This photograph depicts the colonial morphology displayed by Gram-negative Yersinia pestis bacteria, which was grown on a medium of sheep's blood agar (SBA), for a 48 hour time period, at a temperature of 37�C. See PHIL 12491, for anadditional view revealing the tenacious nature of these colonies when touched by an inoculation loop, and their tendency to form 'stringy', sticky strands.
CDC/ Amanda Moore, MT; Todd Parker, PhD; Audra Marsh
December 4, 2012
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