|
Yersinia
''Yersinia'' is a genus of bacteria in the family Yersiniaceae. ''Yersinia'' species are Gram-negative, coccobacilli bacteria, a few micrometers long and fractions of a micrometer in diameter, and are facultative anaerobes. Some members of ''Yersinia'' are pathogenic in humans; in particular, '' Y. pestis'' is the causative agent of the plague. Rodents are the natural reservoirs of ''Yersinia''; less frequently, other mammals serve as the host. Infection may occur either through blood (in the case of ''Y. pestis'') or in an alimentary fashion, occasionally via consumption of food products (especially vegetables, milk-derived products, and meat) contaminated with infected urine or feces. Speculations exist as to whether or not certain ''Yersinia'' can also be spread by protozoonotic mechanisms, since ''Yersinia'' species are known to be facultative intracellular parasites; studies and discussions of the possibility of amoeba-vectored (through the cyst form of the protozoan) '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Pestis
''Yersinia pestis'' (''Y. pestis''; formerly '' Pasteurella pestis'') is a gram-negative, non-motile, coccobacillus bacterium without spores that is related to both ''Yersinia pseudotuberculosis'' and ''Yersinia enterocolitica''. It is a facultative anaerobic organism that can infect humans via the Oriental rat flea (''Xenopsylla cheopis''). It causes the disease plague, which caused the first plague pandemic and the Black Death, the deadliest pandemic in recorded history. Plague takes three main forms: pneumonic, septicemic, and bubonic. ''Yersinia pestis'' is a parasite of its host, the rat flea, which is also a parasite of rats, hence ''Y. pestis'' is a hyperparasite. ''Y. pestis'' was discovered in 1894 by Alexandre Yersin, a Swiss/French physician and bacteriologist from the Pasteur Institute, during an epidemic of the plague in Hong Kong. Yersin was a member of the Pasteur school of thought. Kitasato Shibasaburō, a Japanese bacteriologist who practised Koch's me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Pseudotuberculosis
''Yersinia pseudotuberculosis'' is a Gram-negative bacterium that causes Far East scarlet-like fever in humans, who occasionally get infected zoonotically, most often through the food-borne route. Animals are also infected by ''Y. pseudotuberculosis''. The bacterium is urease positive. Pathogenesis In animals, ''Y. pseudotuberculosis'' can cause tuberculosis-like symptoms, including localized tissue necrosis and granulomas in the spleen, liver, and lymph nodes. In humans, symptoms of Far East scarlet-like fever are similar to those of infection with ''Yersinia enterocolitica'' (fever and right-sided abdominal pain), except that the diarrheal component is often absent, which sometimes makes the resulting condition difficult to diagnose. ''Y. pseudotuberculosis'' infections can mimic appendicitis, especially in children and younger adults, and, in rare cases, the disease may cause skin complaints (erythema nodosum), joint stiffness and pain (reactive arthritis), or spread of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Enterocolitica
''Yersinia enterocolitica'' is a Gram-negative, bacillus-shaped bacterium, belonging to the family Yersiniaceae. It is motile at temperatures of 22–29° C (72–84 °F), but becomes nonmotile at normal human body temperature. ''Y. enterocolitica'' infection causes the disease yersiniosis, which is an animal-borne disease occurring in humans, as well as in a wide array of animals such as cattle, deer, pigs, and birds. Many of these animals recover from the disease and become carriers; these are potential sources of contagion despite showing no signs of disease. The bacterium infects the host by sticking to its cells using trimeric autotransporter adhesins. The genus ''Yersinia'' includes 20 species: '' Y. aldovae'', '' Y. aleksiciae'', '' Y. bercovieri'', '' Y. canariae'', ''Y. enterocolitica'', '' Y. entomophaga'', '' Y. frederiksenii'', '' Y. hibernica'', '' Y. intermedia'', '' Y. kristensenii'', '' Y. massiliensis'', '' Y. mollaretii'', '' Y. nurmii'', '' Y. pekkanenii'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Bercovieri
''Yersinia bercovieri'' is a Gram-negative species of enteric bacteria. Etymology ''Yersinia bercovieri'', N.L. gen. masc. n. bercovieri, of Bercovier, named in honor of Hervé Bercovier, who first described biogroups 3A and 3B for ''Yersinia enterocolitica''. These biogroups are now known as ''Yersinia mollaretii ''Yersinia mollaretii'' is a Gram-negative species of bacteria. The species is named after Henri Mollaret, the former head of the National ''Yersinia'' Center at Institut Pasteur The Pasteur Institute (french: Institut Pasteur) is a French n ...'' and ''Yersinia bercovieri'' respectively. References Further reading * * External linksLSPN lpsn.dsmz.de*Type strain of ''Yersinia bercovieri'' at Bac''Dive'' - the Bacterial Diversity Metadatabase bercovieri Bacteria described in 1988 {{Enterobacterales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersiniaceae
The Yersiniaceae are a family of Gram-negative bacteria that includes some familiar pathogens. For example, the type genus ''Yersinia'' includes ''Yersinia pestis'', the causative agent of plague. This family is a member of the order Enterobacterales in the class Gammaproteobacteria of the phylum Pseudomonadota. The name Yersiniaceae is derived from the Latin term ''Yersinia'', referring the type genus of the family and the suffix "-aceae", an ending used to denote a family. Together, Yersiniaceae refers to a family whose nomenclatural type is the genus ''Yersinia''. Biochemical characteristics and molecular signatures These bacteria are motile, catalase-positive, and do not produce hydrogen disulfide. Analyses of genome sequences from Yersiniaceae species identified three conserved signature indels (CSIs) that are uniquely present in this family in the proteins TetR family transcriptional regulator and a hypothetical protein. These CSIs provide a reliable molecular method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Rochesterensis
''Yersinia rochesterensis'' is a Gram-negative, motile, rod-shaped bacterium that forms circular colonies and was isolated from human feces. This potentially pathogenic species has been isolated in human stools in France and in the United States where it was characterized at the Mayo Clinic. A ''Y. rochesterensis'' strain, isolated from hare and initially identified as ''Yersinia kristensenii ''Yersinia kristensenii'' is a species of bacteria.Bercovier, Hervé, et al. "Yersinia kristensenii: A new species of Enterobacteriaceae composed of sucrose-negative strains (formerly called atypical Yersinia enterocolitica or Yersinia enterocoli ...'', was serotyped as O:12,25. References External linksLSPN lpsn.dsmz.de [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Intermedia
''Yersinia intermedia'' is a Gram-negative species of bacteria which uses rhamnose, melibiose, and raffinose. Its type strain is strain 3953 (=CIP 80-28 =ATCC 29909 =Bottone 48 =Chester 48). It has been found in fish, and contains several biotypes. It is not considered of clinical relevance, being isolated from humans in a routine manner. References Further reading External linksLSPN lpsn.dsmz.de intermedia
Intermedia is an art theory term coined in the mid-1960s by Fluxus artist Dick Higgins to describe various interdisciplinar ...
[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Frederiksenii
''Yersinia frederiksenii'' is a Gram-negative species of bacteria.Ursing, Jan, et al. "Yersinia frederiksenii: A new species of Enterobacteriaceae composed of rhamnose-positive strains (formerly called atypical Yersinia enterocolitica or Yersinia enterocolitica-like)." Current Microbiology 4.4 (1980): 213-217. It uses rhamnose and sucrose. Its type strain is strain 6175 (=CIP 80–29). In humans, it can cause gastrointestinal infection An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. An infectious disease, also known as a transmissible disease or communicable dis ...s, while it has also been found in fish. References External linksLSPN lpsn.dsmz.de [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Ruckeri
''Yersinia ruckeri'' is a species of Gram-negative bacteria, known for causing enteric redmouth disease Enteric redmouth disease, or simply redmouth disease is a bacterial infection of freshwater and marine fish caused by the pathogen ''Yersinia ruckeri''. It is primarily found in rainbow trout (''Oncorhynchus mykiss'') and other cultured salmonids. ... in some species of fish. Strain 2396-61 (= ATCC 29473) is its type strain. A draft genome for ''Yersinia ruckeri'' has been published. References Further reading * * * * External linksLSPN lpsn.dsmz.de*Type strain of ''Yersinia ruckeri'' at Bac''Dive'' - the Bacterial Diversity Metadatabase ruckeri Bacteria described in 1978 {{Enterobacterales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Thracica
''Yersinia thracica'' is a Gram-negative species of enteric bacteria in the Yersinia genus that is closely related to ''Yersinia kristensenii''. Reportedly, it has only been isolated in animals. The type strain, IP34646T, was isolated from diseased rainbow trout while other isolates are from birds, pig feces, and wild boars The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species is n .... References External linksLSPN lpsn.dsmz.de [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Proxima
''Yersinia proxima'' is a Gram-negative bacterium in the family Yersiniaceae that is phylogenetically close to Yersinia enterocolitica. Members of this species has been found in human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, cultu ... feces. References External linksLSPN lpsn.dsmz.de proxima Bacteria descr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yersinia Artesiana
''Yersinia artesiana'' are short Gram-negative rod bacteria in the Yersiniaceae family that have been isolated from human Humans (''Homo sapiens'') are the most abundant and widespread species of primate, characterized by bipedalism and exceptional cognitive skills due to a large and complex brain. This has enabled the development of advanced tools, cultu ... stool. References External linksLSPN lpsn.dsmz.de artesiana Bacteria described in 2020 {{Enterobacterales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
