[Microbiology] Atlas of Aerobic Gram-Positive Bacilli

Aerobic Gram-Positive Bacilli, Atlas of Aerobic Gram-Positive Bacilli, atlas of microbiology, atlas in medical, tuyenlab.net

Schematic diagram for the identification of gram-positive bacteria.
Fig 1. Schematic diagram for the identification of gram-positive bacteria.


Fig 2.  A, Microscopic Gram stain of diphtheroid. B, Microscopic Loeffler
methylene blue stain of Corynebacterium spp.

Corynebacterium diphtheriae growing on sheep blood agar.
Fig 3.  Corynebacterium diphtheriae growing on
sheep blood agar.

A schematic diagram of the presumptive identification of Corynebacterium diphtheriae. CTBA, Cystine-tellurite blood agar.
Fig 4.  A schematic diagram of the presumptive identification of
Corynebacterium diphtheriae. CTBA, Cystine-tellurite blood agar.

Elek test for toxin-producing stains of Corynebacterium diphtheriae.
Fig 5.  Elek test for toxin-producing stains of Corynebacterium diphtheriae.
1, Positive control; 2, unknown (toxigenic); 3, negative control; 4, unknown
(nontoxigenic).

Fig 6.  Gram stain of Listeria monocytogenes in the blood.

Gram stain of Listeria monocytogenes from a culture.
Fig 7.  Gram stain of Listeria monocytogenes from a culture.

A, β-Hemolysis: Listeria on sheep blood agar (SBA) plate. Listeria monocytogenes growing on SBA with colony morphology similar to that of group B β-hemolytic streptococci. B, Conventional CAMP test with L. monocytogenes showing “block” hemolysis at the junction with the Staphylococcus aureus inoculum.
Fig 8.  A, β-Hemolysis: Listeria on sheep blood agar (SBA) plate. Listeria
monocytogenes
growing on SBA with colony morphology similar to that of group B
β-hemolytic streptococci. B, Conventional CAMP test with L. monocytogenes showing
“block” hemolysis at the junction with the Staphylococcus aureus inoculum.

Fig 9.  Umbrella motility: Listeria. Motility test for Listeria monocytogenes showing the typical “umbrella” pattern, which occurs toward the surface of the medium when this organism is incubated at room temperature. Tube on left is positive; tube on right is negative control.

A, Gram stain of Erysipelothrix rhusiopathiae at 24 hours. B, Gram stain of E. rhusiopathiae at 72 hours showing the tendency to form long filaments, which are easily decolorized.
Fig 10.  A, Gram stain of Erysipelothrix rhusiopathiae at 24 hours. B, Gram stain
of E. rhusiopathiae at 72 hours showing the tendency to form long filaments, which are
easily decolorized.

Fig 11.  Comparison of colony morphology of
Listeria (A) and Erysipelothrix (B) growing on sheep blood
agar after 24 hours of incubation.

Arcanobacterium haemolyticum growing on sheep blood agar.
Fig 12.  Arcanobacterium haemolyticum growing on sheep blood agar.

Gram stain of Arcanobacterium haemolyticum from a colony.
Fig 13.  Gram stain of Arcanobacterium haemolyticum from a colony.

A, Gram stain of Nocardia sp. demonstrating irregular staining. B, Acid-fast stain of Nocardia showing partially acid-fast appearance.
Fig 14.  A, Gram stain of Nocardia sp. demonstrating
irregular staining. B, Acid-fast stain of Nocardia showing
partially acid-fast appearance.

Appearance of sulfur granule collected from draining sinus tracts. These granules contain masses of filamentous organisms with pus materials.
Fig 15.  Appearance of sulfur granule collected from
draining sinus tracts. These granules contain masses of
filamentous organisms with pus materials.

Fig 16.  Colony morphology of Nocardia sp. on chocolate agar.

Gram stain of Bacillus sp.
Fig 17.  Gram stain of Bacillus sp.

Spore stain of Bacillus sp. Vegetative cells are red; spores are green.
Fig 18.  Spore stain of Bacillus sp. Vegetative cells
are red; spores are green.

Bacillus cereus on sheep blood agar.
Fig 19.  Bacillus cereus on sheep blood agar.

This is a part of the book : Textbook of Diagnostic Microbiology 4th edition 2011 of authors: Connie R. Mahon, Donald C. Lehman and George Manuselis. If you want to view the full content of the book and support author. Please buy it here: http://amzn.to/2ctxo02


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Atlas for Medical: [Microbiology] Atlas of Aerobic Gram-Positive Bacilli
[Microbiology] Atlas of Aerobic Gram-Positive Bacilli
Aerobic Gram-Positive Bacilli, Atlas of Aerobic Gram-Positive Bacilli, atlas of microbiology, atlas in medical, tuyenlab.net
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