Gram-negative bacteria: Difference between revisions

Revision as of 16:43, 25 January 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)

Lactose		Oxidase	Urease
fermenter	fast			Escherichia coli, Klebsiella, Enterobacter
fermenter	slow			Citrobacter, Serratia
non-fermenter		positive		Pseudomonas, Burkholderia
		negative	positive	Helicobacter pylori, Proteus mirabilis
		negative	negative	Campylobacter, Shigella, Salmonella, Yersinia

@@ Line 14: / Line 14: @@
 |fast
 | colspan="2" rowspan="2" |
-|[[Escherichia coli]], [[Klebsiella species]], [[Enterobacter species]]
+|[[Escherichia coli]], [[Klebsiella]], [[Enterobacter]]
 |-
 |slow
-|[[Citrobacter species]], [[Serratia species]]
+|[[Citrobacter]], [[Serratia]]
 |-
 | colspan="2" rowspan="3" |non-fermenter
 |positive
 |
-|[[Pseudomonas species]], [[Burkholderia species]]
+|[[Pseudomonas]], [[Burkholderia]]
 |-
 |negative
@@ Line 30: / Line 30: @@
 |negative
 |negative
-|[[Campylobacter species]], [[Shigella species]], [[Salmonella species]], [[Yersinia species]]
+|[[Campylobacter]], [[Shigella]], [[Salmonella]], [[Yersinia]]
 |}
 === Cocci ===
-*[[Neisseria species]]
+*[[Neisseria]]
 **[[Neisseria meningitidis]]
 **[[Neisseria gonorrheae]]
@@ Line 41: / Line 41: @@
 === Coccobacilli ===
-*[[Haemophilus species]] (''S. aureus'' satellite colonies)
+*[[Haemophilus]] (''S. aureus'' satellite colonies)
-*[[Pasteurella species]]
+*[[Pasteurella]]
-*[[Brucella species]]
+*[[Brucella]]
 *[[Bordatella pertussis]]
 *[[Francisella tularensis]]
-*[[Legionella species]]
+*[[Legionella]]
 === Anaerobes ===
-*[[Bacteroides species]]
+*[[Bacteroides]]
-*[[Fusobacterium species]]
+*[[Fusobacterium]]
 [[Category:Gram-negative bacteria]]