Gram-negative bacteria: Difference between revisions
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|fast |
|fast |
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| colspan="2" rowspan="2" | |
| colspan="2" rowspan="2" | |
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− | |[[Escherichia coli]], [[Klebsiella |
+ | |[[Escherichia coli]], [[Klebsiella]], [[Enterobacter]] |
|- |
|- |
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|slow |
|slow |
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− | |[[Citrobacter |
+ | |[[Citrobacter]], [[Serratia]] |
|- |
|- |
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| colspan="2" rowspan="3" |non-fermenter |
| colspan="2" rowspan="3" |non-fermenter |
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|positive |
|positive |
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| |
| |
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− | |[[Pseudomonas |
+ | |[[Pseudomonas]], [[Burkholderia]] |
|- |
|- |
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|negative |
|negative |
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|negative |
|negative |
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|negative |
|negative |
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− | |[[Campylobacter |
+ | |[[Campylobacter]], [[Shigella]], [[Salmonella]], [[Yersinia]] |
|} |
|} |
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=== Cocci === |
=== Cocci === |
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− | *[[Neisseria |
+ | *[[Neisseria]] |
**[[Neisseria meningitidis]] |
**[[Neisseria meningitidis]] |
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**[[Neisseria gonorrheae]] |
**[[Neisseria gonorrheae]] |
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=== Coccobacilli === |
=== Coccobacilli === |
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− | *[[Haemophilus |
+ | *[[Haemophilus]] (''S. aureus'' satellite colonies) |
− | *[[Pasteurella |
+ | *[[Pasteurella]] |
− | *[[Brucella |
+ | *[[Brucella]] |
− | *[[ |
+ | *[[Bordetella pertussis]] |
*[[Francisella tularensis]] |
*[[Francisella tularensis]] |
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− | *[[Legionella |
+ | *[[Legionella]] |
=== Anaerobes === |
=== Anaerobes === |
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− | *[[Bacteroides |
+ | *[[Bacteroides]] |
− | *[[Fusobacterium |
+ | *[[Fusobacterium]] |
[[Category:Gram-negative bacteria]] |
[[Category:Gram-negative bacteria]] |
Latest revision as of 14:46, 17 February 2022
- Bacteria that have a thin peptidoglycan layer in the cell wall and therefore stain pink or red on Gram stain
- Outer membrane contains lipopolysaccharide (LPS, which consists of lipid A, core polysaccharide, and O antigen)
Organisms
Bacilli
Lactose | Oxidase | Urease | ||
---|---|---|---|---|
fermenter | fast | Escherichia coli, Klebsiella, Enterobacter | ||
slow | Citrobacter, Serratia | |||
non-fermenter | positive | Pseudomonas, Burkholderia | ||
negative | positive | Helicobacter pylori, Proteus mirabilis | ||
negative | negative | Campylobacter, Shigella, Salmonella, Yersinia |
Cocci
Coccobacilli
- Haemophilus (S. aureus satellite colonies)
- Pasteurella
- Brucella
- Bordetella pertussis
- Francisella tularensis
- Legionella