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Nonphotoreactive; pertains to lack of pigment production when colonies are exposed to light.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
In screening, some lipoproteins were dissociated to water and oxygen by actions of cholesterol esterase/ oxidase and catalase to form a nonchromogenic product in step 1.
Cultures in liquid and solid media grew a nonchromogenic mycobacterium from sputum and stool samples; results were negative for urine samples.
A bronchoalveolar lavage was performed; samples yielded in culture Pseudomonas aeruginosa and a nonchromogenic mycobacterium.
All isolates yielded smooth to greasy domed nonchromogenic colonies in culture (online Technical Appendix Figure,
The colonies were nonchromogenic, smooth to mucoid, and off-white to cream on Middlebrook 7HI0 and trypticase soy agar.