Actinomycetes: Difference between revisions

Latest revision as of 16:59, 25 January 2022

Background

Filamentous, mostly branching Gram-positive bacilli
The order Actinomycetales includes the aerobic actinomycetes
- Actinomycetales also include Corynebacterium (non-branching, non-acid-fast), Mycobacterium (non-branching, fully acid-fast), and Tropheryma whipplei
Environmental organisms found in soil
More commonly seen in fungal cultures
Typically not acid-fast, though some are partially acid-fast

Organisms

Genus	Infections
Partially acid-fast (cell wall contains mycolic acid)
Nocardia	mycetoma, lymphocutaneous infections, skin abscesses; in immunocompromised hosts, invasive pulmonary and disseminated infections
Rhodococcus	pulmonary infections, bacteremia, skin and wound infections, UTIs, endophthalmitis, peritonitis, CLABSI, abscess in prostate, spleen, thyroid, kidney, or brain, osteomyelitis; associated with horses
Gordonia	skin infections, chronic pulmonary disease, CLABSI, wound infections, bacteremia
Tsukamurella	peritonitis, CLABSI, skin infection
Not partially acid-fast (cell wall does not contain mycolic acid)
Streptomyces	commonly contaminant; inoculation skin infection including mycetoma
Actinomadura	inoculation skin infection including mycetoma
Dermatophilus	inoculation skin infection from insects or thorns
Nodardiopsis
Oerskovia

@@ Line 1: / Line 1: @@
-== Background ==
+==Background==
-* A genetically unrelated group of [[Has Gram stain::Gram-positive]] [[Has shape::bacillus|bacilli]]
-* Filamentous soil bacteria
-* More commonly seen in fungal cultures
-* Typically ''not'' acid-fast
+*Filamentous, mostly branching [[Stain::Gram-positive]] [[Shape::bacillus|bacilli]]
-== Organisms ==
+*The order Actinomycetales includes the aerobic actinomycetes
-* Partially acid-fast (cell wall contains mycolic acid)
+**Actinomycetales also include [[Corynebacterium]] (non-branching, non-acid-fast), [[Mycobacterium]] (non-branching, fully acid-fast), and [[Tropheryma whipplei]]
-** [[Nocardia species]]
+*Environmental organisms found in soil
-** [[Rhodococcus species]]: red colonies, associated with horses
+*More commonly seen in fungal cultures
-** [[Gordonia species]]
+*Typically ''not'' acid-fast, though some are partially acid-fast
-** [[Tsukamurella species]]
-** [[Corynebacterium species]]
-* Not partially acid-fast (cell wall does not contain mycolic acid)
-** [[Streptomyces species]]: common contaminant
-** [[Actinomadura species]]
-** [[Dermatophilus species]]
-** [[Nodardiopsis species]]
-** [[Oerskovia species]]
+==Organisms==
+{| class="wikitable"
+!Genus
+!Infections
+|-
+! colspan="2" |Partially acid-fast (cell wall contains mycolic acid)
+|-
+|[[Nocardia]]
+|[[mycetoma]], lymphocutaneous infections, skin abscesses; in immunocompromised hosts, invasive pulmonary and disseminated infections
+|-
+|[[Rhodococcus]]
+|pulmonary infections, bacteremia, skin and wound infections, UTIs, endophthalmitis, peritonitis, [[CLABSI]], [[abscess]] in prostate, spleen, thyroid, kidney, or brain, osteomyelitis; associated with horses
+|-
+|[[Gordonia]]
+|skin infections, chronic pulmonary disease, [[CLABSI]], wound infections, bacteremia
+|-
+|[[Tsukamurella]]
+|peritonitis, [[CLABSI]], skin infection
+|-
+! colspan="2" |Not partially acid-fast (cell wall does not contain mycolic acid)
+|-
+|[[Streptomyces]]
+|commonly contaminant; inoculation skin infection including [[mycetoma]]
+|-
+|[[Actinomadura]]
+|inoculation skin infection including [[mycetoma]]
+|-
+|[[Dermatophilus]]
+|inoculation skin infection from insects or thorns
+|-
+|[[Nodardiopsis]]
+|
+|-
+|[[Oerskovia]]
+|
+|}<br />
 [[Category:Gram-positive bacilli]]
+[[Category:Infectious diseases]]