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PROKARYOTAE
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Bacterial Cultural Characteristics
Actinobacillus pleuropneumoniae  
dependent of NAD-producing
Staphylococcus aureus (yellow line)
Acinetobacter baumannii colonies on
sheep blood agar
Aerococcus viridans colonies on sheep
blood agar
Aeromonas hydrophila hemolytic colonies
on sheep blood agar
Alcaligenes faecalis colonies on sheep
blood agar
Avibacterium gallinarum colonies on
sheep blood agar
Azotobacter chroococcum colonies on
Ashby medium and brown-pigmentation
Agar pitting colonies (Bacillus spp.)
Bacillus amyloliquefaciens colonies on
Chapman agar
Bacillus atrophaeus brown-black colonies
on Mueller-Hinton agar
Bacillus anthracis colonies on sheep blood
agar
Bacillus anthracis culture on solid and
liquid media
Bacillus firmus colonies on sheep blood
agar
Bacillus licheniformis on sheep blood agar
Bacillus megaterium colonies
Bacillus mycoides specific colony shape
Bacillus pumilus on sheep blood agar
Bacillus subtilis culture on solid and liquid
media
Bacillus subtilis subsp. spizizenii
colonies on sheep blood agar
Bacillus thuringiensis on sheep blood agar
Bacteriophage - infected culture (spots &
plaques no/partial growth)
Bordetella bronchiseptica on blood agar
(left) and MacConkey agar(rigth)
Bordetella bronchiseptica on solid medium
Campylobacter jejuni
Citricoccus spp. yellow colonies on
Mueller-Hinton agar
Citrobacter braakii colonies on sheep
blood agar
Clostridium perfringens  producing double
hemolysis on sheep blood agar
Clostridium spp. on Sulphite agar
Clostridium spp. gas production & turbidity
in Liver Broth medium  (positive-left and
negative - right)
Comamonas kerstersii (C. terrigena DNA
group 3) colonies on sheep blood agar
Corynebacterium amycolatum colonies on
sheep blood agar
Dendritiform and galaxy-shape colonies of
Bacillus spp. Mixed culture.
Enterobacter cloacae colonies on sheep
blood agar
Enterococcus faecalis colonies on sheep
blood agar
Enterococcus faecium on Bile-esculin agar
(dark brown halos)
Enterococcus faecium colonies on sheep
blood agar
Enterococcus faecium deep red colonies
on Slanetz Bartley agar
Enterococcus gallinarum colonies on
sheep blood agar
Erysipelothrix rhusiopathiae colonies after
48h incubation
Erysipelothrix rhusiopathiae after 1 week
anaerobic incubation
Escherichia coli beta haemolysis
on sheep blood agar
Escherichia coli on GEAM / Levine medium
(metallic look)
Escherichia coli on Rambach agar
(blue-green colonies)
Fusobacterium necrophorum on sheep
blood agar
Fusobacterium necrophorum
in thioglycollate broth
Gallibacterium genomospecies 3 colonies
on MacConkey Agar (left) and Sheep Blood
Agar (right)
Gemella haemolysans, beta-haemolytic
colonies after 72h incubation
Granulicatella / Abiotrophia  adiacens
colonies, 24h-incubation
Geobacillus stearothermophilus colonies
on BHI agar
Helicobacter pylori colonies on sheep
blood agar
Hydrogen sulfide produced by Salmonella
on XLD agar (black)
Klebsiella pneumoniae (mucous, confluent
colonies)
Kocuria rosea pigment production on
Mueller Hinton agar
Kocuria varians colonies on
sheep blood agar
Lactobacillus casei
colonies on MRS agar
Lactobacillus fermentum
colonies on MRS agar
Lactobacillus paracasei
colonies on Sheep Blood Agar
Lactobacillus pentosus pinpoint colonies
on Sheep Blood Agar
Lactobacillus reuteri colonies on MRS agar
Lactobacillus_rhamnosus
colonies on MRS agar
Lactococcus lactis subsp. lactis on
sheep blood agar
Lactococcus garvieae on
sheep blood agar
Lactose-negative colonies on CLED medium
Lactose-negative colonies on Istrati-Meitert
medium
Lactose-positive colonies on Mac Conkey
medium
Lactose-positive colonies on CLED medium
Lysinibacillus sphaericus on sheep blood
agar
MacConkey agar: lactose+ (up), lactose- (left)
and lactose- but red pigmented
Serratia
colonies (right)
Micrococcus luteus yellow pigmented colonies
on Mueller-Hinton agar
Micrococcus spp. on solid medium
Moraxella cuniculi colonies on sheep blood agar
Moraxella lacunata colonies on sheep blood
agar
Morganella morganii beta haemolytic colonies
Mycobacterium avium broth culture
Mycobacterium bolletii broth culture
Mycobacterium bovis broth culture
Mycobacterium bovis growth on
Lowenstein-Jensen medium
Mycobacterium spp. colonies
on sheep blood agar
Mycoplasma agalactiae colonies (B&W)
Mycoplasma agalactiae colonies,
magnification x70
Mycoplasma agalactiae broth culture
(positive - left and negative - right)
Nocardia asteroides - surface growth only
Paenibacillus macerans spreading colonies on
sheep blood agar
Pasteurella (Mannheimia) haemolytica
colonies on sheep blood agar
Pasteurella multocida colonies on Sheep blood
agar
Pasteurella multocida rising and twisting
deposit  when shaked
Proteus mirabilis swarming
Proteus mirabilis swarming and Dienes effect
Pseudomonas aeruginosa, green, fluorescent,
diffusible pigment
Pseudomonas aeruginosa haemolysis on
Sheep blood agar
Pseudomonas aeruginosa on Milk agar
Pseudomonas (Chriseomonas) luteola on
Mueller-Hinton agar
Pseudomonas putida on Mueller-Hinton agar
Pseudomonas stutzeri on sheep blood agar
Raoultella terrigena on sheep blood agar
Salmonella spp. lactose-negative colonies on
MacConkey agar
Salmonella Gallinarum on MSRV medium
(non-motile)
Salmonella Enteritidis motility on MSRV medium
Salmonella Typhimurium colonies on sheep
blood agar
Serratia marcescens red-pigmented colonies
after 72h incubation
Serratia rubidaea on milk agar (prodigiosin
pigment production)
Staphylococcus colony outskirts on sheep
blood agar. Hyperzoom 200x
Staphylococcus aureus carotenoid pigment
production after 48h
Staphylococcus aureus
alpha- & beta-hemolysis
Staphylococcus aureus shiny black colonies on
Baird-Parker agar
Staphylococcus chromogenes colonies on
sheep blood agar
Staphylococcus epidermidis colonies on sheep
blood agar
Staphylococcus haemolyticus colonies on
sheep blood agar
Staphylococcus intermedius hemolytic colonies
on sheep blood agar
Staphylococcus lugdunensis narrow
haemolysis areas on sheep blood agar
Staphylococcus sciuri colonies on sheep blood
agar
Staphylococcus xylosus colonies on sheep
blood agar
Streptococci haemolysis: alpha haemolytic  
(right),  beta hemolytic (left), non-hemolytic
(down)
Streptococcus agalactiae on sheep blood agar
(alpha-hemolytic)
Streptococcus agalactiae on sheep blood agar
(beta-hemolytic)
Streptococcus canis, strong beta-hemolytic
colonies on sheep blood agar
Streptococcus constellatus  colonies on sheep
blood agar
Streptococcus cristatus pinpoint colonies on
sheep blood agar
S. dysgalactiae subsp. dysgalactiae
(alpha-haemolytic, left) and
subsp. equisimilis
(beta-haemolytic, right)
Streptococcus gordonii colonies on sheep
blood agar
Streptococcus mitis colonies on sheep blood
agar
Streptococcus mutans colonies on BHI agar
Streptococcus pluranimalium colonies on
sheep blood agar
Streptococcus porcorum colonies on sheep
blood agar
Streptococcus pyogenes colonies after 48h
incubation
Streptococcus uberis colonies on sheep blood
agar
Streptococcus sanguinis colonies on sheep
blood agar
Vibrio metschnikovii beta-hemolytic colonies
on sheep blood agar
Yersinia pseudotuberculosis colonies on
sheep blood agar