Identification of Aerobic Gram-Negative Bacteria

Authored by: Donna J. Kohlerschmidt , Lisa A. Mingle , Nellie B. Dumas

Practical Handbook of Microbiology

Print publication date:  June  2015
Online publication date:  June  2015

Print ISBN: 9781466587397
eBook ISBN: 9781466587403
Adobe ISBN:


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Aerobic gram-negative bacteria are ubiquitous. Many are found throughout the environment and distributed worldwide. Others are established as normal flora in human and animal mucosa, intestinal tract, and skin. Many of these bacteria are typically harmless, and several are even beneficial. Others account for a large percentage of foodborne illness, and some have been identified as potential weapons of bioterrorism. The identification of these organisms is necessary in many circumstances. The clinical microbiologist identifying the pathogen responsible for the severe, bloody diarrhea of a hospitalized young child; the environmental laboratorian identifying the bacterial contaminant that forced a recall of a commercial product; and the researcher identifying and characterizing the bacteria that are degrading chemical pollutants in a river all find themselves faced with the task of identifying aerobic gram-negative bacteria. This task can be accomplished using a variety of methods. It often involves a combination of conventional phenotypic tests based on biochemical reactions, commercial kits or systems, and/or molecular analysis.

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