Biochemical Test of Campylobacter jejuni

Biochemical Test of Campylobacter jejuni

Basic Characteristics Properties (Campylobacter jejuni)
Capsule Capsulated
Catalase Positive (+ve)
Flagella Flagellated
Gram Staining Negative (-ve)
Growth at 25°C Negative (-ve)
Growth at 37°C Positive (+ve)
Growth at 42°C Positive (+ve)
Growth on MacConkey Agar Positive (+ve)
H2S Negative (-ve)
Hemolysis Non-Hemolytic
KOH Positive (+ve)
Motility Motile
Nitrate Reduction Positive (+ve)
Nitrite Reduction Negative (-ve)
OF (Oxidative-Fermentative) Non-Fermentative
Oxidase Positive (+ve)
Resistance to cephalothin Positive (+ve)
Resistance to nalidixic acid Negative (-ve)
Shape Comma/S-Shaped/Coccoid/Rods
Spore Non-Sporing
Urease Negative (-ve)

Fermentation of

DNase Negative (-ve)
Glucose Negative (-ve)

Enzymatic Reactions (Hydrolysis)

Alkaline Phosphatase Variable
Arylsulphatase Negative (-ve)
Hippurate Positive (+ve)
Indoxyl Acetate Positive (+ve)
Tween 40 Positive (+ve)
Tween 60 Positive (+ve)
Tween 80 Negative (-ve)

Scanning electron micrograph of the spiral shape and flagella of Campylobacter jejuni

Figure: Scanning electron micrograph of the spiral shape and flagella of Campylobacter jejuni

About Author

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Sagar Aryal

Sagar Aryal is a microbiologist and a scientific blogger. He attended St. Xavier’s College, Maitighar, Kathmandu, Nepal, to complete his Master of Science in Microbiology. He worked as a Lecturer at St. Xavier’s College, Maitighar, Kathmandu, Nepal, from Feb 2015 to June 2019. After teaching microbiology for more than four years, he joined the Central Department of Microbiology, Tribhuvan University, to pursue his Ph.D. in collaboration with Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Saarbrucken, Germany. He is interested in research on actinobacteria, myxobacteria, and natural products. He has published more than 15 research articles and book chapters in international journals and well-renowned publishers.

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