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{{Short description|Family of archaea}}
{{Taxobox
{{Automatic taxobox
| domain = [[Archaea]]
| image = RT8-4.jpg
| regnum = [[Crenarchaeota]]
| phylum = [[Crenarchaeota]]
| image_caption = ''[[Sulfolobus]]''
| taxon = Sulfolobaceae
| classis = [[Thermoprotei]]
| authority = Stetter 1989
| ordo = [[Sulfolobales]]
| subdivision_ranks = Genera
| familia = '''Sulfolobaceae'''
| familia_authority = Stetter, 1989
| subdivision_ranks = [[Genus (biology)|Genera]]
| subdivision =
| subdivision =
*''[[Acidianus]]'' <small>Segerer et al. 1986 emend. Plumb et al. 2007</small>
*''[[Acidianus]]''
*"''Ca.'' [[Aramenus]]"
*''[[Metallosphaera]]'' <small>Huber et al. 1989</small>
*''[[Metallosphaera]]''
*''[[Stygiolobus]]'' <small>Segerer et al. 1991</small>
*''[[Saccharolobus]]''
*''[[Sulfolobus]]'' <small>Brock et al. 1972</small>
*''[[Stygiolobus]]''
*''[[Sulfurisphaera]]'' <small>Kurosawa et al. 1998</small>
*''[[Sulfodiicoccus]]''
*''[[Sulfurococcus]]'' <small>Golovacheva et al. 1995</small>
*''[[Sulfolobus]]''
*''[[Saccharolobus]]'' <small>Sakai and Kurosawa 2018</small>
*''[[Sulfuracidifex]]''
*''[[Sulfurisphaera]]''
*''[[Sulfurococcus]]''
}}
}}


In [[alpha taxonomy|taxonomy]], the '''Sulfolobaceae''' are a [[family (biology)|family]] of the [[Sulfolobales]].<ref>See the [[National Center for Biotechnology Information|NCBI]] [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=118883 webpage on Sulfolobaceae]. Data extracted from the {{cite web | url=ftp://ftp.ncbi.nih.gov/pub/taxonomy/ | title=NCBI taxonomy resources | publisher=[[National Center for Biotechnology Information]] | accessdate=2007-03-19}}</ref>
'''Sulfolobaceae''' are a [[family (biology)|family]] of the [[Sulfolobales]] belonging to the [[domain (biology)|domain]] [[Archaea]]. The family consists of several genera adapted to survive environmental niches with extreme temperature and low pH conditions.<ref name=NCBI>{{cite web |author = Sayers|display-authors = et al.| url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=2281&lvl=3&lin=f&keep=1&srchmode=1&unlock |title=Sulfolobaceae |accessdate=2011-06-05 |publisher=[[National Center for Biotechnology Information]] (NCBI) taxonomy database}}</ref>

==Ecology==
''Sulfolobaceae'' species are [[thermophile]]s, commonly found in [[hot spring]]s, [[hydrothermal vent]]s, [[mudpot]]s, and volcanically active regions, with ''[[Sulfolobus]]'' genus found almost anywhere with volcanic activity. ''Sulfolobaceae'' are found in temperatures ranging from 40 to 95&nbsp;°C. They are found in pH levels between 1 and 6 which makes specific species [[acidophile]]s.
Certain species, like [[metallosphaera|''Metallosphaera prunae'']], have been found living on smoldering waste material from mines by utilizing a lithoautotrophic metabolism.<ref>Fuchs, T. et al. 1995. Metallosphaera prunae, sp. nov., a Novel Metal-mobilizing, Thermoacidophilic Archaeum, Isolated from a Uranium Mine in Germany. Systematic and Applied Microbiology. 18(4), 560-566.</ref>

''Sulfolobaceae'' are involved in [[biofilm]] formation. Analysis of biofilms produced by different species has shown very few regulating [[protein]]s in common between these species, thus indicating that multiple different regulatory mechanisms for biofilm formation may exist. ''[[Sulfolobus acidocaldarius]]'' has been observed forming tower-like biofilm structures and ''Sulfolobus solfataricus'' has been observed forming carpet-like biofilms.<ref>Koerdt, A. et al. 2011. Macromolecular Fingerprinting of SulfolobusSpecies in Biofilm: A Transcriptomic and Proteomic Approach Combined with Spectroscopic Analysis. Journal of Proteome Research, 10(9), 4105-4119.</ref>

==Metabolism==
''Sulfolobaceae'' species exhibit a diverse range of metabolisms including [[Cellular respiration#Aerobic respiration|aerobic]], facultative [[Anaerobic respiration|anaerobic]], or obligate anaerobic with [[Chemotroph#Chemoheterotroph|chemoheterotrophic]], [[lithoautotroph]]ic, or [[mixotroph]]ic lifestyles. Some species exhibit [[metabolic flexibility]], being able to use several different metabolic pathways depending on the available energy sources, while others have a narrow range of metabolic options.<ref>Albers, S. V., and Siebers, B. 2014. The Family Sulfolobaceae. Pages 323-346 in Rosenberg, E et al, editors. The Prokaryotes. 4th Edition. Springer-Verlag, Berlin, Heidelberg.</ref>

Chemoheterotrophic ''Sulfolobaceae'' gain their energy by [[Redox|oxidizing]] reduced organic carbon compounds, including [[Glucose|D-glucose]], [[Galactose|D-galactose]], other common sugars, [[amino acid]]s, and other complex molecules, using oxidized forms of [[sulfur]]. Lithoautotrophic metabolism, on the other hand, involves gaining energy from the oxidation of reduced compounds such as elemental sulfur, sulfur ores, and other reduced sulfur compounds, or molecular hydrogen.

''Sulfolobaceae'' prefer low sodium chloride environments, with the exception of the ''Acidianus'' genus. [[Glycogen]] is used as long-term carbon and energy storage.

==Morphological characteristics==
''Sulfolobaceae'' species have regular, irregular, or lobed [[Coccus|cocci]] cell shapes. Their size falls between 0.5 and 2 μm in diameter. Several different surface appendages have been observed, including [[Archaellum|archaella]] in motile species, typically expressed upon starvation.<ref>Szabó, Z. et al. 2007. Flagellar Motility and Structure in the Hyperthermoacidophilic Archaeon Sulfolobus solfataricus. Journal of Bacteriology. 189(11), 4305-4309.</ref>

Unique to ''Sulfolobus acidocaldarious'' are the archaeal [[adhesive pili]] which are important for surface attachment in biofilm formation.<ref>Henche, A. et al. 2012. Structure and function of the adhesive type IV pilus of Sulfolobus acidocaldarius. Environmental Microbiology, 14(12), 3188-3202.</ref> Archaeal type IV pilin surface appendage expression occurs through a dedicated type IV prepilin signal peptidase before filaments can be assembled.
A sugar-binding surface structure termed bindosome has been found in ''Sulfolobus solfataricus''. When assembled into a dedicated bindosome assembly system they are active in the transport of sugars.<ref>Zolghadr, B. et al. 2007. Identification of a system required for the functional surface localization of sugar binding proteins with class III signal peptides in Sulfolobus solfataricus. Molecular Microbiology, 64(3), 795-806.</ref>

Proteinaceous toxins termed sulfolobicins, have been produced by certain strains of ''Sulfolobus islandicus''. These toxins may provide a competitive advantage, as they inhibit the growth of non-toxin producing strains of ''S. islandicus'' and certain other ''Sulfolobus'' species. Other species, such as ''Sulfolobus acidocaldarius'', are not inhibited. The [[gene]] encoding for sulfolobicins have been identified in other ''Sulfolobus'' species.<ref>Prangishvili, D. et al. 2000. Sulfolobicins, Specific Proteinaceous Toxins Produced by Strains of the Extremely Thermophilic Archaeal GenusSulfolobus. Journal of Bacteriology, 182(10), 2985-2988.</ref>


==Phylogeny==
==Phylogeny==
The currently accepted taxonomy is based on the [[List of Prokaryotic names with Standing in Nomenclature]] (LPSN) <ref>{{cite web | author=J.P. Euzéby | url=http://www.bacterio.cict.fr/classifphyla.html#Crenarchaeota | title=Sulfolobaceae | accessdate=2013-08-07 | publisher=[[List of Prokaryotic names with Standing in Nomenclature]] (LPSN) [http://www.bacterio.cict.fr/introduction.html] | deadurl=yes | archiveurl=https://web.archive.org/web/20130127030659/http://www.bacterio.cict.fr/classifphyla.html#Crenarchaeota | archivedate=2013-01-27 | df= }}</ref> and [[National Center for Biotechnology Information]] (NCBI)<ref>{{cite web |author = Sayers |display-authors = etal| url=https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=118883&lvl=3&lin |title=Sulfolobaceae |accessdate=2013-08-07 |publisher=[[National Center for Biotechnology Information]] (NCBI) taxonomy database [https://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html/index.cgi]}}</ref>
The currently accepted taxonomy is based on the [[List of Prokaryotic names with Standing in Nomenclature]] (LPSN) <ref>{{cite web | author=J.P. Euzéby | url=https://lpsn.dsmz.de/family/sulfolobaceae | title=Sulfolobaceae | accessdate=2021-05-15 | publisher=[[List of Prokaryotic names with Standing in Nomenclature]] (LPSN)}}</ref> and [[National Center for Biotechnology Information]] (NCBI)<ref name=NCBI />
and the phylogeny is based on 16S rRNA-based LTP release 111 by [[The All-Species Living Tree Project]] <ref>[[All-Species Living Tree Project]].{{cite web | url=http://www.arb-silva.de/fileadmin/silva_databases/living_tree/LTP_release_111/LTPs111_SSU_tree.pdf | title=16S rRNA-based LTP release 111 (full tree) | publisher=[[Silva Comprehensive Ribosomal RNA Database]] [http://www.arb-silva.de/projects/living-tree] | accessdate=2013-08-07}}</ref>


{| class="wikitable"
{{Clade
|-
! colspan=1 | 16S rRNA based [[The All-Species Living Tree Project|LTP]]_06_2022<ref>{{cite web|title=The LTP |url=https://imedea.uib-csic.es/mmg/ltp/#LTP| access-date=10 May 2023}}</ref><ref>{{cite web|title=LTP_all tree in newick format| url=https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_all_06_2022.ntree |access-date=10 May 2023}}</ref><ref>{{cite web|title=LTP_06_2022 Release Notes| url=https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_06_2022_release_notes.pdf |access-date=10 May 2023}}</ref>
! colspan=1 | 53 marker proteins based [[Genome Taxonomy Database|GTDB]] 08-RS214<ref name="about">{{cite web |title=GTDB release 08-RS214 |url=https://gtdb.ecogenomic.org/about#4%7C |website=[[Genome Taxonomy Database]]|access-date=10 May 2023}}</ref><ref name="tree">{{cite web |title=ar53_r214.sp_label |url=https://data.gtdb.ecogenomic.org/releases/release214/214.0/auxillary_files/ar53_r214.sp_labels.tree |website=[[Genome Taxonomy Database]]|access-date=10 May 2023}}</ref><ref name="taxon_history">{{cite web |title=Taxon History |url=https://gtdb.ecogenomic.org/taxon_history/ |website=[[Genome Taxonomy Database]]|access-date=10 May 2023}}</ref>
|-
| style="vertical-align:top|
{{Clade|style=font-size:90%; line-height:90%
|label1=Sulfolobaceae
|1={{clade
|1={{clade
|label1=&nbsp; ?''[[Sulfurococcus]]''
|1={{clade
|1={{clade
|1=''[[Acidianus]]''
|1=''[[Sulfurococcus mirabilis|S. mirabilis]]'' ♦ <small>Golovacheva et al. 1995</small> (type sp.)
|2={{clade
|2=''[[Sulfurococcus yellowstonensis|S. yellowstonensis]]'' ♦ <small>Karavaiko et al. 1995</small>
|1=''[[Acidianus brierleyi]]''
|2=''[[Metallosphaera]]''
}}
}}
}}
|2={{clade
|2={{clade
|label1=''[[Acidianus]]''
|1=''[[Saccharolobus]]''
|1={{clade
|2={{clade
|1={{clade
|1=?''[[Acidianus convivator|A. convivator]]'' ♠ <small>Haering et al. 2004</small>
|1=''[[Sulfodiicoccus]]''
|2=?''[[Acidianus hospitalis|A. hospitalis]]'' ♠ <small>Bettstetter et al. 2003</small>
|2=''[[Sulfuracidifex]]''
|3=?''[[Acidianus manzaensis|A. manzaensis]]'' ♠ <small>Yoshida et al. 2006</small>
|4=?''[[Acidianus pozzuoliensis|A. pozzuoliensis]]'' ♠ <small>Vestergaard et al. 2005</small>
|5=?''[[Acidianus tengchongensis|A. tengchongensis]]'' ♠ <small>He et al. 2004</small>
|6=''[[Acidianus sulfidivorans|A. sulfidivorans]]'' <small>Plumb et al. 2007</small>
|7={{clade
|1=''[[Acidianus ambivalens|A. ambivalens]]'' <small>(Zillig and Böck 1987) Fuchs et al. 1996</small>
|2=''[[Acidianus infernus|A. infernus]]'' <small>Segerer et al. 1986</small> (type sp.)
}}
}}
}}
|2={{clade
|1=''[[Acidianus brierleyi]]'' <small>(Zillig et al. 1980) Segerer et al. 1986</small>
|label2=''[[Metallosphaera]]''
|2={{clade
|2={{clade
|1={{clade
|1=?''[[Metallosphaera yellowstonensis|M. yellowstonensis]]'' ♠ <small>Kozubal et al. 2011</small>
|2=''[[Metallosphaera cuprina|M. cuprina]]'' <small>Liu et al. 2011</small>
|1=''[[Sulfolobus acidocaldarius]]''
|3={{clade
|2=''[[Stygiolobus]]''
|1=''[[Metallosphaera hakonensis|M. hakonensis]]'' <small>(Takayanagi et al. 1996) Kurosawa et al. 2003</small>
|2={{clade
|1=''[[Metallosphaera prunae|M. prunae]]'' <small>Fuchs et al. 1996</small>
|2=''[[Metallosphaera sedula|M. sedula]]'' <small>Huber et al. 1989</small> (type sp.)
}}
}}
}}
|2=''[[Sulfurisphaera]]''
}}
}}
}}
}}
}}
}}
}}
|label3=''[[Sulfolobus]]''
}}
|3={{clade
|
|1=?''[[Sulfolobus beitou|S. beitou]]'' ♠ <small>Hung 2007</small>
{{Clade|style=font-size:90%; line-height:90%
|2=?''[[Sulfolobus islandicus|S. islandicus]]'' ♠ <small>Zillig et al. 1994</small>
|label1=Sulfolobaceae
|3=?''[[Sulfolobus neozealandicus|S. neozealandicus]]'' ♠ <small>Arnold et al. 2000</small>
|1={{clade
|4=?''[[Sulfolobus tengchongensis|S. tengchongensis]]'' ♠ <small>Xiang et al. 2003</small>
|5=?''[[Sulfolobus thuringiensis|S. thuringiensis]]'' <small>Fuchs et al. 1996</small>
|1=''[[Sulfodiicoccus]]'' <small>Sakai & Kurosawa 2017</small>
|2={{clade
|6=?''[[Sulfolobus vallisabyssus|S. vallisabyssus]]'' ♠ <small>Hung 2007</small>
|7={{clade
|1={{clade
|1=''[[Sulfolobus shibatae|S. shibatae]]'' <small>Grogan et al. 1991</small>
|1=''[[Sulfurisphaera]]'' <small>Kurosawa et al. 1998</small>
|2={{clade
|2=''[[Sulfolobus solfataricus|S. solfataricus]]'' <small>Zillig et al. 1980</small>
|1=''[[Stygiolobus]]'' <small>Segerer et al. 1991</small>
|2=''[[Sulfolobus]]'' <small>Brock et al. 1972</small>
}}
}}
}}
|8={{clade
|2={{clade
|1={{clade
|1=''[[Sulfolobus metallicus|S. metallicus]]'' <small>Huber and Stetter 1992</small>
|1=''[[Sulfuracidifex]]'' <small>Itoh et al. 2020</small>
|2=''[[Saccharolobus]]'' <small>Sakai & Kurosawa 2018</small>
}}
|2={{clade
|2={{clade
|1=''[[Metallosphaera]]'' <small>Huber et al. 1989</small>
|1={{clade
|1=''[[Sulfolobus acidocaldarius|S. acidocaldarius]]'' <small>Brock et al. 1972</small> (type sp.)
|2=''[[Stygiolobus azoricus]]'' <small>Segerer et al. 1991</small>
}}
|2={{clade
|2={{clade
|1={{clade
|1=''[[Sulfolobus tokodaii|S. tokodaii]]'' <small>Suzuki et al. 2002</small>
|2=''[[Sulfolobus yangmingensis|S. yangmingensis]]'' <small>Jan et al. 1999</small>
|1=''[[Acidianus brierleyi]]''
|3=''[[Sulfurisphaera ohwakuensis]]'' <small>Kurosawa et al. 1998</small>
|2="''Ca.'' [[Aramenus]]" <small>Servín-Garcidueñas & Martínez-Romero 2014</small>
}}
|2=''[[Acidianus]]'' <small>Segerer et al. 1986</small>
}}
}}
}}
}}
}}
}}
}}
}}
}}
}}
}}
}}
|}
Notes:<br/>

♠ Strain found at the [[National Center for Biotechnology Information]] (NCBI) but not listed in the [[List of Prokaryotic names with Standing in Nomenclature]] (LPSN)<br/>
==See also==
♦ Type strain lost or not available
* [[List of Archaea genera]]


==References==
==References==
{{Reflist}}

{{Reflist|1}}


==Further reading==
==Further reading==

===Journals===
===Journals===
* {{ cite journal | author = Judicial Commission of the International Committee on Systematics of Prokaryotes | date = 2005 | title = The nomenclatural types of the orders Acholeplasmatales, Halanaerobiales, Halobacteriales, Methanobacteriales, Methanococcales, Methanomicrobiales, Planctomycetales, Prochlorales, Sulfolobales, Thermococcales, Thermoproteales and Verrucomicrobiales are the genera Acholeplasma, Halanaerobium, Halobacterium, Methanobacterium, Methanococcus, Methanomicrobium, Planctomyces, Prochloron, Sulfolobus, Thermococcus, Thermoproteus and Verrucomicrobium, respectively. Opinion 79. | journal = Int. J. Syst. Evol. Microbiol. | volume = 55 | pages = 517–518 | pmid = 15653928 | issue = Pt 1 | doi = 10.1099/ijs.0.63548-0| doi-access = free }}

* {{ cite journal | author = Judicial Commission of the International Committee on Systematics of Prokaryotes | date = 2005 | title = The nomenclatural types of the orders Acholeplasmatales, Halanaerobiales, Halobacteriales, Methanobacteriales, Methanococcales, Methanomicrobiales, Planctomycetales, Prochlorales, Sulfolobales, Thermococcales, Thermoproteales and Verrucomicrobiales are the genera Acholeplasma, Halanaerobium, Halobacterium, Methanobacterium, Methanococcus, Methanomicrobium, Planctomyces, Prochloron, Sulfolobus, Thermococcus, Thermoproteus and Verrucomicrobium, respectively. Opinion 79. | journal = Int. J. Syst. Evol. Microbiol. | volume = 55 | pages = 517–518 | pmid = 15653928 | issue = Pt 1 | doi = 10.1099/ijs.0.63548-0}}
* {{ cite journal | author = Euzeby JP | author2 = Tindall BJ | date = 2001 | title = Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an Opinion. | journal = Int. J. Syst. Evol. Microbiol. | volume = 51 | pages = 725–727 | pmid = 11321122 | issue = Pt 2 | doi=10.1099/00207713-51-2-725| doi-access = free }}
* {{ cite journal | author = Euzeby JP | author2 = Tindall BJ | date = 2001 | title = Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an Opinion. | journal = Int. J. Syst. Evol. Microbiol. | volume = 51 | pages = 725–727 | pmid = 11321122 | issue = Pt 2 | doi=10.1099/00207713-51-2-725}}


===Books===
===Books===

* {{ cite book | last = Stetter | first = KO | date = 1989 | chapter = Order III. Sulfolobales ord. nov. Family Sulfolobaceae fam. nov. | title = Bergey's Manual of Systematic Bacteriology | volume=3 | edition = 1st |editor = JT Staley |editor2 = MP Bryant |editor3 = N Pfennig |editor4 = JG Holt | pages = 169 | publisher = The Williams & Wilkins Co. | location = Baltimore}}
* {{ cite book | last = Stetter | first = KO | date = 1989 | chapter = Order III. Sulfolobales ord. nov. Family Sulfolobaceae fam. nov. | title = Bergey's Manual of Systematic Bacteriology | volume=3 | edition = 1st |editor = JT Staley |editor2 = MP Bryant |editor3 = N Pfennig |editor4 = JG Holt | pages = 169 | publisher = The Williams & Wilkins Co. | location = Baltimore}}


{{Archaea classification}}
===Databases===

{{Taxonomic references|taxon=Sulfolobaceae}}

==External links==

{{Taxonomic links|microbe=yes|NCBI_taxID=118883|taxoname=Sulfolobaceae|LSPN_letter=s|LSPN_taxoname=sulfolobaceae}}
{{Taxonbar|from=Q7636207}}
{{Taxonbar|from=Q7636207}}

[[Category:Archaea taxonomic families]]
[[Category:Archaea taxonomic families]]
[[Category:Crenarchaeota]]
[[Category:Thermoproteota]]


{{Crenarchaeota-stub}}

[[es:Sulfolobaceae]]
[[es:Sulfolobaceae]]

Latest revision as of 19:01, 1 May 2024

Sulfolobaceae
Sulfolobus
Scientific classification Edit this classification
Domain: Archaea
Kingdom: Proteoarchaeota
Superphylum: TACK group
Phylum: Thermoproteota
Class: Thermoprotei
Order: Sulfolobales
Family: Sulfolobaceae
Stetter 1989
Genera

Sulfolobaceae are a family of the Sulfolobales belonging to the domain Archaea. The family consists of several genera adapted to survive environmental niches with extreme temperature and low pH conditions.[1]

Ecology

[edit]

Sulfolobaceae species are thermophiles, commonly found in hot springs, hydrothermal vents, mudpots, and volcanically active regions, with Sulfolobus genus found almost anywhere with volcanic activity. Sulfolobaceae are found in temperatures ranging from 40 to 95 °C. They are found in pH levels between 1 and 6 which makes specific species acidophiles. Certain species, like Metallosphaera prunae, have been found living on smoldering waste material from mines by utilizing a lithoautotrophic metabolism.[2]

Sulfolobaceae are involved in biofilm formation. Analysis of biofilms produced by different species has shown very few regulating proteins in common between these species, thus indicating that multiple different regulatory mechanisms for biofilm formation may exist. Sulfolobus acidocaldarius has been observed forming tower-like biofilm structures and Sulfolobus solfataricus has been observed forming carpet-like biofilms.[3]

Metabolism

[edit]

Sulfolobaceae species exhibit a diverse range of metabolisms including aerobic, facultative anaerobic, or obligate anaerobic with chemoheterotrophic, lithoautotrophic, or mixotrophic lifestyles. Some species exhibit metabolic flexibility, being able to use several different metabolic pathways depending on the available energy sources, while others have a narrow range of metabolic options.[4]

Chemoheterotrophic Sulfolobaceae gain their energy by oxidizing reduced organic carbon compounds, including D-glucose, D-galactose, other common sugars, amino acids, and other complex molecules, using oxidized forms of sulfur. Lithoautotrophic metabolism, on the other hand, involves gaining energy from the oxidation of reduced compounds such as elemental sulfur, sulfur ores, and other reduced sulfur compounds, or molecular hydrogen.

Sulfolobaceae prefer low sodium chloride environments, with the exception of the Acidianus genus. Glycogen is used as long-term carbon and energy storage.

Morphological characteristics

[edit]

Sulfolobaceae species have regular, irregular, or lobed cocci cell shapes. Their size falls between 0.5 and 2 μm in diameter. Several different surface appendages have been observed, including archaella in motile species, typically expressed upon starvation.[5]

Unique to Sulfolobus acidocaldarious are the archaeal adhesive pili which are important for surface attachment in biofilm formation.[6] Archaeal type IV pilin surface appendage expression occurs through a dedicated type IV prepilin signal peptidase before filaments can be assembled. A sugar-binding surface structure termed bindosome has been found in Sulfolobus solfataricus. When assembled into a dedicated bindosome assembly system they are active in the transport of sugars.[7]

Proteinaceous toxins termed sulfolobicins, have been produced by certain strains of Sulfolobus islandicus. These toxins may provide a competitive advantage, as they inhibit the growth of non-toxin producing strains of S. islandicus and certain other Sulfolobus species. Other species, such as Sulfolobus acidocaldarius, are not inhibited. The gene encoding for sulfolobicins have been identified in other Sulfolobus species.[8]

Phylogeny

[edit]

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) [9] and National Center for Biotechnology Information (NCBI)[1]

16S rRNA based LTP_06_2022[10][11][12] 53 marker proteins based GTDB 08-RS214[13][14][15]
Sulfolobaceae
Sulfolobaceae

Sulfodiicoccus Sakai & Kurosawa 2017

Sulfurisphaera Kurosawa et al. 1998

Stygiolobus Segerer et al. 1991

Sulfolobus Brock et al. 1972

Sulfuracidifex Itoh et al. 2020

Saccharolobus Sakai & Kurosawa 2018

Metallosphaera Huber et al. 1989

Acidianus brierleyi

"Ca. Aramenus" Servín-Garcidueñas & Martínez-Romero 2014

Acidianus Segerer et al. 1986

See also

[edit]

References

[edit]
  1. ^ a b Sayers; et al. "Sulfolobaceae". National Center for Biotechnology Information (NCBI) taxonomy database. Retrieved 2011-06-05.
  2. ^ Fuchs, T. et al. 1995. Metallosphaera prunae, sp. nov., a Novel Metal-mobilizing, Thermoacidophilic Archaeum, Isolated from a Uranium Mine in Germany. Systematic and Applied Microbiology. 18(4), 560-566.
  3. ^ Koerdt, A. et al. 2011. Macromolecular Fingerprinting of SulfolobusSpecies in Biofilm: A Transcriptomic and Proteomic Approach Combined with Spectroscopic Analysis. Journal of Proteome Research, 10(9), 4105-4119.
  4. ^ Albers, S. V., and Siebers, B. 2014. The Family Sulfolobaceae. Pages 323-346 in Rosenberg, E et al, editors. The Prokaryotes. 4th Edition. Springer-Verlag, Berlin, Heidelberg.
  5. ^ Szabó, Z. et al. 2007. Flagellar Motility and Structure in the Hyperthermoacidophilic Archaeon Sulfolobus solfataricus. Journal of Bacteriology. 189(11), 4305-4309.
  6. ^ Henche, A. et al. 2012. Structure and function of the adhesive type IV pilus of Sulfolobus acidocaldarius. Environmental Microbiology, 14(12), 3188-3202.
  7. ^ Zolghadr, B. et al. 2007. Identification of a system required for the functional surface localization of sugar binding proteins with class III signal peptides in Sulfolobus solfataricus. Molecular Microbiology, 64(3), 795-806.
  8. ^ Prangishvili, D. et al. 2000. Sulfolobicins, Specific Proteinaceous Toxins Produced by Strains of the Extremely Thermophilic Archaeal GenusSulfolobus. Journal of Bacteriology, 182(10), 2985-2988.
  9. ^ J.P. Euzéby. "Sulfolobaceae". List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved 2021-05-15.
  10. ^ "The LTP". Retrieved 10 May 2023.
  11. ^ "LTP_all tree in newick format". Retrieved 10 May 2023.
  12. ^ "LTP_06_2022 Release Notes" (PDF). Retrieved 10 May 2023.
  13. ^ "GTDB release 08-RS214". Genome Taxonomy Database. Retrieved 10 May 2023.
  14. ^ "ar53_r214.sp_label". Genome Taxonomy Database. Retrieved 10 May 2023.
  15. ^ "Taxon History". Genome Taxonomy Database. Retrieved 10 May 2023.

Further reading

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Journals

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Books

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  • Stetter, KO (1989). "Order III. Sulfolobales ord. nov. Family Sulfolobaceae fam. nov.". In JT Staley; MP Bryant; N Pfennig; JG Holt (eds.). Bergey's Manual of Systematic Bacteriology. Vol. 3 (1st ed.). Baltimore: The Williams & Wilkins Co. p. 169.