What two bacteria produce swarming colonies on nonselective media such as sheep blood agar (SBA)?
A) Enterobacter aerogenes and Serratia marcescens
B) Proteus pannier and Klebsiella pneumoniae
C) Proteus vulgaris and Proteus mirabilis
D) Proteus mirabilis and Escherichia coli

Question

Quizplus · Accepted Answer

P.mirabilis and P.vulgaris are easily identified in the clinical laboratory because of their characteristic colony morphology.Both species produce swarming colonies on nonselective media,such as SBA.This characteristic swarming is a result of a tightly regulated cycle of differentiation from standard vegetative cells (swimmers)to hyperflagellated,elongated,polyphonic cells (warmers)capable of coordinated surface movement.

What Two Bacteria Produce Swarming Colonies on Nonselective Media Such