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Lentisphaerae
Lentisphaerota is a phylum of bacteria closely related to Chlamydiota and Verrucomicrobiota. It includes two monotypic orders Lentisphaerales and Victivallales. Phylum members can be aerobic or anaerobic and fall under two distinct phenotypes. These phenotypes live within bodies of sea water and were particularly hard to isolate in a pure culture. One phenotype, ''L. marina'', consists of terrestrial gut microbiota from mammals and birds. It was found in the Sea of Japan. The other phenotype (''L. araneosa'') includes marine microorganisms: sequences from fish and coral microbiomes and marine sediment. Phylogeny The phylogeny based on the work of the All-Species Living Tree Project. Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LSPN) and the National Center for Biotechnology Information (NCBI). * Phylum Lentisphaerota Cho et al. 2021 ** Class Oligosphaeria Qiu et al. 2013 *** Order Oligosphaerales Qiu e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lentisphaera Araneosa
''Lentisphera araneosa'' is a marine bacteria strain in the bacterial phylum Lentisphaerota. They are able to produce viscous transparent exopolymers and grow attached to each other by the polymer in a three-dimensional configuration. They are part of the natural surface bacterial population in the Atlantic and Pacific oceans. They are less than 1% of the total bacterial community. This species is gram negative, non-motile, non-pigmented, aerobic, chemoheterotrophic, and facultatively oligotrophic sphere-shaped. Its genome In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding g ... has been sequenced. References Further reading * External linksType strain of ''Lentisphaera araneosa'' at Bac''Dive'' - the Bacterial Diversity Metadatabase Lentisphaerota Marine biology Bac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PVC Group
The PVC superphylum is a superphylum of bacteria named after its three important members, Planctomycetota, Verrucomicrobiota, and Chlamydiota. Cavalier-Smith postulated that the PVC bacteria probably lost or reduced their peptidoglycan cell wall twice. It has been hypothesised that a member of the PVC clade might have been the host cell in the endosymbiotic event that gave rise to the first proto-eukaryotic cell. Cavalier-Smith calls the same group Planctobacteria and considers it a phylum. However, this is not followed by the larger scientific community. In the Cavalier-Smith bacterial megaclassification, it is within the bacterial Gracilicutes infra-kingdom and comprises the phyla Chlamydiota, Lentisphaerota, Planctomycetota, Verrucomicrobiota. Molecular signatures Planctomycetota, Verrucomicrobiota, and Chlamydiota in the traditional molecular phylogeny view are considered as phyla and also cluster together in the PVC superphylum, along with the candidate phyla Omnitrophic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verrucomicrobiota
Verrucomicrobiota is a phylum of Gram-negative bacteria that contains only a few described species. The species identified have been isolated from fresh water, marine and soil environments and human faeces. A number of as-yet uncultivated species have been identified in association with eukaryotic hosts including extrusive explosive ectosymbionts of protists and endosymbionts of nematodes residing in their gametes. Verrucomicrobiota are abundant within the environment, though relatively inactive. This phylum is considered to have two sister phyla: Chlamydiota (formerly Chlamydiae) and Lentisphaerota (formerly Lentisphaerae) within the PVC superphylum. The Verrucomicrobiota phylum can be distinguished from neighbouring phyla within the PVC group by the presence of several conserved signature indels (CSIs). These CSIs represent unique, synapomorphic characteristics that suggest common ancestry within Verrucomicrobiota and an independent lineage amidst other bacteria. CSIs have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victivallis Vadensis
''Victivallis vadensis'' is a Gram-negative, coccus-shaped, bacteria found in the human digestive tract. It measures approximately 0.5-1.3 micrometers in diameter, is non-motile and chemoorganotrophic, and does not form spores. ''Victivallis vadensis'' is strictly anaerobic, as are 90 percent of the bacteria in the human gastrointestinal system. History ''Victivallis vadensis'' was originally known as strain CelloT, as it is able to use cellobiose as a carbon source. It was later renamed for an area in the Netherlands, known as “Food Valley”, near the scientists at Wageningen University, who first identified the organism. (''Victus'' is Latin for ''food''; ''vallis'' is Latin for ''valley''.) Diversity ''Victavallis vadensis'' is a facultative anaerobe, like most gut microbes. It has only been sourced from human feces to date and is therefore known only to exist in the human gastrointestinal tract, and is currently the only organism belonging to the order ''Victivallal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Center For Biotechnology Information
The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is located in Bethesda, Maryland, and was founded in 1988 through legislation sponsored by US Congressman Claude Pepper. The NCBI houses a series of databases relevant to biotechnology and biomedicine and is an important resource for bioinformatics tools and services. Major databases include GenBank for DNA sequences and PubMed, a bibliographic database for biomedical literature. Other databases include the NCBI Epigenomics database. All these databases are available online through the Entrez search engine. NCBI was directed by David Lipman, one of the original authors of the BLAST sequence alignment program and a widely respected figure in bioinformatics. GenBank NCBI had responsibility for making available the GenBank DNA seque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
