Canadian Medical Guide > Organisms > Bacteria > Gram-Negative Bacteria > Gram-Negative Aerobic Bacteria Terms and Definitions




Gram-Negative Aerobic Bacteria

Medical Definition: 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.
Guide Notes: GEN: avoid; prefer specifics; do not use as a routine coord for a gram-negative aerobic bact; infection: coord IM with GRAM-NEGATIVE BACTERIAL INFECTIONS (IM); DF: GRAM NEG AEROBIC BACT
Also Called: Achromatiaceae,Achromatium,Achromobacteriaceae
Previously Indexed: Bacteria (1966-1975)
Gram-Negative Aerobic Bacteria Categories.
Canadian Medical Guide Definition Caulobacter - A genus of gram-negative, aerobic, rod- or vibroid-shaped or fusiform bacteria that commonly produce a stalk. They are found in fresh water and soil and divide by binary transverse fission.
Canadian Medical Guide Definition Gallionellaceae - A family of gram-negative bacteria in the order Nitrosomonadales, class BETAPROTEOBACTERIA. It contains a single genus Gallionella.
Canadian Medical Guide Definition Gram-Negative Aerobic Rods and Cocci - A group of gram-negative bacteria consisting of rod- and coccus-shaped cells. They are both aerobic (able to grow under an air atmosphere) and microaerophilic (grow better in low concentrations of oxygen) under nitrogen-fixing conditions but, when supplied with a source of fixed nitrogen, they grow as aerobes.
Canadian Medical Guide Definition Gram-Negative Chemolithotrophic Bacteria - A large group of bacteria including those which oxidize ammonia or nitrite, metabolize sulfur and sulfur compounds, or deposit iron and/or manganese oxides.
Canadian Medical Guide Definition Thiotrichaceae - A family of colorless sulfur bacteria in the order Thiotrichales, class GAMMAPROTEOBACTERIA.
Canadian Medical Guide Definition Vitreoscilla - A genus of gram-negative, aerobic or microaerophilic, colorless filaments. It is nonfruiting, motile by gliding, and found in freshwater sediments and cow dung. One species (V. stercoraria) is considered morphologically to be a streptobacillus. That species is strictly aerobic and produces a homodimeric bacterial hemoglobin, especially under oxygen-limited growth conditions. (From Bergey's Manual of Determinative Bacteriology, 9th ed)

Gram-Negative Aerobic Bacteria Medical Definitions and Terms

CANADIAN MEDICAL GUIDE

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