae Hydrogenobaculum acidophilum Aquifex pyrophilus Hydrogenivirga calditorris Thermocrinis minervae Hydrogenobacter H. hydrogenophilus H. thermophilus Thermocrinis T. albus T. jamiesonii T. ruber
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.)
	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.)
	Aquifex pyrophilus Huber and Stetter 1992 (type sp.) Hydrogenivirga H. calditorris Nakagawa et al. 2004 (type sp.) H. okinawensis Nunoura et al. 2008
	Aquifex pyrophilus Huber and Stetter 1992 (type sp.)

	Hydrogenivirga H. calditorris Nakagawa et al. 2004 (type sp.) H. okinawensis Nunoura et al. 2008
Hydrogenivirga	H. calditorris Nakagawa et al. 2004 (type sp.) H. okinawensis Nunoura et al. 2008
	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.)
	Thermocrinis T. albus Eder and Huber 2002 T. jamiesonii Dodsworth et al. 2015 T. ruber Huber et al. 1999 (type sp.)
Thermocrinis	T. albus Eder and Huber 2002 T. jamiesonii Dodsworth et al. 2015 T. ruber Huber et al. 1999 (type sp.)
	T. albus Eder and Huber 2002

	T. jamiesonii Dodsworth et al. 2015 T. ruber Huber et al. 1999 (type sp.)
	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.)
	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.)
	Hydrogenobacter subterraneus Takai et al. 2001 Thermothrix azorensis Odintsova et al. 1996
	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.)
Hydrogenobacter	H. hydrogenophilus (Kryukov et al. 1984) Stöhr et al. 2001 H. thermophilus Kawasumi et al. 1984 (type sp.)
	H. hydrogenophilus (Kryukov et al. 1984) Stöhr et al. 2001

	H. thermophilus Kawasumi et al. 1984 (type sp.)








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

	Aquifex pyrophilus Hydrogenivirga calditorris Thermocrinis minervae Hydrogenobacter H. hydrogenophilus H. thermophilus Thermocrinis T. albus T. jamiesonii T. ruber
	Aquifex pyrophilus Hydrogenivirga calditorris
	Aquifex pyrophilus

	Hydrogenivirga calditorris


	Thermocrinis minervae Hydrogenobacter H. hydrogenophilus H. thermophilus Thermocrinis T. albus T. jamiesonii T. ruber
	Thermocrinis minervae

	Hydrogenobacter H. hydrogenophilus H. thermophilus Thermocrinis T. albus T. jamiesonii T. ruber
Hydrogenobacter	H. hydrogenophilus H. thermophilus
	H. hydrogenophilus

	H. thermophilus


Thermocrinis	T. albus T. jamiesonii T. ruber
	T. albus

	T. jamiesonii T. ruber
	T. jamiesonii

	T. ruber

Unassigned species:

"Aquifex aeolicus" Huber and Stetter 2001

Aquificaceae

Phylogeny

See also