| Prevotella bryantii | |
|---|---|
Scientific classification  | |
| Domain: | Bacteria |
| Phylum: | Bacteroidota |
| Class: | Bacteroidia |
| Order: | Bacteroidales |
| Family: | Prevotellaceae |
| Genus: | Prevotella |
| Species: | P. bryantii |
| Binomial name | |
| Prevotella bryantii Avgustin et al. 1997 | |
Prevotella bryantii, previously known as Bacteroides ruminicola subsp. brevis biovar 3, is a species of bacterium isolated from the bovine rumen. [1]
The phylum Bacteroidota is composed of three large classes of Gram-negative, nonsporeforming, anaerobic or aerobic, and rod-shaped bacteria that are widely distributed in the environment, including in soil, sediments, and sea water, as well as in the guts and on the skin of animals.
Acidobacteriota is a phylum of Gram-negative bacteria. Its members are physiologically diverse and ubiquitous, especially in soils, but are under-represented in culture.
Thermus is a genus of thermophilic bacteria. It is one of several bacteria belonging to the Deinococcota phylum. According to comparative analysis of 16S rRNA, this is one the most ancient group of bacteria Thermus species can be distinguished from other genera in the family Thermaceae as well as all other bacteria by the presence of eight conserved signature indels found in proteins such as adenylate kinase and replicative DNA helicase as well as 14 conserved signature proteins that are exclusively shared by members of this genus.
Streptococcus bovis is a group of strains of Gram-positive bacteria, originally described as a species, that in humans is associated with urinary tract infections, endocarditis, sepsis, and colorectal cancer. S. bovis is commonly found in the alimentary tract of cattle, sheep, and other ruminants, and may cause ruminal acidosis. It is also associated with spontaneous bacterial peritonitis, a frequent complication occurring in patients affected by cirrhosis. Equivalence with Streptococcus equinus has been contested.
Denitrobacterium is a genus of Actinomycetota with a single species, in the family Coriobacteriaceae. Originally isolated from the bovine rumen, Denitrobacterium are non-motile and non-spore forming. The only described species in this genus is Denitrobacterium detoxificans. The specific niche of this bacterium in the bovine rumen is theorized to be the detoxification/metabolism of nitrotoxins and miserotoxin.
Prevotella is a genus of Gram-negative bacteria.
Campylobacter rectus is a species of Campylobacter. It is implicated as a pathogen in chronic periodontitis, which can induce bone loss. This motile bacillus is a Gram negative, facultative anaerobe. C. rectus is associated with hypertension together with Prevotella melaninogenica and Veillonella parvula.
Desulfosporosinus is a genus of strictly anaerobic, sulfate-reducing bacteria, often found in soil.
Prevotella nigrescens is a species of bacterium. Prevotella nigrescens has a gram negative gram stain. When P. nigrescens microflora colonize they trigger an over-aggressive response from the immune system and increase the incidence of many diseases and infections. One specific type of bacteria that is part of the normal oral flora but leads to disease when it infects the local tissue. This bacteria has no means of motility and has a Bacilli (rod) shape. Prevotella species are part of the human oral and vaginal flora. They play a role in the pathogenesis of periodontal disease, gingivitis, and extraoral infections such as nasopharyngeal and intra-abdominal infections also some odontogenic infections, and strains are usually carried in families, in so-called intrafamilial carriage. It is also associated with carotid atherosclerosis.
Prevotella albensis, previously known as Bacteroides ruminicola subsp. ruminicola, is a species of bacterium.
Prevotella brevis is a species of bacterium.
Methylocella tundrae is a species of bacterium. It is notable for oxidising methane. Its cells are aerobic, Gram-negative, non-motile, dinitrogen-fixing rods. Strain T4T is the type strain.
Methanogens are a group of microorganisms that produce methane as a byproduct of their metabolism. They play an important role in the digestive system of ruminants. The digestive tract of ruminants contains four major parts: rumen, reticulum, omasum and abomasum. The food with saliva first passes to the rumen for breaking into smaller particles and then moves to the reticulum, where the food is broken into further smaller particles. Any indigestible particles are sent back to the rumen for rechewing. The majority of anaerobic microbes assisting the cellulose breakdown occupy the rumen and initiate the fermentation process. The animal absorbs the fatty acids, vitamins and nutrient content on passing the partially digested food from the rumen to the omasum. This decreases the pH level and initiates the release of enzymes for further breakdown of the food which later passes to the abomasum to absorb remaining nutrients before excretion. This process takes about 9–12 hours.
Anseongella is a genus from the family of Sphingobacteriaceae.
Roseivirga is a strictly aerobic genus from the phylum Bacteroidota.
Polaribacter is a genus in the family Flavobacteriaceae. They are gram-negative, aerobic bacteria that can be heterotrophic, psychrophilic or mesophilic. Most species are non-motile and species range from ovoid to rod-shaped. Polaribacter forms yellow- to orange-pigmented colonies. They have been mostly adapted to cool marine ecosystems, and their optimal growth range is at a temperature between 10 and 32 °C and at a pH of 7.0 to 8.0. They are oxidase and catalase-positive and are able to grow using carbohydrates, amino acids, and organic acids.
Janibacter is a genus of Gram positive, nonmotile, non-sporeforming bacteria. The genus name is derived from the two-faced Roman god Janus, referring to the fact that the cells of the original strain could be rod-shaped or coccoid.
Janibacter terrae is a bacterium from the genus Janibacter which has been isolated from soil in Korea. Janibacter terrae is able to degrade trichloroethylene. Janibacter brevis was originally classified as its own species, but was later found to be a heterotypic synonym of J. terrae.
Mariniflexile is a genus in the phylum Bacteroidota (Bacteria). The various species have been recovered from sea water, sea urchins, springs, brackish water, and an oyster.
Alloprevotella tannerae is a Gram-negative, obligately anaerobic, non-spore-forming, rod-shaped and non-motile bacterium from the genus of Alloprevotella which has been isolated from a human gingival crevice.
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