gram : negative rod shape motile oxidase :negative catalse :positive citrate : positive indole : negative urease :negative ferments lactose with gas production during a 48-hour incubation ...

Gram-negative Aerobic motile positive catalase test positive oxidase test. fruity odor absence of gas formation from glucose indole negative methyl red negative citrate positive. secretion ...

Serotyping of Streptococcus called Lancefield grouping, and it classify streptococcus bacteria based on antigens found on their cell walls.

PYRase Test is colorimetric enzymatic test for detection of pyrrolidonyl peptidase (PYRase), an enzyme produced by all common species of Enterococci and 98% strains of S. pyogenes. ...

Purpose The oxidase test is a biochemical reaction that assays for the presence of cytochrome oxidase, an enzyme sometimes called indophenol oxidase. In the presence of an organism ...

Principle The test organism is inoculated into tryptone broth, a rich source of the amino acid tryptophan. Indole positive bacteria such as Escherichia coli produce tryptophanase, ...

The best way to memorize urease positive organisms is using the pnemonic ‘PUNCH’ P-Proteus U-Ureaplasma N-Nocardia C-Cryptococcus H-Helicobacter

 

Some bacteria produce hemolysins, exotoxins that cause red blood cells (RBC’s) to burst open (hemolyse).When these bacteria are cultured on blood agar, this hemolysis is visible ...

Lactose-fermenter and produces pink mucoid colonies

Staphylococcus saprophyticus is a Gram-positive, coagulase-negative bacterium. S. Saprophyticus is a common cause of community-acquired urinary tract infections. S. saprophyticus ...

Coagulase is an enzyme that catalyzes the formation of a fibrin clot in plasma. Obvious clumping of the bacteria indicates the bacteria produces bound caogulase. Staphylococcus aureus ...