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Nitrosopumilaceae
The Nitrosopumilaceae are a family of the Archaea order Nitrosopumilales The Nitrosopumilales are an order of the Archaea class Nitrososphaeria. Phylogeny Phylogeny of Nitrososphaerales Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and Nati .... Taxonomy Phylogeny of Nitrosopumilaceae References Further reading Scientific journals * * Scientific books Scientific databases External links Archaea taxonomic families Archaea Candidatus taxa {{Crenarchaeota-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrosopumilales
The Nitrosopumilales are an order of the Archaea class Nitrososphaeria. Phylogeny Phylogeny of Nitrososphaerales Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI) Order Nitrososphaerales Stieglmeier et al. 2014 * Family " Methylarchaceae" Hua et al. 2019 ** ?"''Candidatus'' Methylarchaeum" Hua et al. 2019 * Family " Nitrosocaldaceae" Qin et al. 2016 ** "''Candidatus'' Nitrosocaldus" de la Torre et al. 2008 * Family Nitrososphaeraceae Qin et al. 2017 ** "''Candidatus'' Nitrosocosmicus" corrig. Lehtovirta-Morley et al. 2016 ** ''Nitrososphaera'' Stieglmeier et al. 2014 * Family Nitrosopumilaceae Stieglmeier et al. 2014 ** "''Cenarchaeum In taxonomy, ''Cenarchaeum'' is a genus of the Cenarchaeaceae.See the NCBIbr>webpage on Cenarchaeum Data extracted from the The marine archaean ''Cenarchaeum symbiosum'' lives within (it is an endosymbiont of) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrososphaerota
The Nitrososphaerota (syn. Thaumarchaeota) are a phylum of the Archaea proposed in 2008 after the genome of ''Cenarchaeum symbiosum'' was sequenced and found to differ significantly from other members of the hyperthermophilic phylum Thermoproteota (formerly Crenarchaeota). Three described species in addition to ''C. symbiosum'' are ''Nitrosopumilus maritimus'', ''Nitrososphaera viennensis'', and ''Nitrososphaera gargensis''. The phylum was proposed in 2008 based on phylogenetic data, such as the sequences of these organisms' ribosomal RNA genes, and the presence of a form of type I topoisomerase that was previously thought to be unique to the eukaryotes. This assignment was confirmed by further analysis published in 2010 that examined the genomes of the ammonia-oxidizing archaea ''Nitrosopumilus maritimus'' and ''Nitrososphaera gargensis'', concluding that these species form a distinct lineage that includes ''Cenarchaeum symbiosum''. The lipid crenarchaeol has been found only i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrososphaeria
The Nitrososphaerota (syn. Thaumarchaeota) are a phylum of the Archaea proposed in 2008 after the genome of ''Cenarchaeum symbiosum'' was sequenced and found to differ significantly from other members of the hyperthermophilic phylum Thermoproteota (formerly Crenarchaeota). Three described species in addition to ''C. symbiosum'' are ''Nitrosopumilus maritimus'', ''Nitrososphaera viennensis'', and ''Nitrososphaera gargensis''. The phylum was proposed in 2008 based on phylogenetic data, such as the sequences of these organisms' ribosomal RNA genes, and the presence of a form of type I topoisomerase that was previously thought to be unique to the eukaryotes. This assignment was confirmed by further analysis published in 2010 that examined the genomes of the ammonia-oxidizing archaea ''Nitrosopumilus maritimus'' and ''Nitrososphaera gargensis'', concluding that these species form a distinct lineage that includes ''Cenarchaeum symbiosum''. The lipid crenarchaeol has been found only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrosopumilus
''Nitrosopumilus maritimus'' is an extremely common archaeon living in seawater. It is the first member of the Group 1a Nitrososphaerota (formerly Thaumarchaeota) to be isolated in pure culture. Gene sequences suggest that the Group 1a Nitrososphaerota are ubiquitous with the oligotrophic surface ocean and can be found in most non-coastal marine waters around the planet. It is one of the smallest living organisms at 0.2 micrometers in diameter. Cells in the species ''N. maritimus'' are shaped like peanuts and can be found both as individuals and in loose aggregates. They oxidize ammonia to nitrite and members of ''N. maritimus'' can oxidize ammonia at levels as low as 10 nanomolar, near the limit to sustain its life. Archaea in the species ''N. maritimus'' live in oxygen-depleted habitats. Oxygen needed for ammonia oxidation might be produced by novel pathway which generates oxygen and dinitrogen. ''N. maritimus'' is thus among organisms which are able to produce oxygen in dark. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaea
Archaea ( ; singular archaeon ) is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria (in the Archaebacteria kingdom), but this term has fallen out of use. Archaeal cells have unique properties separating them from the other two domains, Bacteria and Eukaryota. Archaea are further divided into multiple recognized phyla. Classification is difficult because most have not been isolated in a laboratory and have been detected only by their gene sequences in environmental samples. Archaea and bacteria are generally similar in size and shape, although a few archaea have very different shapes, such as the flat, square cells of ''Haloquadratum walsbyi''. Despite this morphological similarity to bacteria, archaea possess genes and several metabolic pathways that are more closely related to those of eukaryotes, notably for the enzymes involved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus (biology)
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus '' Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenarchaeum
In taxonomy, ''Cenarchaeum'' is a genus of the Cenarchaeaceae.See the NCBIbr>webpage on Cenarchaeum Data extracted from the The marine archaean ''Cenarchaeum symbiosum'' lives within (it is an endosymbiont of) the sponge Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through t ... '' Axinella mexicana''. References Further reading Scientific journals * * * * Scientific books Scientific databases External links Archaea genera Thermoproteota {{archaea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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