a microorganism whose pigmentation develops as a result of exposure to light. adj., adj photochromogen´ic.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
photochromogen(fō-tō-krō′mō-jĕn) [″ + chroma, color, + gennan, to produce]
Certain microorganisms in which a pigment develops when it is grown in the presence of light, such as Mycobacterium kansasii.
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