Hyperthermus butylicus, a hyperthermophilic sulfur-reducing archaebacterium that ferments peptides.
J Bacteriol
; 172(7): 3959-65, 1990 Jul.
Article
em En
| MEDLINE
| ID: mdl-2113915
ABSTRACT
The hyperthermophilic peptide-fermenting sulfur archaebacterium Hyperthermus butylicus was isolated from the sea floor of a solfataric habitat with temperatures of up to 112 degrees C on the coast of the island of São Miguel, Azores. The organism grows at up to 108 degrees C, grows optimally between 95 and 106 degrees C at 17 g of NaCl per liter and pH 7.0, utilizes peptide mixtures as carbon and energy sources, and forms H2S from elemental sulfur and molecular hydrogen as a growth-stimulating accessory energy source but not by sulfur respiration. The same fermentation products, CO2, 1-butanol, acetic acid, phenylacetic acid, and a trace of hydroxyphenylacetic acid, are formed both with and without of S0 and H2. Its ether lipids, the absence of a mureine sacculus, the nature of the DNA-dependent RNA polymerase, and phylogenetic classification by DNA-rRNA cross-hybridization characterize H. butylicus as part of a novel genus of the major branch of archaebacteria comprising the orders Thermoproteales and Sulfolobales, representing a particularly long lineage bifurcating with the order Sulfolobales above the branching off of the genus Thermoproteus and distinct from the genera Desulfurococcus and Pyrodictium.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Peptídeos
/
Archaea
/
Fenômenos Fisiológicos Bacterianos
Idioma:
En
Revista:
J Bacteriol
Ano de publicação:
1990
Tipo de documento:
Article