''Haloarculaceae'' is a family of
halophilic
The halophiles, named after the Greek word for "salt-loving", are extremophiles that thrive in high salt concentrations. While most halophiles are classified into the domain Archaea, there are also bacterial halophiles and some eukaryotic species, ...
and mostly
chemoorganotrophic
Primary nutritional groups are groups of organisms, divided in relation to the nutrition mode according to the sources of energy and carbon, needed for living, growth and reproduction. The sources of energy can be light or chemical compounds; the ...
archaea within the order ''
Halobacteriales
In taxonomy, the Halobacteriales are an order of the Halobacteria, found in water saturated or nearly saturated with salt. They are also called halophiles, though this name is also used for other organisms which live in somewhat less concentrated ...
''.
The type genus of this family is ''
Haloarcula
''Haloarcula'' (common abbreviation ''Har.'') is a genus of extreme halophilic Archaea in the class of Halobactaria.
Cell Structure
''Haloarcula'' species can be distinguished from other genera in the family Halobacteriaceae by the presence of ...
.''
Its biochemical characteristics are the same as the order ''
Halobacteriales
In taxonomy, the Halobacteriales are an order of the Halobacteria, found in water saturated or nearly saturated with salt. They are also called halophiles, though this name is also used for other organisms which live in somewhat less concentrated ...
.''
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
''Haloarcula'' (common abbreviation ''Har.'') is a genus of extreme halophilic Archaea in the class of Halobactaria.
Cell Structure
''Haloarcula'' species can be distinguished from other genera in the family Halobacteriaceae by the presence of ...
.''
Current Taxonomy and Molecular Signatures
As of 2021, ''Haloarculaceae'' contains 10 validly published genera.
[ This family can be molecularly distinguished from other Halobacteria by the presence of 19 conserved signature proteins (CSPs) and seven ]conserved signature indels Conserved signature inserts and deletions (CSIs) in protein sequences provide an important category of molecular markers for understanding phylogenetic relationships. CSIs, brought about by rare genetic changes, provide useful phylogenetic markers ...
(CSIs) present in the following proteins: acetylglutamate kinase
In enzymology, an acetylglutamate kinase () is an enzyme that catalyzes the chemical reaction:
:ATP + N-acetyl-L-glutamate \rightleftharpoons ADP + N-acetyl-L-glutamyl 5-phosphate
Thus, the two substrates of this enzyme are ATP and N-acetyl-L ...
, ribonuclease R, metallo-beta-lactamase, tRNA modifying enzyme, carbamoyl phosphate synthase large subunit and hypothetical proteins.
Phylogeny
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the nomenclature, naming and Taxonomy (biology), taxonomy of prokaryotes, following the taxonomy requirements and rulings of the In ...
(LPSN)National Center for Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...
(NCBI).
See also
* List of Archaea genera
References
{{Taxonbar, from=Q62594328
Halobacteria