scotochromogenic


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sco·to·chro·mo·gen·ic

(skō'tō-krō'mō-jen'ik)
Refers to microorganisms (e.g., Mycobacterium scrofulaceum) that produce pigment in the absence of light. Pigment may darken or be enhanced when colonies are exposed to light.

scotochromogenic

pertaining to scotochromogen.
References in periodicals archive ?
yongonense noted that it has a distinct rpoB sequence (1), identical to that of a distantly related scotochromogenic species, M.
A scotochromogenic, rapidly growing strain was isolated in 2012 from respiratory specimens of an HIV-positive 44-year-old Iranian man with chronic pulmonary disease.
a rapidly-growing scotochromogenic species isolated from clinical specimens on three different continents.
To the Editor: Mycobacterium shigaense is a novel, slow-growing, scotochromogenic mycobacterium (1), initially reported in 2012 as an opportunistic pathogen isolated from skin biopsy samples from a patient with a history of Hodgkin disease and severe cellular immunodeficiency.
avium DNA was negative), and routine cultures for mycobacteria yielded unidentified scotochromogenic mycobacterium.
A new species of rapidly growing scotochromogenic mycobacteria, Mycobacterium neoaurum.
Data from an extended panel of biochemical and cultural tests for conventional identification have not been reported; however, the appearance of a scotochromogenic pale yellow pigment with growth at 45[degrees]C and a negative 3-day arylsulfatase test are in full agreement with our present and previous findings (7).