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Biovar
A biovar is a variant prokaryotic strain that differs physiologically or biochemically from other strains in a particular species. Morphovars (or morphotypes) are those strains that differ morphologically. Serovars (or serotypes) are those strains that have antigenic properties that differ from other strains. __FORCETOC__ List of biovars This is a list of biovars and strains of biovars listed at the NCBI Taxonomy database:Schoch CL, et al. NCBI Taxonomy: a comprehensive update on curation, resources and tools. Database (Oxford). 2020: baaa062. PubMed: 32761142 PMC: PMC7408187 * ''Acinetobacter calcoaceticus'' biovar ''anitratus'', a homotypic synonym for ''Acinetobacter calcoaceticus'' subsp. ''anitratus'' * ''Actinobacillus anseriformium'' biovar 1 * ''Actinobacillus anseriformium'' biovar 2 * ''Aeromonas veronii'' bv. ''sobria'' * ''Aeromonas veronii'' bv. ''veronii'' * ''Agrobacterium'' biovar 1, a synonym for ''Agrobacterium tumefaciens'' complex * ''Agrobacterium'' biovar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillus Cereus Biovar Anthracis
''Bacillus cereus'' biovar ''anthracis'' is a variant of the ''Bacillus cereus'' bacterium that has acquired plasmids similar to those of ''Bacillus anthracis''. As a result, it is capable of causing anthrax. In 2016, it was added to the Centers for Disease Control and Prevention, CDC's list of select agents and toxins. ''Bacillus cereus'' biovar ''anthracis'' infection has caused significant mortality in numerous mammalian species, including Common chimpanzee, chimpanzees. See also * Biovar References Bacillus, cereus biovar Anthrax Biovars {{bacilli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serovar
A serotype or serovar is a distinct variation within a species of bacteria or virus or among immune cells of different individuals. These microorganisms, viruses, or cells are classified together based on their surface antigens, allowing the epidemiologic classification of organisms to the subspecies level. A group of serovars with common antigens is called a serogroup or sometimes ''serocomplex''. Serotyping often plays an essential role in determining species and subspecies. The '' Salmonella'' genus of bacteria, for example, has been determined to have over 2600 serotypes. ''Vibrio cholerae'', the species of bacteria that causes cholera, has over 200 serotypes, based on cell antigens. Only two of them have been observed to produce the potent enterotoxin that results in cholera: O1 and O139. Serotypes were discovered by the American microbiologist Rebecca Lancefield in 1933. Role in organ transplantation The immune system is capable of discerning a cell as being 'self' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeromonas Veronii Biovar Sobria Gram Stain On Microscope Slide
''Aeromonas'' is a genus of Gram-negative, facultative anaerobic, rod-shaped bacteria that morphologically resemble members of the family Enterobacteriaceae. Most of the 14 described species have been associated with human diseases. The most important pathogens are '' A. hydrophila'', '' A. caviae'', and '' A. veronii'' biovar ''sobria''. The organisms are ubiquitous in fresh and brackish water. They group with the gamma subclass of the Proteobacteria. Two major diseases associated with ''Aeromonas'' are gastroenteritis and wound infections, with or without bacteremia. Gastroenteritis typically occurs after the ingestion of contaminated water or food, whereas wound infections result from exposure to contaminated water. In its most severe form, ''Aeromonas'' spp. can cause necrotizing fasciitis, which is life-threatening, usually requiring treatment with antibiotics and even amputation. Although some potential virulence factors (e.g. endotoxins, hemolysins, enterotoxins, adhe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agrobacterium Biovar 3
''Allorhizobium vitis'' is a plant pathogen that infects grapevines. The species is best known for causing a tumor known as crown gall disease. One of the virulent strains, ''A. vitis'' S4, is responsible both for crown gall on grapevines and for inducing a hypersensitive response in other plant species. Grapevines that have been affected by crown gall disease produce fewer grapes than unaffected plants. Though not all strains of ''A. vitis'' are tumorigenic, most strains can damage plant hosts. ''A. vitis'' shares many genetic and morphological characteristics with several ''Agrobacterium'' species, including ''A. tumefaciens''. The two species have overlapping host ranges, and both ''A. vitis'' and ''A. tumefaciens'' may reduce the yield of infected crops. For this reason, research on ''A. vitis'' focuses on transmission and methods of control. Biology Identification ''A. vitis'' is a Gram-negative bacterium with a thin peptidoglycan layer in its cell wall. The species is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bisgaard Taxon 3 Biovar 1
Bisgaard is a Danish surname. Notable people with the surname include: * Erik Bisgaard (1890–1987), Danish rower * Morten Bisgaard (born 1974), Danish footballer * Per Bisgaard (born 1955), Danish politician {{surname Danish-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bifidobacterium Longum Subsp
''Bifidobacterium'' is a genus of gram-positive, nonmotile, often branched anaerobic bacteria. They are ubiquitous inhabitants of the gastrointestinal tract though strains have been isolated from the vagina and mouth ('' B. dentium'') of mammals, including humans. Bifidobacteria are one of the major genera of bacteria that make up the gastrointestinal tract microbiota in mammals. Some bifidobacteria are used as probiotics. Before the 1960s, ''Bifidobacterium'' species were collectively referred to as ''Lactobacillus bifidus''. History In 1899, Henri Tissier, a French pediatrician at the Pasteur Institute in Paris, isolated a bacterium characterised by a Y-shaped morphology ("bifid") in the intestinal microbiota of breast-fed infants and named it "bifidus". In 1907, Élie Metchnikoff, deputy director at the Pasteur Institute, propounded the theory that lactic acid bacteria are beneficial to human health. Metchnikoff observed that the longevity of Bulgarians was the result ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bifidobacterium Longum Bv
''Bifidobacterium'' is a genus of gram-positive, nonmotile, often branched anaerobic bacteria. They are ubiquitous inhabitants of the gastrointestinal tract though strains have been isolated from the vagina and mouth ('' B. dentium'') of mammals, including humans. Bifidobacteria are one of the major genera of bacteria that make up the gastrointestinal tract microbiota in mammals. Some bifidobacteria are used as probiotics. Before the 1960s, ''Bifidobacterium'' species were collectively referred to as ''Lactobacillus bifidus''. History In 1899, Henri Tissier, a French pediatrician at the Pasteur Institute in Paris, isolated a bacterium characterised by a Y-shaped morphology ("bifid") in the intestinal microbiota of breast-fed infants and named it "bifidus". In 1907, Élie Metchnikoff, deputy director at the Pasteur Institute, propounded the theory that lactic acid bacteria are beneficial to human health. Metchnikoff observed that the longevity of Bulgarians was the result ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bibersteinia Trehalosi
''Bibersteinia'' is a Gram-negative and non-motile, genus of bacteria from the family of Pasteurellaceae The Pasteurellaceae comprise a large family of Gram-negative bacteria. Most members live as commensals on mucosal surfaces of birds and mammals, especially in the upper respiratory tract. Pasteurellaceae are typically rod-shaped, and are a notabl ... with one known species ('' Bibersteinia trehalosi''). ''Bibersteinia'' is named after Ernst L. Biberstein. ''Bibersteinia trehalosi'' is a pathogen of sheep and can cause systemic infections in sheep. References Further reading Pathogenicity of Bibersteinia trehalosi in bovine calves * * Pasteurellales Bacteria genera {{Gammaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pasteurella Haemolytica Biovar T
__NOTOC__ ''Pasteurella'' is a genus of Gram-negative, facultatively anaerobic bacteria. ''Pasteurella'' species are nonmotile and pleomorphic, and often exhibit bipolar staining ("safety pin" appearance). Most species are catalase- and oxidase-positive. The genus is named after the French chemist and microbiologist, Louis Pasteur, who first identified the bacteria now known as ''Pasteurella multocida'' as the agent of chicken cholera. Pathogenesis Many ''Pasteurella'' species are zoonotic pathogens, and humans can acquire an infection from domestic animal bites. In cattle, sheep, and birds, ''Pasteurella'' species can cause a life-threatening pneumonia; in cats and dogs, however, ''Pasteurella'' is not a cause of disease, and constitutes part of the normal flora of the nose and mouth. ''Pasteurella haemolytica'' is a species that infects mainly cattle and horses: '' P. multocida'' is the most frequent causative agent in human ''Pasteurella'' infection. Common symptoms of pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillus Wiedmannii Bv
''Bacillus'' (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum ''Bacillota'', with 266 named species. The term is also used to describe the shape (rod) of other so-shaped bacteria; and the plural ''Bacilli'' is the name of the class of bacteria to which this genus belongs. ''Bacillus'' species can be either obligate aerobes which are dependent on oxygen, or facultative anaerobes which can survive in the absence of oxygen. Cultured ''Bacillus'' species test positive for the enzyme catalase if oxygen has been used or is present. ''Bacillus'' can reduce themselves to oval endospores and can remain in this dormant state for years. The endospore of one species from Morocco is reported to have survived being heated to 420 °C. Endospore formation is usually triggered by a lack of nutrients: the bacterium divides within its cell wall, and one side then engulfs the other. They are not true spores (i.e., not an offspring). Endospore format ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillus Toyonensis
''Bacillus'' (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum ''Bacillota'', with 266 named species. The term is also used to describe the shape (rod) of other so-shaped bacteria; and the plural ''Bacilli'' is the name of the class of bacteria to which this genus belongs. ''Bacillus'' species can be either obligate aerobes which are dependent on oxygen, or facultative anaerobes which can survive in the absence of oxygen. Cultured ''Bacillus'' species test positive for the enzyme catalase if oxygen has been used or is present. ''Bacillus'' can reduce themselves to oval endospores and can remain in this dormant state for years. The endospore of one species from Morocco is reported to have survived being heated to 420 °C. Endospore formation is usually triggered by a lack of nutrients: the bacterium divides within its cell wall, and one side then engulfs the other. They are not true spores (i.e., not an offspring). Endospore format ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacillus Cereus Biovar Toyoi
''Bacillus'' (Latin "stick") is a genus of Gram-positive, rod-shaped bacteria, a member of the phylum ''Bacillota'', with 266 named species. The term is also used to describe bacillus (shape), the shape (rod) of other so-shaped bacteria; and the plural ''Bacilli'' is the name of the class (biology), class of bacteria to which this genus belongs. ''Bacillus'' species can be either obligate aerobes which are dependent on oxygen, or facultative anaerobes which can survive in the absence of oxygen. Cultured ''Bacillus'' species test positive for the enzyme catalase if oxygen has been used or is present. ''Bacillus'' can reduce themselves to oval endospores and can remain in this dormant state for years. The endospore of one species from Morocco is reported to have survived being heated to 420 °C. Endospore formation is usually triggered by a lack of nutrients: the bacterium divides within its cell wall, and one side then engulfs the other. They are not true spores (i.e., not an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
