• A clade of crenarchaeota (archaea) has frequently been detected among many other novel lineages of uncultivated bacteria. (sdu.dk)
  • The hexagonal lattice type is dominant within the phylum Euryarchaeota, while in the Crenarchaeota this feature is mainly associated with specific orders. (frontiersin.org)
  • From studies employing a combination of cultivation and molecular phylogenetic techniques (PCR-single-strand conformation polymorphism, sequence analysis of 16S rRNA genes, fluorescence in situ hybridization, and real-time PCR), we present evidence here that one of the two dominant phylotypes of Crenarchaeota that colonizes the roots of tomato plants grown in soil from a Wisconsin field is selectively enriched in mixed cultures amended with root extract. (elsevier.com)
  • Phylogenetic tree derived from 16S rRNA sequences data for the Crenarchaeota and some representatives of the Euryarchaeota. (els.net)
  • One possible piece of evidence supporting a close relationship between Crenarchaea and eukaryotes is the presence of a homolog of the RNA polymerase subunit Rbp-8 in Crenarchea but not in Euryarchaea Euryarchaeota See the NCBI webpage on Crenarchaeota C.Michael Hogan. (wikipedia.org)
  • The hexagonal lattice type is dominant within the phylum Euryarchaeota, while in the Crenarchaeota this feature is mainly associated with specific orders. (frontiersin.org)
  • [14] Většina z těch nejznámějších archeí se dnes řadí do dvou kmenů, Euryarchaeota a Crenarchaeota . (wikipedia.org)
  • Noget forskning tyder på, at Euryarchaeota er tættere på eukaryote end på Crenarchaeota. (wikipedia.org)
  • Destes grupos, os Crenarchaeota e os Euryarchaeota son os máis intensamente estudados. (wikipedia.org)
  • A análise das súas secuencias de ARNr de 16 S suxire que estas especies non forman parte dos dous principais grupos de arqueas, Crenarchaeota e Euryarchaeota [ 5 ] . (wikipedia.org)
  • Parece que son un grupo basal de arqueas, xa que teñen cracterísitcas tanto de Crenarchaeota coma de Euryarchaeota. (wikipedia.org)
  • Sequences of 198 clones from nine samples covering three seasons and all depths grouped with marine group I Crenarchaeota (111 clones), marine group II Euryarchaeota (86 clones), and group IV Euryarchaeota (1 clone). (asm.org)
  • [16] Večina dobro raziskanih arhej, ki se jih lahko kultivira na gojiščih, spada v debli pravih arhej (Euryarchaeota) in krenarhej (Crenarchaeota). (wikipedia.org)
  • Detection of Euryarchaeota and Crenarchaeota in an Oxic Basalt Aquifer. (pointloma.edu)
  • In the archaeal communities, microorganisms affiliated with three phyla (Euryarchaeota , Crenarchaeota , and Thaumarchaeota ) were identified. (mcgill.ca)
  • The researchers found that Euryarchaeota, Crenarchaeota, Acetothermia, Firmicutes and Planctomycetes were the most abundant bacterial and archael groups. (eurekalert.org)
  • The first phylum named was Nanoarchaeota, in 2002, for a tiny deep-sea vent organism that didn't fit into Euryarchaeota or Crenarchaeota.3 In 2013, researchers proposed linking it with the taxa Diapherotrites, Parvarchaeota, Aenigmarchaeota, and Nanohaloarchaeota.4 New phyla have been added since. (the-scientist.com)
  • Mesophilic Crenarchaeota: proposal for a third archaeal phylum, the Thaumarchaeota. (wikimedia.org)
  • Scientists proposed the TACK name in 2011 to encompass the phyla Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota;2 more phyla have been added since. (the-scientist.com)
  • And a number of phyla related to Crenarchaeota joined it in a so-called superphylum known as TACK for its founding members (Thaumarchaeota, Aigarchaeota, Crenarchaeota, and Korarchaeota). (the-scientist.com)
  • En 1970, Thomas D. Brock, da Universidade de Wisconsin, descubriu a Thermoplasma , unha arquea termoacidófila e en 1972 a Sulfolobus , unha hipertermófila . (wikipedia.org)
  • Sulfolobus species are hyperthermophilic Crenarchaeota that live in extremely hot and acidic environments. (rug.nl)
  • The structure and evolution of the ribosomal proteins encoded in the spc operon of the archaeon (Crenarchaeota) Sulfolobus acidocaldarius. (ebi.ac.uk)
  • The Crenarchaeota, one of the meanwhile four kingdoms of the archaeal domain, consist primarily of hyperthermophiles, thriving at temperatures of up to 113°C. They have been isolated from submarine hydrothermal systems or from continental solfataric fields. (els.net)
  • The kingdom Crenarchaeota is one of the two kingdoms that comprise the archaeal domain. (asm.org)
  • Surprisingly, recent rRNA sequence-based analyses indicate that Crenarchaeota also may be widely distributed in low-temperature environments such as ocean waters and terrestrial sediments and soils (Bintrim 1997, DeLong 1994, Furhman 1992, and Hersberger 1996). (tolweb.org)
  • Within the last several years, molecular techniques have uncovered numerous 16S rRNA gene (rDNA) sequences which represent a unique and globally distributed lineage of the kingdom Crenarchaeota that is phylogenetically distinct from currently characterized crenarchaeotal species. (asm.org)
  • The nonthermophilic Crenarchaeota accounted for as much as 1.42% ± 0.42% of the 16S rRNA in the soils analyzed. (asm.org)
  • Since growth temperature and habitat characteristics vary so widely between nonthermophilic and the hyperthermophilic Crenarchaeota , these groups are likely to differ greatly with respect to specific physiology and metabolism. (asm.org)
  • We determined the diversity and abundance of the nonthermophilic members of the Crenarchaeota in soil samples taken from cultivated and uncultivated fields located at the Kellogg Biological Station's Long-Term Ecological Research site (Hickory Corners, Mich.). Clones were generated from 16S rDNA that was amplified by using broad-specificity archaeal PCR primers. (asm.org)
  • Phylogenetic analyses included nonthermophilic crenarchaeotal sequences found in public databases and revealed that the nonthermophilic Crenarchaeota group is composed of at least four distinct phylogenetic clusters. (asm.org)
  • It is presumed that these members of the Crenarchaeota are nonthermophilic based on the environments in which they have been found (temperatures, −1.5 to 32°C), their phylogenetic distance from the thermophilic members of the Crenarchaeota , and the low G+C contents of their 16S rDNA (51 to 58%) compared to the G+C contents of the thermophilic organisms (60 to 69%) ( 10 , 16 , 28 ). (asm.org)
  • In addition, the abundance of nonthermophilic Crenarchaeota in the marine water column and in the oxic region of freshwater sediments suggests that certain members of the nonthermophilic Crenarchaeota are tolerant to oxygen ( 11 , 19 ). (asm.org)
  • Members of the nonthermophilic Crenarchaeota have recently been identified in soils, but the abundance and significance of these organisms in soil microbial communities have not been assessed ( 5 , 7 , 17 , 37 ). (asm.org)
  • Nonthermophilic members of the kingdom Crenarchaeota are one of the more abundant, widespread, and frequently recovered prokaryotic groups revealed by molecular phylogenetic approaches. (asm.org)
  • The members of the Crenarchaeota that have been isolated to date are extreme thermophiles that have optimal growth temperatures of more than 80°C. With certain exceptions, these extreme thermophiles are obligate anaerobes with sulfur-dependent metabolisms. (asm.org)
  • The kingdom Crenarchaeota has the distinction of including microbial species with the highest known growth temperatures of any organisms. (tolweb.org)
  • Recent analyses of genetic sequences obtained directly from environomental samples, however, indicate the existence of low temperature Crenarchaeota, which have not yet been cultivated. (tolweb.org)
  • This collection of more than 100 16S rDNA sequences represents a diverse and globally distributed group of organisms that belong to the kingdom Crenarchaeota but are phylogenetically distinct from the thermophilic Crenarchaeota . (asm.org)
  • Group I.1a Crenarchaeota dominated at two sites, while group I.3b Crenarchaeota sequences were most abundant at a third site. (conncoll.edu)
  • And by comparing the C. symbiosum genome sequence with sequences extracted from environmental samples collected from diverse ocean habitats, they show that planktonic Crenarchaeota share many of the same genetic components. (rxpgnews.com)
  • How did the genes identified here compare with planktonic Crenarchaeota gene sequences? (rxpgnews.com)
  • Obsidian Pool, in the Mud Volcano area of Yellowstone National Park, is a neutral-pH hot spring which contains an unusually wide diversity of Crenarchaeota. (tolweb.org)
  • Archaeal Diversity and the Prevalence of Crenarchaeota in Salt Marsh " by Katelyn A. Nelson, Nicole S. Moin et al. (conncoll.edu)
  • Soil pH regulates the abundance and diversity of Group 1.1c Crenarchaeota. (nih.gov)
  • Diversity of archaeosine synthesis in crenarchaeota. (semanticscholar.org)
  • Marine Crenarchaeota represent an abundant component of oceanic microbiota with potential to significantly influence biogeochemical cycling in marine ecosystems. (uib.no)
  • Uncultivated organisms in the subdivision Crenarchaeota are postulated to be the most abundant ammonia -oxidizing organisms in soils and to account for a large proportion (roughly 20 percent) of the microorganisms present in the picoplankton in the world's oceans. (britannica.com)
  • High abundance of Crenarchaeota in a temperate acidic forest soil. (nih.gov)
  • Two types of environments were Crenarchaeota thrive: Left. (tolweb.org)
  • The Kingdom Crenarchaeota has been defined phylogenetically, based on comparative molecular sequence analyses, and its members are therefore primarily defined by sequence similarity. (tolweb.org)
  • However, recent metagenomic studies have revealed the existence of unique ammonia monooxygenase α-subunit (amoA) genes derived from uncultivated, nonextremophilic Crenarchaeota. (pnas.org)
  • Several lines of evidence suggest that planktonic Crenarchaeota, significant components of the marine ecosystem, assimilate carbon in this way and that they might use ammonia (NH3) as an energy source, since they inhabit ammonia-rich Antarctic waters and are associated with high nitrite concentrations. (rxpgnews.com)
  • To search for genetic clues to carbon and energy metabolism in Crenarchaeota, the researchers extracted C. symbiosum DNA from its host sponge and constructed a DNA library for sequencing the symbiont s genome. (rxpgnews.com)
  • Derived from the gene content, T. tenax is a representative member of the Crenarchaeota. (wur.nl)
  • The metabolism of most Crenarchaeota other than the cultivated thermophilic extremophiles is not known yet (11, 25, 51). (psu.edu)
  • One particular feature is the great metabolic versatility, which is not accompanied by a distinct increase of genome size or information density as compared to other Crenarchaeota. (wur.nl)
  • The crenarchaeota are able to endure both extreme temperatures and extreme acidity. (reference.com)