Nanoarchaeota. They were the first discovered (in 2002) in a hydrothermal source next to the coast of Iceland. They live as ... 2020 Phylum "Nanoarchaeota" Huber et al. 2002 Class "Nanoarchaeia" Order "Nanoarchaeales" Huber et al. 2011 Phylum " ... Nanoarchaeota and Nanohaloarchaeota. Later Woesearchaeota and Pacearchaeota were discovered and proposed within the DPANN ... ranging from symbiotic and thermophilic forms such as Nanoarchaeota, acidophiles like Parvarchaeota and non-extremophiles like ...
2020 "Nanoarchaeota" Huber et al. 2002 "Nanoarchaeia" "Parvarchaeota" Rinke et al. 2013 "Mamarchaeota" "Pacearchaeota" Castelle ... the Nanoarchaeota. A new phylum Korarchaeota has also been proposed. It contains a small group of unusual thermophilic species ...
NCBI taxonomy page for Nanoarchaeota Tree of Life Nanoarchaeota LSPN page for Nanoarchaeota[permanent dead link] MicrobeWiki ... Therefore, it was given its own phylum, called Nanoarchaeota. However, another group (see References) compared all of the open ...
This section lists the genera of Archaea within the Phylum Nanoarchaeota. The following genus of the Nanoarchaeota has not been ...
Poté se odvětvila Nanoarchaeota (s několika blízkými skupinami, pravděpodobně jako klad DPANN).[24] Jako přirozený se nadále ... blízkých kmeni Nanoarchaeota; k této skupině byla jako sesterská skupina identifikována skupina ARMAN, po rozšíření o další ... je klasifikován v samostatném kmeni Nanoarchaeota.[15] Pro hrstku neobvyklých termofilních archeí se zase zavedl kmen ...
Qiu, X.X., Zhao, M.L., Han, D., Zhang, W.J., Dyall-Smith, M.L., Cui, H.L. (2013) "Taxonomic study of the genera Halogeometricum and Halosarcina: transfer of Halosarcina limi and Halosarcina pallida to the genus Halogeometricum as Halogeometricum limi comb. nov. and Halogeometricum pallidum comb. nov., respectively." Int J Syst Evol Microbiol. 63: 3915-3919 ...
Sejak pertengahan 1970-an, semakin banyak riset di bidang komparasi gen pada level molekular (dimulai dengan gen ribosomal RNA) sebagai faktor utama dalam klasifikasi; kemiripan genetik ditekankan terhadap penampilan luar dan perilaku. Tingakatan taxonomi, termasuk kingdom, adalah kelompok organisme dengan nenek moyang yang sama, baik monofilik (semua keturunan dari satu nenek moyang yang sama) atau parafilik (hanya beberapa keturunan dari satu nenek moyang yang sama). Berdasarkan studi RNA, Carl Woese membagi prokaryote (Kingdom Monera) menjadi dua kelompok, yaitu Eubacteria dan Archaebacteria, karena ada banyak perbedaan genetik antara dua kelompok ini. Eukaryote , seperti tumbuhan, fungi dan hewan mungkin tampak serupa, tetapi mirip dalam genetiknya di tingkatan molekular dibandingkan Eubacteria atau Archaebacteria. (Ditemukan juga bahwa eukaryote lebih dekat secara genetik dengan Archaebacteria daripada dengan Eubacteria.) Woese menciptakan sistem "tiga kingdom utama" atau "urkingdom".[8] In ...
Kategori:Semua regnum [proteoarchaeota]]] Dalam taksonomi, Korarchaeota adalah filum dari Archaea.[1] Nama ini berasal dari kata benda Yunani koros atau kore, yang berarti ''pemuda'' atau ''wanita muda,'' dan kata sifat Yunani archaios yang berarti ''kuno.''[2] Mereka juga dikenal sebagai Xenarchaeota. Analisis sekuens gen 16S rRNA mereka menunjukkan bahwa mereka adalah keturunan sangat bercabang yang tidak termasuk dalam kelompok archaea utama, Crenarchaeota dan Euryarchaeota.[3] Analisis genom satu Korarchaeota yang diperkaya dari kultur campuran mengungkapkan sejumlah fitur seperti-Crenarchaeota dan Euryarchaeota dan mendukung hipotesis dari keturunan bercabang awal.[4] ...
Række: Nanoarchaeota *Slægt: Nanoarchaeum *Nanoarchaeum equitans. Kilder/referencer[redigér , redigér wikikode]. *^ The ...
Misalnya, spesies aneh Nanoarchaeum equitans, yang ditemukan pada tahun 2003, telah diberikan filum sendiri, Nanoarchaeota.[19] ...
... the Nanoarchaeota.[19] A new phylum Korarchaeota has also been proposed. It contains a small group of unusual thermophilic ...
DPANN: acrónimo de Diapherotrites, Parvarchaeota, Aenigmaarchaeota, Nanoarchaeota, Nanohaloarchaeota. *↑ Eppley JM, Tyson GW, ... Nanoarchaeota: Hipertermófilos ou acidófilos moi pequenos. Considérase que as ARMAN, con só 300 nm de diámetro, son os ... o das Nanoarchaeota.[22] Tamén se propuxo o novo filo Korarchaeota, que contén un pequeno grupo de especies termófilas que ... Na LPSN distínguense 5 filos de arqueas: Euryarchaeota, Crenarchaeota, Korarchaeota, Nanoarchaeota e Thaumarchaeota. ...
Os korarqueotas (Korarchaeota) son un filo de arqueas.[1] O nome procede do xénero principal do grupo Korarchaeum. Tamén se lles ten chamado Xenarchaea e Xenarchaeota.. Foron descubertas a partir de mostras de secuencias xenómicas de ARNr de 16S recollidas en ambientes naturais e non se puideron cultivar. As Korarchaeota só se atoparon en ambientes hidrotermais de altas temperaturas. Parece que se diversificaron a diferentes niveis filoxenéticos de acordo coa temperatura, salinidade das augas, e xeografía.[2] Son pouco abundantes na natureza.[2][3][4] Os procesos metabólicos de Korarchaeota, incluíndo como conseguen enerxía e obteñen o carbono, son descoñecidos. 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]. Parece que son un grupo basal de arqueas, xa que teñen cracterísitcas tanto de Crenarchaeota coma de Euryarchaeota. O xenoma de Korarchaeum cryptofilum, que foi ...
Este grupo comprende as ordes Thermoproteales, Sulfolobales, Desulfurococcales e Caldisphaerales (pero propuxéronse cambios), e inclúe as especies coas temperaturas de crecemento máis altas de calquera organismo coñecido. O crecemento óptimo realízase entre 75 e 105 °C, e a temperatura máxima de crecemento para Pyrolobus chega a 113 °C. A maioría destas especies non poden crecer por debaixo de 70 °C, aínda que poden sobrevivir por períodos longos a baixas temperaturas. Algunhas especies son acidófilas cun pH óptimo entre 1,5 e 4 e morren a pH 7, e outras son neutrófilas ou lixeiramente acidófilas, crecendo optimamente a un pH de 5,5-7,5. Encóntranse en hábitats volcánicos tales como mananciais quentes continentais e en fontes hidrotermais do fondo oceánico, a pouca ou moita profundidade. Os tipos de metabolismo que presentan son diversos, desde quimioorganótrofos a quimiolitótrofos. Os quimiolitótrofos aerobios obteñen enerxía da oxidación de varios compostos ...
Estes organismos (clase Halobacteria) viven en ambientes extremadamente salinos, lagos salgados, salinas, depósitos subterráneos salinos, e tamén se atopan nas superficies de alimentos moi salgados como peixes e carnes en salgadura. Outros organismos halófilos (fungos, camaróns etc) teñen concentracións salinas citoplasmáticas normais, e para mantelas deben gastar enerxía permanentemente para levaren o sal fóra da célula e a auga dentro. Estas Archaea, poden vivir a maiores concentracións salinas e teñen a vantaxe de ter a mesma concentración salina dentro das células ca fóra. Para sobreviviren necesitan solucións cun mínimo de sal do 9%, pero a maioría das especies prefiren concentracións do 12-23% e poden sobrevivir con concentracións do 32% de sal. Teñen a característica única de usar a luz como fonte de enerxía sen ter clorofila, xa que no seu lugar teñen un pigmento chamado bacteriorrodopsina (de funcionamiento similar ao pigmento da retina dos ollos) que lle dá ...
Kmeň Nanoarchaeota Huber et al., 2002 - považované aj za súčasť Euryarchaeota. *Kmeň Korarchaeota - zaradenie sporné ...
... the Nanoarchaeota.[20] A new phylum Korarchaeota has also been proposed. It contains a small group of unusual thermophilic ...
Arheja Nanoarchaeum equitans denimo spada v samostojno deblo nanoarhej (Nanoarchaeota).[17] Termofilne arheje iz predlaganega ...
"Nanoarchaeota" Huber et al. 2002. *"Nanohaloarchaeota" Rinke et al. 2013. *"Micrarchaeota" Baker et al. 2010 ...
... most common archaeal phylum Korarchaeota Nanoarchaeota, ultra-small symbiotes, single known species Thaumarchaeota Biology ...
1 genome belonging to Korarchaeota and to the Nanoarchaeota, 3 belonging to the Thaumarchaeota and 1 genome belonging to an ...
Nanoarchaeota, Nanohaloarchaeota (DPANN) superphylum. The lineage has since been identified in data from a range of hypersaline ...
... particularly hot springs Lokiarchaeota Methanogens Nanoarchaeota Nanoarchaeum equitans - This organism was discovered in 2002 ...
PubMed references for Nanoarchaeota PubMed Central references for Nanoarchaeota Google Scholar references for Nanoarchaeota ... for Nanoarchaeota Search Species2000 page for Nanoarchaeota MicrobeWiki page for Nanoarchaeota LPSN page for Nanoarchaeota. ... Nanoarchaeota (Greek, "dwarf or tiny ancient one") are a phylum of the Archaea. This phylum currently has only one ... Phylum "Nanoarchaeota" Huber et al. 2002 Class "Nanoarchaeia" Order "Nanoarchaeales" Huber et al. 2011 Family "Nanoarchaeaceae ...
Algae comprise several different groups of organisms which produce food by photosynthesis and thus have traditionally been included in the plant kingdom. The seaweeds range from large multicellular algae to single-celled organisms and are classified into three groups, the green algae, red algae and brown algae. There is good evidence that the brown algae evolved independently from the others, from non-photosynthetic ancestors that formed endosymbiotic relationships with red algae rather than from cyanobacteria, and they are no longer classified as plants as defined here.[23][24] The Viridiplantae, the green plants - green algae and land plants - form a clade, a group consisting of all the descendants of a common ancestor. With a few exceptions, the green plants have the following features in common; primary chloroplasts derived from cyanobacteria containing chlorophylls a and b, cell walls containing cellulose, and food stores in the form of starch contained within the plastids. They undergo ...
... n sexual reproduction often involves a complex life cycle with both polyp and medusa stages. For example, in Scyphozoa (jellyfish) and Cubozoa (box jellies) a larva swims until it finds a good site, and then becomes a polyp. This grows normally but then absorbs its tentacles and splits horizontally into a series of disks that become juvenile medusae, a process called strobilation. The juveniles swim off and slowly grow to maturity, while the polyp re-grows and may continue strobilating periodically. The adults have gonads in the gastroderm, and these release ova and sperm into the water in the breeding season.[9][10] This phenomenon of succession of differently organized generations (one asexually reproducing, sessile polyp, followed by a free-swimming medusa or a sessile polyp that reproduces sexually)[25] is sometimes called "alternation of asexual and sexual phases" or "metagenesis", but should not be confused with the alternation of generations as found in plants. Shortened forms of ...
It is generally assumed that the function of flowers, from the start, was to involve mobile animals in their reproduction processes. That is, pollen can be scattered even if the flower is not brightly colored or oddly shaped in a way that attracts animals; however, by expending the energy required to create such traits, angiosperms can enlist the aid of animals and, thus, reproduce more efficiently. Island genetics provides one proposed explanation for the sudden, fully developed appearance of flowering plants. Island genetics is believed to be a common source of speciation in general, especially when it comes to radical adaptations that seem to have required inferior transitional forms. Flowering plants may have evolved in an isolated setting like an island or island chain, where the plants bearing them were able to develop a highly specialized relationship with some specific animal (a wasp, for example). Such a relationship, with a hypothetical wasp carrying pollen from one plant to another ...
Exposure of Sulfolobus solfataricus to the DNA damaging agents UV-irradiation, bleomycin or mitomycin C induces cellular aggregation.[2] Other physical stressors, such as pH or temperature shift, do not induce aggregation, suggesting that induction of aggregation is caused specifically by DNA damage. Ajon et al.[3] showed that UV-induced cellular aggregation mediates chromosomal marker exchange with high frequency. Recombination rates exceeded those of uninduced cultures by up to three orders of magnitude. Frols et al.[2][4] and Ajon et al.[3] hypothesized that the UV-inducible DNA transfer process and subsequent homologous recombinational repair represents an important mechanism to maintain chromosome integrity. This response may be a primitive form of sexual interaction, similar to the more well-studied bacterial transformation that is also associated with DNA transfer between cells leading to homologous recombinational repair of DNA damage.[5] In another related species, Sulfolobus ...
In the gastrointestinal microbiota Bacteroidetes have a very broad metabolic potential and are regarded as one of the most stable part of gastrointestinal microflora. Reduced abundance of the Bacteroidetes in some cases is associated with obesity and irritable bowel syndrome. This bacterial group appears to be enriched in patients suffering from type 1 and type 2 diabetes.[1] Bacteroides spp. in contrast to Prevotella spp. were recently found to be enriched in the metagenomes of subjects with low gene richness that were associated with adiposity, insulin resistance and dyslipidaemia as well as an inflammatory phenotype. Bacteroidetes species that belong to classes Flavobacteriales and Sphingobacteriales are typical soil bacteria and can only occasionally detected in the gastrointestinal tract, except Capnocytophaga spp. and Sphingobacterium spp. that can be detected in the human oral cavity.[1] Bacteroidetes are not limited to gut microbiota, they colonize a variety of habitats on Earth.[4] For ...
Unlike animals and plants which have readily recognizable male and female counterparts, Basidiomycota (except for the Rust (Pucciniales)) tend to have mutually indistinguishable, compatible haploids which are usually mycelia being composed of filamentous hyphae. Typically haploid Basidiomycota mycelia fuse via plasmogamy and then the compatible nuclei migrate into each other's mycelia and pair up with the resident nuclei. Karyogamy is delayed, so that the compatible nuclei remain in pairs, called a dikaryon. The hyphae are then said to be dikaryotic. Conversely, the haploid mycelia are called monokaryons. Often, the dikaryotic mycelium is more vigorous than the individual monokaryotic mycelia, and proceeds to take over the substrate in which they are growing. The dikaryons can be long-lived, lasting years, decades, or centuries. The monokaryons are neither male nor female. They have either a bipolar (unifactorial) or a tetrapolar (bifactorial) mating system. This results in the fact that ...