Listeria monocytogenes colony morphology on blood agar

Gram-Positive and Gram-Negative Bacteria: Introduction, Differences, and Related Footage

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Differences between Gram Positive and Gram Negative Bacteria: Introduction, and Related Footages

Introduction of Gram-Positive and Gram-Negative Bacteria ‘Gram-Positive Bacilli (GPB)‘ is also called Gram-Positive Rods (GPR) bacteria which retain crystal violet dye and stain blue or purple on Gram’s staining. The most common medically important bacteria of GPR are Mycobacterium tuberculosis, Mycobacterium leprae, Listeria monocytogenes, Nocardia asteroides, Actinomyces israelii, Bacillus anthracis, Bacillus cereus, Bifidobacterium species, Corynebacterium …

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Bile Esculin Test: Introduction, Principle, Test Requirements, Procedure, Result Interpretation, Uses, Limitation, Keynotes, and Related Footages

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Bile Esculin Test: Introduction, Principle, Test Requirements, Procedure, Result Interpretation, Uses, Limitation, Keynotes, and Related Footages

Introduction of Bile Esculin test Bile esculin test is widely used to differentiate Enterococci from streptococci, other than streptococcus bovis as well as Yersinia enterocolitica from food and animal feeding stuff and Listeria monocytogenes which are bile tolerant and can hydrolyze esculin to esculetin, it reacts …

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Gram-Positive Bacteria Identification: Introduction, List of Common Bacteria, and Identification Keys

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Staphylococcus aureus colony characteristics on Blood Agar-Golden yellow colony

Introduction of Gram-Positive Bacteria Identification Identification of Gram-positive bacteria is a little bit harder than Gram-negative bacteria since the most common bacterial etiological agents are Gram-negative bacteria and the vendors or suppliers are directly involved in supplying common tests reagents and test kit accessories. Due …

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