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Identification of pigmented gram negative bacilli. 1975

G L Gilardi

Identification of chromogenic gram-negative bacilli on the basis of pigment production as a taxonomic criterion is unreliable. Because of this, a wide range of morphological, cultural and biochemical characteristics of bacteria in this category was examined. The salient features found to be useful for identification of pigmented bacilli, including Flavobacterium, Xanthomonas, the fluorescent pseudomonads, Pseudomonas cepacia, P. stutzeri, P. maltophilia, P. putrefaciens, and Group VE, are reviewed.

UI MeSH Term Description Entries
D006088 Gram-Negative Aerobic Bacteria A large group of aerobic bacteria which show up as pink (negative) when treated by the gram-staining method. This is because the cell walls of gram-negative bacteria are low in peptidoglycan and thus have low affinity for violet stain and high affinity for the pink dye safranine. Achromatiaceae,Achromatium,Achromobacteriaceae,Gram Negative Aerobic Bacteria

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