Biochemical Test of Haemophilus parainfluenzae

Biochemical Test of Haemophilus parainfluenzae

Biochemical Test of Haemophilus parainfluenzae Some of the characteristics are as follows: Basic Characteristics Properties (Haemophilus parainfluenzae) Capsule Variable Catalase Variable Gas Variable Gram Staining Gram-negative (-ve) H2S Positive (+ve) Hemolysis Negative (-ve) Indole Variable Motility Negative (-ve) Nitrate Reduction Positive (+ve) Nitrite Reduction Positive (+ve) Oxidase Positive (+ve) Shape Small, pleomorphic rods, usually with … Read moreBiochemical Test of Haemophilus parainfluenzae

Biochemical Test of Haemophilus influenzae

Biochemical Test of Haemophilus influenzae

Biochemical Test of Haemophilus influenzae Image Source: Manitoba Health and Fine Art America. Some of the characteristics are as follows: Basic Characteristics Properties (Haemophilus influenzae) Capsule Strain-dependent Catalase Positive (+ve) Flagella Negative (-ve) Gas Negative (-ve) Gram Staining Gram-negative H2S Negative (-ve) Hemolysis Negative (-ve) Indole Variable Motility Negative (-ve) Nitrate Reduction Positive (+ve) Nitrite … Read moreBiochemical Test of Haemophilus influenzae

Chocolate Agar

Chocolate Agar

Chocolate Agar Chocolate agar is essentially the same as blood agar except that during preparation the red blood cells are lysed when added to molten agar base. As a result, the cell lysis releases intracellular nutrients such as hemoglobin, hemin (“X” factor), and the coenzyme nicotinamide adenine dinucleotide (NAD or “V” factor) into the agar … Read moreChocolate Agar

X and V Factor Test for Haemophilus

X and V Factor Test for Haemophilus

Objective of X and V Factor Test To differentiate among Haemophilus species based on X and V factor required for growth. Principle of X and V Factor Test Haemophilus spp. have varying requirements for X and V growth factors. X factor indicates hemin and V factor indicates nicotinamide-adenine-dinucleotide, NAD. Consequently, the significant differences in growth factor … Read moreX and V Factor Test for Haemophilus