Table 2 Phenotypic characteristics of M. avium subsp. avium
Items | Phenotypic characteristics of M. avium subsp. avium | |||||
|---|---|---|---|---|---|---|
Colonies on Middlebrook 7H10 agar | Small, round, creamy colored, and sticky colonies | |||||
Microscopical examination using Ziehl-Neelsen staining | Non-sporulated, and non-motile acid fast bacilli | |||||
Biochemical characteristics | Test | Niacin production test | Nitrate reduction test | Tween-80 hydrolysis assay | Catalase test at 68 °C | Arylsulfatase Test |
Observation | Clear liquid | No color change | No color change | No bubble was produced | Pink color produced within few seconds after adding sodium carbonate | |
Results | -ve | -ve | -ve | -ve | +ve | |