Korarchaeota
Hot Springs
16S rRNA phylogenetic investigation of the candidate division "Korarchaeota". (1/6)
The environmental distribution and phylogeny of "Korarchaeota," a proposed ancient archaeal division, was investigated by using the 16S rRNA gene framework. Korarchaeota-specific primers were designed based on previously published sequences and used to screen a variety of environments. Korarchaeota 16S rRNA genes were amplified exclusively from high temperature Yellowstone National Park hot springs and a 9 degrees N East Pacific Rise deep-sea hydrothermal vent. Phylogenetic analyses of these and all available sequences suggest that Korarchaeota exhibit a high level of endemicity. (+info)Orthologs of the small RPB8 subunit of the eukaryotic RNA polymerases are conserved in hyperthermophilic Crenarchaeota and "Korarchaeota". (2/6)
Although most of the key components of the transcription apparatus, and in particular, RNA polymerase (RNAP) subunits, are conserved between archaea and eukaryotes, no archaeal homologs of the small RPB8 subunit of eukaryotic RNAP have been detected. We report that orthologs of RPB8 are encoded in all sequenced genomes of hyperthermophilic Crenarchaeota and a recently sequenced "korarchaeal" genome, but not in Euryarchaeota or the mesophilic crenarchaeon Cenarchaeum symbiosum. These findings suggest that all 12 core subunits of eukaryotic RNAPs were already present in the last common ancestor of the extant archaea. (+info)A korarchaeal genome reveals insights into the evolution of the Archaea. (3/6)
(+info)Structures and activities of archaeal members of the LigD 3'-phosphoesterase DNA repair enzyme superfamily. (4/6)
(+info)Structural insights to the metal specificity of an archaeal member of the LigD 3'-phosphoesterase DNA repair enzyme family. (5/6)
(+info)Korarchaeota diversity, biogeography, and abundance in Yellowstone and Great Basin hot springs and ecological niche modeling based on machine learning. (6/6)
(+info)Korarchaeota is a proposed phylum within the domain Archaea. Members of this group have been detected in various environments, including hot springs and marine sediments, but as of now, no pure cultures exist. The limited knowledge about Korarchaeota comes from analysis of their genetic material recovered from environmental samples. Based on this data, it is believed that they might play a significant role in global carbon cycling and could potentially have a thermophilic or hyperthermophilic lifestyle. However, more research is needed to better understand the physiology, ecology, and evolutionary relationships of Korarchaeota.
Ecological and environmental processes refer to the complex interactions and relationships between living organisms and their physical surroundings. These processes can be biological, chemical, or physical in nature and they play a critical role in shaping the distribution and abundance of species, as well as the overall health and functioning of ecosystems.
Biological processes include things like predation, competition, and symbiosis, which describe how organisms interact with one another for resources and survival. Chemical processes involve the cycling of nutrients and energy through an ecosystem, such as the carbon cycle or nitrogen cycle. Physical processes include things like weather patterns, geological formations, and water cycles, which can all impact the distribution and diversity of species in an area.
Environmental processes can also refer to human activities that impact the environment, such as pollution, land use changes, and climate change. These processes can have significant consequences for both natural ecosystems and human health, making it essential to understand and manage them effectively.
'Hot Springs' are a type of geothermal feature where water is heated by the Earth's internal heat and emerges from the ground at temperatures greater than the surrounding air temperature. The water in hot springs can range in temperature from warm to extremely hot, and it is often rich in minerals such as calcium, magnesium, sulfur, and sodium.
People have been using hot springs for thousands of years for various purposes, including relaxation, recreation, and therapeutic benefits. The heat and mineral content of the water can help to soothe sore muscles, improve circulation, and promote healing in some cases. However, it is important to note that not all hot springs are safe for bathing, as some may contain harmful bacteria or pollutants. It is always recommended to check with local authorities before using a hot spring for therapeutic purposes.
Phylogeography is not a medical term, but rather a subfield of biogeography and phylogenetics that investigates the spatial distribution of genealogical lineages and the historical processes that have shaped them. It uses genetic data to infer the geographic origins, dispersal routes, and demographic history of organisms, including pathogens and vectors that can affect human health.
In medical and public health contexts, phylogeography is often used to study the spread of infectious diseases, such as HIV/AIDS, influenza, or tuberculosis, by analyzing the genetic diversity and geographic distribution of pathogen isolates. This information can help researchers understand how diseases emerge, evolve, and move across populations and landscapes, which can inform disease surveillance, control, and prevention strategies.
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Crenarchaeota2
- The evolutionary link between Asgard archaea and Korarchaeota of TACK (Thaumarchaeota, Aigarchaeota, Crenarchaeota, Korarchaeota) is yet unknown. (wikipedia.org)
- The Archaea are divided into 3 main groups called Euryarchaeota , Crenarchaeota and Korarchaeota . (earthlife.net)
Archaea5
- The Korarchaeota is a proposed phylum within the Archaea. (wikipedia.org)
- The Korarchaeota are a proposed phylum in the domain, Archaea. (wikipedia.org)
- Furthermore, given the known genetic makeup of archaea, the Korarchaeota may have preserved a set of biological traits that correspond to the earliest known archaeal form. (wikipedia.org)
- Korarchaeota are a proposed phylum within the domain, Archaea, and therefore exhibit characteristics such as having a cell wall without peptidoglycan, as well as lipid membranes that are ether-linked. (wikipedia.org)
- The use of molecular phylogenetic approaches in microbial ecology has revolutionized our view of microbial diversity at high temperatures and led to the proposal of a new kingdom within the Archaea, namely, the "Korarchaeota. (montana.edu)
Candidatus Korarchaeota1
- The name is equivalent to Candidatus Korarchaeota, and they go by the name Xenarchaeota or Xenarchaea as well. (wikipedia.org)
Phylum1
- Phylum Korarchaeota: This division consists of hyperthermophiles found in high temperature hydrothermal environment. (biologywise.com)
Yellowstone Nati1
- The first member of Korarchaeota to have its genome reconstructed was Korarchaeum crypotfilum, which was found in a hot spring in Yellowstone National Park and described in 2008. (wikipedia.org)
Archaeal1
- The environmental distribution and phylogeny of "Korarchaeota," a proposed ancient archaeal division, was investigated by using the 16S rRNA gene framework. (harvard.edu)
Found2
- Korarchaeota have been found in nature in only low abundances. (wikipedia.org)
- Korarchaeota are thermophiles, having been found living in conditions of up to 128 degrees Celsius. (wikipedia.org)
Iceland and Kamchatka1
- To check for Korarchaeota, samples from a variety of hot springs in Iceland and Kamchatka were gathered. (wikipedia.org)
Descriptor1
- Korarchaeota" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (wakehealth.edu)
Genome1
- The first member of Korarchaeota to have its genome reconstructed was Korarchaeum crypotfilum, which was found in a hot spring in Yellowstone National Park and described in 2008. (wikipedia.org)