photochromogen

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• photochromogen — pho·to·chro·mo·gen .fōt ō krō mə jən n a microorganism esp. of the genus Mycobacterium (as M. kansasii) that has little or no pigment when grown in the dark but becomes highly pigmented when grown in light * * * pho·to·chro·mo·gen (fo″to… …   Medical dictionary

• Mycobacterium avium — Systematik Abteilung: Actinobacteria Klasse: Actinobacteria Ordnung: Actinomycetales Familie …   Deutsch Wikipedia

• Mycobacterium paratuberculosis — Mycobacterium avium Systematik Abteilung: Actinobacteria Klasse: Actinobacteria Ordnung: Actinomycetales …   Deutsch Wikipedia

• Mycobacterium kansasii — a slow growing, photochromogenic species that is the etiologic agent of a tuberculosis like disease and is often isolated from lung secretions or tubercles; the incidence of infection is sharply increased among immunocompromised persons. See also …   Medical dictionary

• Mycobacterium szulgai — a slow growing, pathogenic species that behaves as a scotochromogen at 37°C and as a photochromogen at 25°C. It is associated with pulmonary infections but may be found in nonpulmonary sites …   Medical dictionary