showing partially acid-fast appearance RHODOCOCCUS, GORDONIA AND TSUKAMURELLA Flashcards
Aerobic, catalase-positive, branching,
filamentous, Gram-positive bacteria that can
fragment into rods and cocci
RHODOCOCCUS, GORDONIA AND
TSUKAMURELLA
Skin infections,
pneumonia, peritonitis, catheter-associated
sepsis
Infection and disease realted to RHODOCOCCUS, GORDONIA AND
TSUKAMURELLA
- Primarily acquired through inhalation
- Grow on most of the non-selective media for
bacterial, mycobacterial and fungal isolation
RHODOCOCCUS, GORDONIA AND
TSUKAMURELLA
- Isolated in soil, fresh and marine water and
organic matte
RHODOCOCCUS, GORDONIA AND
TSUKAMURELLA
- Non-motile and
partially acid-fast and
is composed of
mycolic acid with
longer carbon chains - Can persist and
replicate within
macrophages
- Non-motile and
partially acid-fast and
is composed of
mycolic acid with
longer carbon chains - Can persist and
replicate within
macrophages
RHODOCOCCUS EQUI
Actinomadura madurae and A. pelletier
species of Actinomadura madurae and A. pelletier
- Fungal wound infection that is known as eumycetoma.
- Most common form of eumycetoma is known as mycetoma pedis → Madura foot
- Acquired through respiratory route and exposure
to infected animals
RHODOCOCCUS EQUI
Coccobacilli with a ”zigzag pattern”
and a filamentous form
Microscopy of RHODOCOCCUS EQUI
- Genus varies from Gram
positive to Gram
variable rods. - Partially acid-fast, non-motile and catalase
positive
GORDONIA
Smooth and slimy with irregular edges;
but may appear as dry or rough; and exhibit the
presence of mycelia
Culture appearance in Gordonia
- Genus are Gram positive and shaped like long
rods that fragments into three parts. - Members are Slightly acid-fast when the
Kinyoun method is used
Tsukamurella
Colonies are circular with rhizoid
edges; has no aerial hyphae ad exhibit white or
orange pigmentation.
Culture appearance of Tsukamurella