https://microbewiki.kenyon.edu/index.php?title=Enterobacter&feed=atom&action=historyEnterobacter - Revision history2024-03-29T10:11:12ZRevision history for this page on the wikiMediaWiki 1.39.6https://microbewiki.kenyon.edu/index.php?title=Enterobacter&diff=54393&oldid=prevBarichD at 21:40, 30 July 20102010-07-30T21:40:56Z<p></p>
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</table>BarichDhttps://microbewiki.kenyon.edu/index.php?title=Enterobacter&diff=5460&oldid=prevBarichD at 14:11, 16 August 20062006-08-16T14:11:09Z<p></p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">'''NCBI:<br />[http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=547&lvl=3&lin=f&keep=1&srchmode=1&unlock Taxonomy]<br /> Genome'''</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:E_sakazakii.jpg|frame|right|''Enterobacter sakazakii''. From [http://www.magma.ca/~scimat/E_sakaza.htm SCIMAT.]]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Image:E_sakazakii.jpg|frame|right|''Enterobacter sakazakii''. From [http://www.magma.ca/~scimat/E_sakaza.htm SCIMAT.]]]</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>''Enterobacter aerogenes; E. amnigenus; E. asburiae; E. cancerogenus; E. cloacae; E. cowanii; E. dissolvens; E. gergoviae; E. hormaechei; E. intermedius; E. kobei; E. nimipressuralis; E. pyrinus; E. sakazakii; Enterobacter'' sp.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>''Enterobacter aerogenes; E. amnigenus; E. asburiae; E. cancerogenus; E. cloacae; E. cowanii; E. dissolvens; E. gergoviae; E. hormaechei; E. intermedius; E. kobei; E. nimipressuralis; E. pyrinus; E. sakazakii; Enterobacter'' sp.</div></td></tr>
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<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''NCBI: [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=547&lvl=3&lin=f&keep=1&srchmode=1&unlock Taxonomy] Genome'''</ins></div></td></tr>
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</table>BarichDhttps://microbewiki.kenyon.edu/index.php?title=Enterobacter&diff=5022&oldid=prevBarichD at 14:04, 14 August 20062006-08-14T14:04:32Z<p></p>
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</table>BarichDhttps://microbewiki.kenyon.edu/index.php?title=Enterobacter&diff=2147&oldid=prevTashiror: /* Pathology */2006-06-05T13:31:07Z<p><span dir="auto"><span class="autocomment">Pathology</span></span></p>
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Image:baby1.jpg|frame|left|A picture of a baby with a bottle. Before baby formula was routinely screened for ''Enterobacter'', many infants contracted bacterial infections due to this ''Enterobacter's'' ability to survive the heating prepartions of the powered formula. From <del style="font-weight: bold; text-decoration: none;">[http://www.jkdds.com/html/baby_tooth_decay.html </del>Jason S. Kasarsky.<del style="font-weight: bold; text-decoration: none;">]</del>]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Image:baby1.jpg|frame|left|A picture of a baby with a bottle. Before baby formula was routinely screened for ''Enterobacter'', many infants contracted bacterial infections due to this ''Enterobacter's'' ability to survive the heating prepartions of the powered formula. From Jason S. Kasarsky.]]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Some symptoms of ''Enterobacter'' infections include bacteremia, lower respiratory tract infections, skin infections, soft tissue infections, urinary tract infections, UTI, endocarditis, intraabdominal infections, septic arthritis, osteomyelitis, and ophthalmic infections. They are an opportunistic pathogens that rarely cause disease in otherwise healthy individuals. This bacterium's virulence seems to be due largely to an endotoxin that it produces. Nosocomial infections are the most frequent type of ''Enterobacter'' infections, but community-acquired infections are sometimes observed. The bacteria usually infects people who stay in the hospital, especially on the ICU, for long periods of time as well as people how have used many antimicrobial agents, have serious underlying conditions (eg: diabetes, malignancies, burns, mechanical ventilation, etc.), use foreign devices such as intravenous catheters, and immunosuppression.These infections can be contracted endogenously via colonization of the skin, gastrointestinal tract, or urinary tract or exogenously from the "ubiquitous nature of these bacteria" (Sinave). In many cases, the hands of personnel, intravenous solutions, endoscopes, blood products, devices for monitoring intra-arterial pressure, and stethoscopes have been deemed the source for the infection. (Sinave) One specific species of this bacteria, ''Enterobacter sakazakii'', is well-known for causing infections in infants who were fed milk-based powered infant formulas. The bacteria, which was called a "yellow pigmented ''Enterobacter cloacae''" until 1980, survives when the contaminated powered formula is heated and prepared. Since it has caused several outbreaks of infection in the past, baby formulas are now effectively screened for ''E. sakazakii'' before they are sold. The infections caused in infants are neonatal meningitis, sepsis, and necrotizing enterocolitis; the reported case-fatality rate varies from 40-80% among infants who contract this bacterial infection (Health Canada).</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Some symptoms of ''Enterobacter'' infections include bacteremia, lower respiratory tract infections, skin infections, soft tissue infections, urinary tract infections, UTI, endocarditis, intraabdominal infections, septic arthritis, osteomyelitis, and ophthalmic infections. They are an opportunistic pathogens that rarely cause disease in otherwise healthy individuals. This bacterium's virulence seems to be due largely to an endotoxin that it produces. Nosocomial infections are the most frequent type of ''Enterobacter'' infections, but community-acquired infections are sometimes observed. The bacteria usually infects people who stay in the hospital, especially on the ICU, for long periods of time as well as people how have used many antimicrobial agents, have serious underlying conditions (eg: diabetes, malignancies, burns, mechanical ventilation, etc.), use foreign devices such as intravenous catheters, and immunosuppression.These infections can be contracted endogenously via colonization of the skin, gastrointestinal tract, or urinary tract or exogenously from the "ubiquitous nature of these bacteria" (Sinave). In many cases, the hands of personnel, intravenous solutions, endoscopes, blood products, devices for monitoring intra-arterial pressure, and stethoscopes have been deemed the source for the infection. (Sinave) One specific species of this bacteria, ''Enterobacter sakazakii'', is well-known for causing infections in infants who were fed milk-based powered infant formulas. The bacteria, which was called a "yellow pigmented ''Enterobacter cloacae''" until 1980, survives when the contaminated powered formula is heated and prepared. Since it has caused several outbreaks of infection in the past, baby formulas are now effectively screened for ''E. sakazakii'' before they are sold. The infections caused in infants are neonatal meningitis, sepsis, and necrotizing enterocolitis; the reported case-fatality rate varies from 40-80% among infants who contract this bacterial infection (Health Canada).</div></td></tr>
</table>Tashirorhttps://microbewiki.kenyon.edu/index.php?title=Enterobacter&diff=2146&oldid=prevTashiror: /* General: */2006-06-05T13:30:35Z<p><span dir="auto"><span class="autocomment">General:</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* Health Canada. Office of Laboratory Securty. <del style="font-weight: bold; text-decoration: none;">[http://www.hc-sc.gc.ca/pphb-dgspsp/msds-ftss/msds59e.html Material Safety </del>Data Sheet - Infectious Substances: ''Enterobacter'' spp.<del style="font-weight: bold; text-decoration: none;">]</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* Health Canada. Office of Laboratory Securty. Data Sheet - Infectious Substances: ''Enterobacter'' spp.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Roberts, D. P., P. D. Dery, I. Yucel, and J. S. Buyer. 1999. "Importance of ''pfkA'' for rapid growth of ''Enterobacter cloacae'' during colonization of crop seeds." ''Applied and Environmental Microbiology'', vol. 66, no. 1. (87-91)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Roberts, D. P., P. D. Dery, I. Yucel, and J. S. Buyer. 1999. "Importance of ''pfkA'' for rapid growth of ''Enterobacter cloacae'' during colonization of crop seeds." ''Applied and Environmental Microbiology'', vol. 66, no. 1. (87-91)</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Anaesthetist: [http://www.anaesthetist.com/icu/infect/bacteria/gramneg/enterobacter.htm Enterobacter]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* Anaesthetist: [http://www.anaesthetist.com/icu/infect/bacteria/gramneg/enterobacter.htm Enterobacter]</div></td></tr>
</table>Tashirorhttps://microbewiki.kenyon.edu/index.php?title=Enterobacter&diff=2143&oldid=prevTashiror at 13:28, 5 June 20062006-06-05T13:28:08Z<p></p>
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[[Image:E_sakazakii.jpg|frame|right|''Enterobacter sakazakii''. From [http://www.magma.ca/~scimat/E_sakaza.htm SCIMAT.]]]<br />
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==Classification==<br />
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===Higher order taxa:===<br />
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Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacteriales; Enterbacteriaceae<br />
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===Species:===<br />
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''Enterobacter aerogenes; E. amnigenus; E. asburiae; E. cancerogenus; E. cloacae; E. cowanii; E. dissolvens; E. gergoviae; E. hormaechei; E. intermedius; E. kobei; E. nimipressuralis; E. pyrinus; E. sakazakii; Enterobacter'' sp.<br />
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==Description and Significance==<br />
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''Enterobacter''bacteria are nosocomial opportunistic pathogens that are causing more infections including up to 5% of hospital-acquired septicemias, 5% of nosocomial pneumonias, 4% of nosocomial urinary tract infections, and 10% of postsurgical peritonitis cases (list from Hoffmann and Roggenkamp 2003). These bacteria also have some usefulness to humans, however; for example, ''Enterobacter cloacae'' is used in biological control of plant diseases (Anaesthetist).<br />
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==Genome Structure==<br />
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No ''Enterobacter'' bacterial genomes have been sequenced; however, several of the genes have been studied through mutants and other such means. For example, a mutation in ''pfkA'' in ''Enterobacter cloacae'' caused a change from what was rapid growth on certain carbohydrates as detected in seed exudates to considerably slower growth on other carbohydrates, amino acids, and organic acids (Roberts ''et al.'' 1999)<br />
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==Cell Structure and Metabolism==<br />
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''Enterobacter'' bacteria are motile, rod-shaped cells, some of which are encapsulated. They also possess peritrichous flagella. As facultative anaerobes, some ''Enterobacter'' bacteria ferment both glucose and lactose as a carbon source. Gas is produced from the metabolic processes, but they do not produce hydrogen sulfide. ''Enterobacter cloacae'' A-11 and other closely related bacteria are prototrophic, glycolytic strain of ''Enterobacter'' that are found on a number of different seeds and plants.<br />
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==Ecology==<br />
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''Enterobacter'' can be found on human skin and plants as well as in soil, water, sewage, intestinal tracts of humans and animals, and some dairy products (Health Canada). However, some species of ''Enterobacter'', such as ''Enterobacter'' ''sakazakii,'' are opportunistic human pathogens. ''Enterobacter cloacae'' A-11 and similar bacteria can be found on cucumber and radish seeds as well as peas, soybeans, sunflowers, and sweet corn seeds.<br />
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==Pathology==<br />
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[[Image:baby1.jpg|frame|left|A picture of a baby with a bottle. Before baby formula was routinely screened for ''Enterobacter'', many infants contracted bacterial infections due to this ''Enterobacter's'' ability to survive the heating prepartions of the powered formula. From [http://www.jkdds.com/html/baby_tooth_decay.html Jason S. Kasarsky.]]]<br />
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Some symptoms of ''Enterobacter'' infections include bacteremia, lower respiratory tract infections, skin infections, soft tissue infections, urinary tract infections, UTI, endocarditis, intraabdominal infections, septic arthritis, osteomyelitis, and ophthalmic infections. They are an opportunistic pathogens that rarely cause disease in otherwise healthy individuals. This bacterium's virulence seems to be due largely to an endotoxin that it produces. Nosocomial infections are the most frequent type of ''Enterobacter'' infections, but community-acquired infections are sometimes observed. The bacteria usually infects people who stay in the hospital, especially on the ICU, for long periods of time as well as people how have used many antimicrobial agents, have serious underlying conditions (eg: diabetes, malignancies, burns, mechanical ventilation, etc.), use foreign devices such as intravenous catheters, and immunosuppression.These infections can be contracted endogenously via colonization of the skin, gastrointestinal tract, or urinary tract or exogenously from the "ubiquitous nature of these bacteria" (Sinave). In many cases, the hands of personnel, intravenous solutions, endoscopes, blood products, devices for monitoring intra-arterial pressure, and stethoscopes have been deemed the source for the infection. (Sinave) One specific species of this bacteria, ''Enterobacter sakazakii'', is well-known for causing infections in infants who were fed milk-based powered infant formulas. The bacteria, which was called a "yellow pigmented ''Enterobacter cloacae''" until 1980, survives when the contaminated powered formula is heated and prepared. Since it has caused several outbreaks of infection in the past, baby formulas are now effectively screened for ''E. sakazakii'' before they are sold. The infections caused in infants are neonatal meningitis, sepsis, and necrotizing enterocolitis; the reported case-fatality rate varies from 40-80% among infants who contract this bacterial infection (Health Canada).<br />
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==References==<br />
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===General:===<br />
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* Health Canada. Office of Laboratory Securty. [http://www.hc-sc.gc.ca/pphb-dgspsp/msds-ftss/msds59e.html Material Safety Data Sheet - Infectious Substances: ''Enterobacter'' spp.]<br />
* Roberts, D. P., P. D. Dery, I. Yucel, and J. S. Buyer. 1999. "Importance of ''pfkA'' for rapid growth of ''Enterobacter cloacae'' during colonization of crop seeds." ''Applied and Environmental Microbiology'', vol. 66, no. 1. (87-91)<br />
* Anaesthetist: [http://www.anaesthetist.com/icu/infect/bacteria/gramneg/enterobacter.htm Enterobacter]<br />
* Hoffmann, Harald and Andreas Roggenkamp. 2003. "Population genetics of the nomenspecies ''Enterobacter cloacae''." ''Applied and Environmental Microbiology'', vol. 69, no. 9. American Society for Microbiology. (5306-5318)<br />
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===Pathology:===<br />
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* Sinave, Christian P. Emedicine: [http://www.emedicine.com/med/topic678.htm Enterobacter Infections]<br />
* Health Canada. Food Program: Health Professional Advisory. ''[http://www.hc-sc.gc.ca/food-aliment/mh-dm/mhe-dme/e_enterobacter_sakazakii.html Enterobacter sakazakii]'' [http://www.hc-sc.gc.ca/food-aliment/mh-dm/mhe-dme/e_enterobacter_sakazakii.html infection and powered infant formulas.]</div>Tashiror