| vulcanisaeta distributa gen. nov., sp. nov., and vulcanisaeta souniana sp. nov., novel hyperthermophilic, rod-shaped crenarchaeotes isolated from hot springs in japan. | seventeen strains of rod-shaped, heterotrophic, anaerobic, hyperthermophilic crenarchaeotes were isolated from several hot spring areas in eastern japan, and eight representative strains were characterized further. cells of these strains were straight to slightly curved rods, 0.4-0.6 microm in width. occasionally, cells were branched or bore spherical bodies at the poles. they grew optimally at 85-90 degrees c and at ph 4.0-4.5. they utilized yeast extract, peptone, beef extract, casamino acids, ... | 2002 | 12148613 |
| distribution of 16s rrna introns among the family thermoproteaceae and their evolutionary implications. | novel 16s rrna introns were detected in four new strains within the family thermoproteaceae. pyrobaculum oguniense te7(t) and thermoproteus sp. ic-062 housed introns of 32 and 665-668 bp after positions 1205 and 1213 ( escherichia coli numbering system), respectively. caldivirga maquilingensis ic-167(t) had two introns of 37 and 140 bp after positions 901 and 908, respectively. vulcanisaeta distributa ic-065 had a 691-bp intron after position 1391. all the introns larger than 650 bp encoded the ... | 2003 | 12768454 |
| cellular polyamines of the acidophilic, thermophilic and thermoacidophilic archaebacteria, acidilobus, ferroplasma, pyrobaculum, pyrococcus, staphylothermus, thermococcus, thermodiscus and vulcanisaeta. | cellular polyamines of newly isolated acidophilic, thermophilic and thermoacidophilic archaebacteria were investigated for the chemotaxonomic significance of polyamine distribution profiles. in addition to spermidine, spermine and agmatine, a quaternary branched penta-amine, n(4)-bis(aminopropyl)spermidine, was found in thermophilic thermococcus waiotapuensis, thermococcus aegaeus and pyrococcus glycovorans belonging to the order thermococcales. an acidophilic euryarchaeon, ferroplasma acidiphil ... | 2003 | 14673752 |
| discovery of a minimal form of rnase p in pyrobaculum. | rnase p rna is an ancient, nearly universal feature of life. as part of the ribonucleoprotein rnase p complex, the rna component catalyzes essential removal of 5' leaders in pre-trnas. in 2004, li and altman computationally identified the rnase p rna gene in all but three sequenced microbes: nanoarchaeum equitans, pyrobaculum aerophilum, and aquifex aeolicus (all hyperthermophiles) [li y, altman s (2004) rna 10:1533-1540]. a recent study concluded that n. equitans does not have or require rnase ... | 2010 | 21135215 |
| complete genome sequence of vulcanisaeta distributa type strain (ic-017). | vulcanisaeta distributa itoh et al. 2002 belongs to the family thermoproteaceae in the phylum crenarchaeota. the genus vulcanisaeta is characterized by a global distribution in hot and acidic springs. this is the first genome sequence from a member of the genus vulcanisaeta and seventh genome sequence in the family thermoproteaceae. the 2,374,137 bp long genome with its 2,544 protein-coding and 49 rna genes is a part of the genomic encyclopedia of bacteriaand archaea project. | 2010 | 21304741 |
| complete genome sequence of "vulcanisaeta moutnovskia" strain 768-28, a novel member of the hyperthermophilic crenarchaeal genus vulcanisaeta. | strain 768-28 was isolated from a hot spring in kamchatka, russia, and represents a novel member of the vulcanisaeta genus. the complete genome sequence of this thermoacidophilic anaerobic crenarchaeon reveals genes for protein and carbohydrate-active enzymes, the embden-meyerhof and entner-doudoroff pathways for glucose metabolism, the tricarboxylic acid cycle, beta-oxidation of fatty acids, and sulfate reduction. | 2011 | 21398550 |