Abstract
Chan, E. C. S. (University of New Brunswick, Fredericton, New Brunswick, Canada). Morphological aberration of Arthrobacter globiformis cells due to biotin deficiency. J. Bacteriol. 87:641–651. 1964.—Morphological aberration of Arthrobacter globiformis strain 425 was shown to occur during growth in a chemically defined medium without added biotin. Such aberrant cells could revert back to normal coccoid forms upon inoculation into fresh medium supplemented with the vitamin. This abnormal cellular development occurred even when there was good growth (turbidity) or increase in total cell mass. Light photomicrographs of negative and cell-wall stains of the organism at different times of the morphological growth cycle are presented in support of these observations. The relationship between cellular aberration and the biochemical role of biotin is briefly discussed.
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