| 词条 | Yersinia |
| 释义 |
| color = lightgrey | name = Yersinia | image = Yersinia pestis.jpg | regnum = Bacteria | phylum = Proteobacteria | classis = Gammaproteobacteria | ordo = Enterobacteriales | familia = Yersiniaceae | genus = Yersinia | genus_authority = van Loghem, 1944 | subdivision_ranks = Species | subdivision = {{ubl |Y. aldovae{{sup|yb}} |Y. aleksiciae |Y. bercovieri{{sup|yb}} |Y. enterocolitica{{sup|yb}} Y. enterocolitica subsp. enterocolitica Y. enterocolitica subsp. palearctica |Y. entomophaga |Y. frederiksenii{{sup|yb}} |Y. intermedia{{sup|yb}} |Y. kristensenii{{sup|yb}} |Y. massiliensis{{sup|yb}} |Y. mollaretii{{sup|yb}} |Y. nurmii |Y. pekkanenii |Y. pestis{{sup|yb}} Y. pestis subsp. pestis Y. pestis subsp. medievalis Y. pestis subsp. orientalis |Y. philomiragia |Y. pseudotuberculosis{{sup|yb}} Y. pseudotuberculosis subsp. pestis Y. pseudotuberculosis subsp. pseudotuberculosis |Y. rohdei{{sup|yb}} |Y. ruckeri{{sup|yb}} |Y. similis }} }} Yersinia is a genus of bacteria in the family Yersiniaceae.[1] Yersinia species are Gram-negative, coccobacilli bacteria, a few micrometers long and fractions of a micrometer in diameter, and are facultative anaerobes.[2] 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) Yersinia propagation and proliferation are now in progress.[3] Microbial physiologyAn interesting feature peculiar to some of the Yersinia bacteria is the ability to not only survive, but also to actively proliferate at temperatures as low as 1–4 °C (e.g., on cut salads and other food products in a refrigerator). Yersinia bacteria are relatively quickly inactivated by oxidizing agents such as hydrogen peroxide and potassium permanganate solutions. GeneticsDatabaseThe creation of YersiniaBase, a data and tools collection for the reporting and comparison of Yersinia species genome sequence data, was reported in January 2015.[4] The provisional representation of species addressed by the resource has been indicated in the TaxBox on this page by a superscript 'yb' beside the species name.[4] Development of YersiniaBase was funded by the University of Malaya and the Ministry of Education, Malaysia.[4] PathogenesisY. pestis is the causative agent of plague. The disease caused by Y. enterocolitica is called yersiniosis. Yersinia may be associated with Crohn's disease, an inflammatory autoimmune condition of the gut. Iranian sufferers of Crohn's disease were more likely to have had earlier exposure to refrigerators at home,[5] consistent with its unusual ability to thrive at low temperatures. Yersinia is implicated as one of the causes of reactive arthritis worldwide.[6]Also, the genus is associated with pseudoappendicitis, which is an incorrect diagnosis of appendicitis due to a similar presentation.[7] History{{for|other genera named after people|List of bacterial genera named after personal names}}{{See also|Bacterial taxonomy}}Y. pestis, the first known species, was identified in 1894[8] by A.E.J. Yersin, a Swiss bacteriologist, and Kitasato Shibasaburō, a Japanese bacteriologist.[9] It was formerly described as Pasteurella pestis (known trivially as the plague-bacillus by Lehmann and Neumann in 1896.[9][10] In 1944, van Loghem reclassified the species P. pestis and P. rondentium into a new genus, Yersinia.[9][10] Following the introduction of the bacteriological code, it was accepted as valid in 1980.[10]References1. ^{{cite journal|last1=Adeolu|first1=Mobolaji|display-authors=etal|title=Genome-based phylogeny and taxonomy of the ‘Enterobacteriales’: proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov., Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov.|journal=International Journal of Systematic and Evolutionary Microbiology|date=1 December 2016|doi=10.1099/ijsem.0.001485}} 2. ^{{cite book | author = Ryan KJ; Ray CG (editors) | title = Sherris Medical Microbiology | edition = 4th | publisher = McGraw Hill | year = 2004 | pages= 368–70| isbn = 0-8385-8529-9 }} 3. ^{{cite journal | year = 2008 | title = Protection of waterborne pathogens by higher organisms in drinking water: a review | journal = Can. J. Microbiol. | volume = 54 | issue = 7 | pages = 509–524 | doi = 10.1139/W08-039 | format = | accessdate = | pmid = 18641697| author = Bichai | first = F. | last2 = Payment | first2 = P. | last3 = Barbeau | first3 = B. }} 4. ^1 2 {{cite journal | journal=BMC Bioinformatics | title=YersiniaBase: a genomic resource and analysis platform for comparative analysis of Yersinia | doi=10.1186/s12859-014-0422-y | date=16 January 2015 | author=Tan, Shi Yang | author2=Dutta, Avirup | author3=Jakubovics, Nick S. | author4=Ang, Mia Yang | author5=Siow, Chuek Chuen | author6=Mutha, Naresh V. R. | author7=Heydari, Hamed | author8=Wong, Guat Jah | author9=Choo, Siew Woh | display-authors=3 | pmc=4384384 }}{{open access}} 5. ^{{Cite journal| last3 = Nouraei | first1 = F.| last2 = Alberti| last7 = Nasseri-Moghaddam | first2 = C. | first3 = M.| last6 = Meinzer| last5 = Zaccaria| last4 = Vahedi | first4 = H. | first5 = I. | first6 = U. | first7 = S.| last9 = Momenzadeh | first8 = R.| last1 = Malekzadeh | first9 = S.| title = Crohn's disease and early exposure to domestic refrigeration| last8 = Sotoudehmanesh| format = Free full text| editor1-first = Antje| journal = PLoS ONE| volume = 4| last10 = Khaleghnejad| issue = 1| editor1-last = Timmer | first14 = J. P.| last14 = Hugot | first13 = R.| last13 = Malekzadeh | first12 = G.| last12 = Olfati| pages = e4288 | first11 = S.| year = 2009| month = | last11 = Rashtak| pmid = 19177167| pmc = 2629547| doi = 10.1371/journal.pone.0004288 | first10 = R.|bibcode = 2009PLoSO...4.4288M }} 6. ^{{cite journal| author = Nikkari | year = 1992 | first = S.| last2 = Merilahti-Palo | first2 = R.| last3 = Saario | first3 = R.| last4 = Söderstrom | first4 = K. O.| last5 = Granfors | first5 = K.| last6 = Skurnik | first6 = M.| last7 = Toivanen | first7 = P. | title = Yersinia-triggered reactive arthritis. use of polymerase chain reaction and immunocytochemical staining in the detection of bacterial components from synovial specimens | journal = Arthritis & Rheumatism | volume = 35 | issue = 6 | pages = 682–687 | doi = 10.1002/art.1780350613 }} 7. ^{{cite web | title = EMedicine | url = http://emedicine.medscape.com/article/970186-overview | accessdate = 2010-07-22}} 8. ^{{cite web|url=http://www.antimicrobe.org/h04c.files/history/yersinia-pestis.asp|title=Discovery of Yersinia pestis|author=Rebecca Maki from University of Pittsburghby}} 9. ^1 2 {{Cite journal | last1 = Loghem | first1 = J. J. | doi = 10.1007/BF02272779 | title = The classification of the plague-bacillus | journal = Antonie van Leeuwenhoek | volume = 10 | issue = 1–2 | pages = 15–16 | year = 1944 | pmid = 20990853| pmc = }} 10. ^1 2 {{lpsn|xz/yersinia.html|Yersinia}} External links
3 : Enterobacteriaceae|Yersinia|Bacteria genera |
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