Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Moraxellaceae, Genus Moraxella, Moraxella
boevrei Kodjo et al. 1997.
Gram-negative thin rods to coccus-like structures. Have a tendency to occur as
diplobacilli or in short chains. Nonmotile.
Colonies on blood agar are gray-white, rough, and small, 0.5 mm in diameter after 48
hours, and are surrounded by a wide area of hemolysis. Aerobic. Growth occurs in an
aerobic atmosphere (better with 5% CO2) on 5% sheep or human blood agar plates or
chocolate agar plates. Growth does not occur or occurs weakly on nutrient agar. No
growth on MacConkey agar or in minimal medium containing ammonium and acetate.
Optimum temperature for growth is 35 ºC.
Isolated from goats (nasal flora).
- Elliot Juni and Kjell Bovre: Order IX Pseudomonadales Orla-Jensen 1921, Family II Moraxellaceae Rossau, Van Landschoot,
Gillis and De Ley 1991 In: Bergey’s Manual of Systematic Bacteriology, Second edition,Vol two, part B, George M. Garrity (Editor-in-
Chief), pp. 411-442.
- Angeli Kodjo, Yves Richard, and Tone Tonkum. Moraxella boevrei sp. nov., a New Moraxella Species Found in Goats. Int J Syst
Bacteriol January 1997 47:115-121.
The only conventional characteristic that distinguishes M. boevrei from M. bovis is the reduction of nitrate.
Positive results for catalase, esterase, gelatin hydrolysis, nitrates reduction, oxidase, proteolysis on Loeffler slants, Tween 80
Negative results for alkaline phosphatase, acid phosphatase, DN-ase, indole production, phenylalanine deaminase. No acid is
produced from carbohydrates.
(c) Costin Stoica