| a simple identification system for slowly growing mycobacteria. ii. identification of 25 strains isolated from surface water in valencia (spain). | based on a twenty-year experience, a simple identification system for slowly growing mycobacteria has been presented for clinical laboratories not specialized in this work. with this system (12 tests: tolerance to 0.02% picric acid, colony pigmentation in the dark, nitrate reduction, resistance to ethambutol, tween hydrolysis at 7 and 14 days, resistance to hydroxylamine, pas degradation, tolerance to p-nitrobenzoic acid, production of nicotinic acid and colony morphology) we have identified 15 ... | 1993 | 7976210 |