Haloarculaceae

Haloarculaceae is a family of halophilic and mostly chemoorganotrophic archaea within the order Halobacteriales.^[2][3][4] The type genus of this family is Haloarcula.^[1] Its biochemical characteristics are the same as the order Halobacteriales.

Haloarculaceae
Scientific classification
Domain:	Archaea
Kingdom:	Methanobacteriati
Phylum:	Methanobacteriota
Class:	Halobacteria
Order:	Halobacteriales
Family:	Haloarculaceae Gupta et al. 2016[1]
Genera
See text

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

Current Taxonomy and Molecular Signatures

As of 2021, Haloarculaceae contains 10 validly published genera.^[1] This family can be molecularly distinguished from other Halobacteria by the presence of 19 conserved signature proteins (CSPs) and seven conserved signature indels (CSIs) present in the following proteins: acetylglutamate kinase, ribonuclease R, metallo-beta-lactamase, tRNA modifying enzyme, carbamoyl phosphate synthase large subunit 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]

Halobacteriaceae * Halanaeroarchaeum Halodesulfurarchaeum Salarchaeum Halocalculus Halarchaeum Halobacterium Halomarina Actinarchaeum corrig. Tang et al. 2024 Halocatena Haloglomus Salinirubellus Halorarius Salella Halosegnis Natronomonas Haloarculaceae Halomicrobium 2 Halovenus * Halosimplex Halomicroarcula 2 (paraphyletic) Haloarcula Halosimplex 2 Halomicrobium (paraphyletic) Halomicroarcula Halorientalis Salinibaculum * Salinirussus Halovenus 2 Halorhabdus Halococcoides Halapricum

Halococcaceae Haloarculaceae Halocatena * Verma et al. 2020 Halomarina * Inoue et al. 2011 Natronomonas * Kamekura et al. 1997 Halosegnis Duran-Viseras et al. 2022 [incl. Halorarius Sun et al. 2023; Salella Deshmukh & Oren 2023] Salinirubellus * Hou et al. 2018 Haloglomus Duran-Viseras, Sanchez-Porro & Ventosa 2020 Halorientalis Cui et al. 2011 Halapricum Song et al. 2014 Halococcoides Sorokin et al. 2019 Halorhabdus Waino et al. 2000 Salinirussus Cui et al. 2017 Salinibaculum * Han & Cui 2020 Halovenus * Makhdoumi-Kakhki et al. 2012 Halosimplex Vreeland et al. 2003 Halomicrobium Oren et al. 2002 [incl. Halosiccatus Mehrshad et al. 2016] Halomicroarcula Echigo et al. 2013 Haloarcula Torreblanca et al. 1986 Halobacteriaceae * Halanaeroarchaeum Halodesulfurarchaeum Salarchaeum Halocalculus Halarchaeum Halobacterium Haloferacaceae

Note: * polyphyletic Halobacteriaceae

See also

• List of Archaea genera