Microbiology
Agglutinin
Substance (antibody) capable of producing agglutination of an agglutinogen (antigen).
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Category: Microbiology
Microbiology
Agglutinogen
Substances (antigens) which induce the production of agglutinins.
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Microbiology
Autoclave
Device utilising pressurized steam for sterilisation of laboratory equipments and other objects.
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Microbiology
Hemolysin
Substances (exotoxins produced by bacteria or antibodies) which cause lysis of RBCs (hemolysis).
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Microbiology
Pneumoccus – cultural characteristics
Pneumoccus bacteria demonstrating capsular swelling using quellung reaction Pneumoccus grow only in enriched media. (blood agar, glucose broth) aerobes, facultative anaerobes optimal temperature – 37C (25-42C) optimal pH
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Microbiology
Carrom coin appearance
Appearance of pneumococcus colonies after prolonged incubation in blood agar – with concentric rings and central umbonation – also called Draughtsman appearance
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Microbiology
Draughtsman appearance
Appearance of pneumococcus colonies after prolonged incubation in blood agar – with concentric rings and central umbonation – also called carrom coin appearance.
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Microbiology
Streptococcus
Streptococci are gram positive bacteria that are arranged in chains. Cell division takes place along a single axis without separation of daughter cells. Hence they get arranged in
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