Difference between revisions of "Hyperthermus"

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==References==
 
==References==
[http://www.ncbi.nlm.nih.gov/pubmed/2113915 Brugger K, Chen L, Stark M, Zibat A, Redder P, et al.]."The genome of Hyperthermus butylicus: a sulfur-reducing, peptide fermenting, neutrophilic Crenarchaeote growing up to 108 degrees C." 2007. Archaea 2:127-135.<br>
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[http://www.hindawi.com/journals/arch/2007/745987.abs.html Brugger K, Chen L, Stark M, Zibat A, Redder P, et al.]."The genome of Hyperthermus butylicus: a sulfur-reducing, peptide fermenting, neutrophilic Crenarchaeote growing up to 108 degrees C." 2007. Archaea 2:127-135.<br>
 
[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=2113915 Zillig, W., Holz, I., Janekovic, D., Klenk, H., Imsel, E., Trent, J., Wunderl, S., Fojaz, V. H., Coutinho, R., and Ferreira, T."] 1990. ''Hyperthermus butylicus'', a Hyperthermophilic Sulfur-Reducing Archaebacterium That Ferments Peptides." ''Journal of Bacteriology''. 172:3959-3965.
 
[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=2113915 Zillig, W., Holz, I., Janekovic, D., Klenk, H., Imsel, E., Trent, J., Wunderl, S., Fojaz, V. H., Coutinho, R., and Ferreira, T."] 1990. ''Hyperthermus butylicus'', a Hyperthermophilic Sulfur-Reducing Archaebacterium That Ferments Peptides." ''Journal of Bacteriology''. 172:3959-3965.
  
 
[[Category:Incomplete pages]]
 
[[Category:Incomplete pages]]

Revision as of 00:13, 18 October 2010

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A Microbial Biorealm page on the genus Hyperthermus

Classification

Higher order taxa

Archaea; Crenarchaeota; Thermoprotei; Desulfurococcales; Pyrodictiaceae

Species

Hyperthermus butylicus

NCBI: Taxonomy Genome

Description and significance

Hyperthermus is a hyperthermophilic, sulfur reducing archaeon that grows between 95 and 106°C and at pH of 7.0. Also, it forms H2S from elemental sulfur and molecular hydrogen as a growth-stimulating accessory energy source but not by sulfur respiration. Further, the archaeon has a characteristic smell which composes of H2S and butyl mercaptan and the odors of 1-butanol and phenylacetic acid.

Genome structure

The genome of Hyperthermus has been completed by

Cell structure and metabolism

The cells of Hyperthermus are irregular spherical shape (around 1.5 µm in diameter) with edges between partially flattened surfaces. The ones that grow in higher temperature often contain vacuoles within their cytoplasm, sometimes immediately below the S layer. The archaeon acquires energy by fermenting peptides, including laboratory peptide mixtures (eg, Tryptone, Trypticase, Merck peptone from casein, gelatin, and a chymotryptic digest of casein) as carbon and energy sources. No growth has been observed with starch, maltose, sucrose, lactose, glucose, galactose, ribose, lactic acid, lactic acid ethylester, glyoxylate, pyruvate, oxalate, fumarate, maleate, malate, malonate, and formate.

Ecology

The strains of Hyperthermus butylicus were isolated from the sea floor of a hot, solfataric habitat on the coast of São Miguel Island in Azores, Portugal. With its ability to live at the temperature of 106°C, it is one of the most thermophilic archaea isolated so far.

References

Brugger K, Chen L, Stark M, Zibat A, Redder P, et al.."The genome of Hyperthermus butylicus: a sulfur-reducing, peptide fermenting, neutrophilic Crenarchaeote growing up to 108 degrees C." 2007. Archaea 2:127-135.
Zillig, W., Holz, I., Janekovic, D., Klenk, H., Imsel, E., Trent, J., Wunderl, S., Fojaz, V. H., Coutinho, R., and Ferreira, T." 1990. Hyperthermus butylicus, a Hyperthermophilic Sulfur-Reducing Archaebacterium That Ferments Peptides." Journal of Bacteriology. 172:3959-3965.