Haloferacaceae

Haloferacaceae is a family of halophilic, chemoorganotrophic or heterotrophic archaea within the order Haloferacales.^[2][3][4] The type genus of this family is Haloferax.^[1] Its biochemical characteristics are the same as the order Haloferacales.

Haloferacaceae
Haloquadratum walsbyi
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Halobacteriota
Class:	Halobacteria
Order:	Haloferacales
Family:	Haloferacaceae Gupta et al. 2015
Genera[1]
Halegenticoccus Halobellus Haloferax Halogeometricum Halogranum Haloparvum Halopelagius Haloplanus Haloprofundus Haloquadratum

The name Haloferacaceae is derived from the Latin term Haloferax, referring to the type genus of the family and the suffix "-ceae", an ending used to denote a family. Together, Haloferacaceae refers to a family whose nomenclatural type is the genus Haloferax.

Taxonomy and molecular signatures

As of 2021, Haloferacaceae contains 10 validly published genera.^[1] This family can be molecularly distinguished from other Halobacteria by the presence of five conserved signature proteins (CSPs) and four conserved signature indels (CSIs) present in the following proteins: thermosome, ribonuclease BN and hypothetical proteins.^[2]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)^[1] and National Center for Biotechnology Information (NCBI).^[5]

16S rRNA based LTP_10_2024[6][7][8]

53 marker proteins based GTDB 09-RS220[9][10][11]

Natronoarchaeaceae Halorubraceae Haloparvum * Halopenitus Halorubrum Haloferacaceae Salinirubrum Halalkaliarchaeum Halolamina Halobaculum Haloplanus * Halalkalirubrum Natronocalculus Halohasta Halonotius Halogranum * Halobium Halegenticoccus * Haloprofundus * Salinigranum Haloferax * Halopelagius * Halogeometricum * Halobellus * (incl. Haloquadratum *)

Haloferacaceae Salinirubrum corrig. Cui & Qiu 2014 Haloplanus Elevi Bardavid et al. 2007 Halobium Mori et al. 2016 Halogranum Cui et al. 2010 Halegenticoccus Liu et al. 2020 Haloprofundus Zhang et al. 2017 Salinigranum Cui & Zhang 2014 Haloferax Torreblanca et al. 1986 Halopelagius Cui et al. 2010 Halogeometricum Montalvo-Rodriguez et al. 1998 Haloquadratum Burns et al. 2007 Halobellus Cui et al. 2011 Halobaculum Oren et al. 1995 Halolamina Cui et al. 2011 "Halalkalirubrum" Zuo et al. 2021 "Natronocalculus" Sorokin et al. 2023 Halohasta Mou et al. 2013 Halonotius Burns et al. 2010 Halalkaliarchaeum Sorokin et al. 2019 Halopenitus Amoozegar et al. 2012 Haloparvum Chen et al. 2016 Halorubrum McGenity & Grant 1996

Note: * Haloferacaceae

See also

• List of Archaea genera