Biology:Haloarculaceae

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

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.[4] 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.[1]

Specific genera

Halocatena

Halocatena is a genus in this family. One of the species, Halocatena halophila (=Actinoarchaeum halophilum), is known for displaying "hyphae and spores" structure akin to the Actinomycetales.[5] The operon responsible for such structural differentation appears to be homologous to the Streptomycetes one and can compensate for the deletion of the bacterial version.[6]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[4] and National Center for Biotechnology Information (NCBI).[7]

16S rRNA based LTP_07_2026[8][9][10] 53 marker proteins based GTDB 11-RS232[11][12][13]
 
 
Halobacteriaceae *
 
 

Halanaeroarchaeum

 
 

Halodesulfurarchaeum

 
 
 
 

Salarchaeum

 
 
 
 

Halocalculus

 
 

Halospeciosus

 
 
 
 

Halarchaeum

 
 

Halobacterium

 
 
 
 
 
"Natronomonadaceae" *
 
 

Halomarina

 
 

Halocatena [incl. Actinarchaeum]

 
 
 
 

Haloglomus

 
 
 

Salinirubellus

 
 
 
 

Halorarius halobius

 
 
 

Halorarius litoreus

 
 

Halosegnis [incl. Salella]

 
 
 
 

Natronomonas

 
 
 
 
 
 
 
Haloarculaceae
 
 
 

Halosiccatus [incl. [Halomicrobium salinisoli]

 
 
 
 

Haloglomus litoreum

 
 

Halosimplex

 
 
 
 

Halarchaeoglobus

 
 
 

Halovenus *

 
 

Salinibaculum

 
 
 
 
 
 

Haloarcula

 
 
 
 

Halosimplex 2

 
 
 
 

Halomicrobium zhouii

 
 
 

Halomicrobium mukohataei

 
 

Haloarcula~1

 
 
 
 
 

Halorientalis

 
 
 
 

Salinibaculum *

 
 
 

Salinirussus

 
 

Halovenus~1

 
 
 
 
 

Halorhabdus

 
 
 

Halococcoides

 
 

Halapricum

 
 
 
 
 
 
 
 
 
 
 
 
 

Haladaptataceae

 
 
Halobacteriaceae *
 
 

Halanaeroarchaeum

 
 

Halodesulfurarchaeum

 
 
 
 
 
 

Halospeciosus

 
 

Salarchaeum

 
 
 
 

Halocalculus

 
 

Halarchaeum

 
 
 
 

Halobacterium

 
 
 
 
 
 
 
 

Natronoarchaeaceae

 
 

Natrialbaceae

 
 
 
 
 

Halococcaceae

 
 
Haloarculaceae
 
 
 

Halocatena * Verma et al. 2020
[incl. Actinarchaeum corrig. Tang et al. 2024]

 
 

Halomarina * Inoue et al. 2011

 
 
 
 

Natronomonas * Kamekura et al. 1997

 
 
 
 

Halorarius Sun et al. 2023

 
 

Halosegnis Duran-Viseras et al. 2022 [incl.
Salella Deshmukh & Oren 2023]

 
 
 
 

Salinirubellus * Hou et al. 2018

 
 

Haloglomus Duran-Viseras, Sanchez-Porro & Ventosa 2020

 
 
 
 
 
 
 

Halorientalis Cui et al. 2011

 
 
 
 

Halococcoides Sorokin et al. 2019

 
 
 

Halapricum Song et al. 2014

 
 

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]

 
 

Haloarcula Torreblanca et al. 1986 em. Ma et al. 2024 [incl. Halomicroarcula]

 
 
 
 
 
 
 
 
 

Haloferacaceae

 
 
 
 

Note: * polyphyletic Halobacteriaceae

See also

References

  1. ↑ 1.0 1.1 Gupta, Radhey S.; Naushad, Sohail; Fabros, Reena; Adeolu, Mobolaji (2016-02-02). "A phylogenomic reappraisal of family-level divisions within the class Halobacteria: proposal to divide the order Halobacteriales into the families Halobacteriaceae, Haloarculaceae fam. nov., and Halococcaceae fam. nov., and the order Haloferacales into the families, Haloferacaceae and Halorubraceae fam nov.". Antonie van Leeuwenhoek 109 (4): 565–587. doi:10.1007/s10482-016-0660-2. ISSN 0003-6072. PMID 26837779. 
  2. ↑ Grant, William D.; Kamekura, Masahiro; McGenity, Terry J.; Ventosa, Antonio (2015-09-14). "Halobacteria class. nov.". Bergey's Manual of Systematics of Archaea and Bacteria: 1. doi:10.1002/9781118960608.cbm00026. ISBN 978-1-118-96060-8. 
  3. ↑ Oren, Aharon (2012-02-01). "Taxonomy of the family Halobacteriaceae: a paradigm for changing concepts in prokaryote systematics". International Journal of Systematic and Evolutionary Microbiology 62 (2): 263–271. doi:10.1099/ijs.0.038653-0. ISSN 1466-5026. PMID 22155757. Bibcode: 2012IJSEM..62..263O. 
  4. ↑ 4.0 4.1 4.2 Haloarculaceae in LPSN; Freese, H. M.; Meier-Kolthoff, J. P.; Sardà Carbasse, J.; Afolayan, A. O.; Göker, M. (29 October 2025). "TYGS and LPSN in 2025: a Global Core Biodata Resource for genome-based classification and nomenclature of prokaryotes within DSMZ Digital Diversity". Nucleic Acids Research 53: D1–D12. doi:10.1093/nar/gkaf1110. 
  5. ↑ Zhu, LR; Mao, YL; Hu, Y; Sun, YP; Hou, J; Cui, HL (May 2025). "Genome-based taxonomy of the family Haloarculaceae, proposal of Natronomonadaceae fam. nov., and description of four novel halophilic archaea from two saline lakes and a marine solar saltern.". Systematic and Applied Microbiology 48 (3). doi:10.1016/j.syapm.2025.126592. PMID 40036997. Bibcode: 2025SyApM..4826592Z. 
  6. ↑ Tang, Shu-Kun; Zhi, Xiao-Yang; Zhang, Yao; Makarova, Kira S.; Liu, Bing-Bing; Zheng, Guo-Song; Zhang, Zhen-Peng; Zheng, Hua-Jun et al. (1 April 2023). "Cellular differentiation into hyphae and spores in halophilic archaea". Nature Communications 14 (1). doi:10.1038/s41467-023-37389-w. PMID 37005419. Bibcode: 2023NatCo..14.1827T. 
  7. ↑ C.L. Schoch. "Haloarculaceae". National Center for Biotechnology Information (NCBI) taxonomy database. https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?command=show&mode=tree&id=1963268&lvl=3. 
  8. ↑ "The LTPlus". https://bioinfo.uib.es/ltp/#LTPlus. 
  9. ↑ "LTP_all tree in newick format". https://biocom.uib.es/opucheck-backend/api/releases/07_26_04. 
  10. ↑ Rossello-Mora, Ramon; Viver, Tomeu; Palmer-Rodríguez, Pere; Westram, Ralf; Bustos-Caparros, Esteban; Gago, Joan Francisco; Gonzalez-Mendez, Jaime; Llabrés, Mercè et al. (22 April 2026). "A pipeline for improved 16S rRNA gene-based phylogeny and diversity analyses of Bacteria and Archaea" (in en). Nature Portfolio. doi:10.21203/rs.3.rs-9370187/v1. https://doi.org/10.21203/rs.3.rs-9370187/v1. 
  11. ↑ "GTDB release 11-RS232". https://gtdb.ecogenomic.org/about#4%7C. 
  12. ↑ "ar53_r232.sp_label". https://data.gtdb.ecogenomic.org/releases/release232/232.0/auxillary_files/ar53_r232.sp_labels.tree. 
  13. ↑ "Taxon History". https://gtdb.ecogenomic.org/taxon_history/. 

Wikidata ☰ Q62594328 entry