Mannheimia glucosida
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| Mannheimia glucosida | |
|---|---|
Scientific classification  | |
| Domain: | Bacteria |
| Kingdom: | Pseudomonadati |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Pasteurellales |
| Family: | Pasteurellaceae |
| Genus: | Mannheimia |
| Species: | M. glucosida |
| Binomial name | |
| Mannheimia glucosida Angen et al. 1999[1] | |
| Type strain | |
| CCUG 38457T; CIP 106063T; DSM 19638T; P925 | |
Mannheimia glucosida is a species of Gram-negative bacteria in the family Pasteurellaceae. It was first described in 1999 following a taxonomic revision of the Pasteurella haemolytica complex.[1]
The species name glucosida is derived from the Greek word glykys meaning "sweet" and the Latin suffix -ida, indicating a connection to glucosides. The name reflects the bacterium's ability to ferment glucoside sugars.[2]
Morphology and physiology
M. glucosida is a non-motile, Gram-negative coccobacillus. It is facultatively anaerobic and forms small, grayish, smooth colonies on blood agar, often exhibiting β-hemolysis. The bacterium grows optimally at 37°C and can ferment glucose, lactose, maltose, and sucrose without gas production. It is oxidase-positive and catalase-positive.[3]
Isolation and habitat
The type strain was isolated from the lung of a sheep. Other strains have been recovered from the upper respiratory tracts of healthy ruminants, especially sheep and cattle, indicating a role as part of the commensal microbiota.[1]
Clinical significance
M. glucosida has been implicated in ovine mastitis. A 2010 study in southeastern Australia found it in 50% of clinical mastitis cases, while it was rarely found in healthy udder samples.[4]
Although primarily a veterinary organism, M. glucosida has also been isolated from a human bite wound, suggesting its potential as a zoonotic pathogen.[5]