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Lab 12: Isolation and Identification of Enterobacteriaceae and Pseudomonas, Part 1

Lab 12: Isolation and Identification of Enterobacteriaceae and Pseudomonas, Part 1

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Page ID: 3451

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DISCUSSION

Labs 12 and 13 deal with opportunistic and pathogenic fermentative Gram-negative bacilli that are members of the bacterial family Enterobactereaceae, as well as nonfermentative Gram-negative bacilli such as Pseudomonas and Acinetobacter.

A. ENTEROBACTERIACEAE: THE FERMENTATIVE, GRAM-NEGATIVE, ENTERIC BACILLI

Bacteria belonging to the family Enterobacteriaceae are the most commonly encountered organisms isolated from clinical specimens. The Enterobacteriaceae is a large diverse family of bacteria belonging to the order Enterobacteriales in the class Gammaproteobacter of the phylum Proteobacter. Medically important members of this family are commonly referred to as fermentative, Gram-negative, enteric bacilli, because they are Gram-negative rods that can ferment sugars. Many are normal flora of the intestinal tract of humans and animals while others infect the intestinal tract. Members of this family have the following characteristics in common:

Contributors and Attributions

Dr. Gary Kaiser (COMMUNITY COLLEGE OF BALTIMORE COUNTY, CATONSVILLE CAMPUS)