Mycobacterium marinum
It is a non tuberculous mycobacteria belonging to the group ‘photochromogens’ and is the causative factor for swimming pool granuloma. It is similar to M.kansasii.
Differentiating features of M.marinum from M.kansasii
- Poor growth at 37C
- nitratase negative
- pyrazinamide hydrolase positive
- L- fucosidase positive
