TABLE 3.
Biochemical characteristics of lipophilic Corynebacterium spp.a
| Organism | Fermentation (F)/oxidation (O) | Nitrate reduction | Urea hydrolysis | Esculin hydrolysis | Pyrazina-midase activity | Alkaline phosphatase activity | Acid production from: |
CAMP reaction | Other characteristics | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Glucose | Maltose | Sucrose | Mannitol | Xylose | |||||||||
| C. resistens | F | − | − | − | − | + | + | − | − | − | − | − | Slow growing in anaerobic conditions |
| C. accolens | F | + | − | − | V | − | + | − | V | V | − | − | |
| C. afermentans subsp. lipophilum | O | − | − | − | + | + | − | − | − | − | − | V | |
| C. bovis | O | − | − | − | V | + | + | − | − | − | − | − | β-Galactosidase positive |
| C. diphtheriae biotype intermedius | F | + | − | − | − | − | + | + | − | − | − | − | |
| C. jeikeium | O | − | − | − | + | + | + | V | − | − | − | − | Fructose negative, no growth anaerobically |
| C. kroppenstedtii | F | − | − | + | + | − | + | V | − | − | − | − | |
| C. lipophiloflavum | O | − | − | − | + | + | − | − | − | − | − | − | Yellow |
| C. macginleyi | F | + | − | − | − | + | + | − | + | V | − | − | |
| C. urealyticum | O | − | + | − | + | V | − | − | − | − | − | − | |
| CDC group F-1 | F | V | + | − | + | − | + | + | + | − | − | − | |
| CDC group G | F | V | − | − | + | + | + | V | V | − | − | − | Fructose positive, growth anaerobically |
a
Modified from reference 7 with permission of the publisher. Symbols −, negative reaction; +, positive reaction; V, variable reaction.