Mannheimia indoligenes
| Mannheimia indoligenes | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Kingdom: | Pseudomonadati |
| Phylum: | Pseudomonadota |
| Class: | Gammaproteobacteria |
| Order: | Pasteurellales |
| Family: | Pasteurellaceae |
| Genus: | Mannheimia |
| Species: | M. indoligenes
|
| Binomial name | |
| Mannheimia indoligenes Christensen et al., 2024
| |
Mannheimia indoligenes is a species of Gram-negative, facultatively anaerobic bacteria in the family Pasteurellaceae. It was first described in 2024 based on a collection of 25 strains belonging to clade V of the genus Mannheimia, primarily isolated from cattle.[1]
The type strain, M14.4T (= DSM 116804T = CCUG 77347T), was originally isolated from the tongue of a healthy cow in Scotland between 1959 and 1961.[1] However, other strains included in the species were isolated from a variety of tissues and from cattle with clinical disease. This suggests that M. indoligenes may form part of both the commensal and pathogenic microbiota in cattle.
Morphology and physiology
[edit]Mannheimia indoligenes cells are Gram-negative, non-motile rods. They are facultatively anaerobic and non-spore-forming. The bacterium produces indole and displays a distinct fatty acid and polar lipid profile. It uses coenzyme Q-7 as its sole respiratory quinone.[1]
Pathogenicity
[edit]Although the type strain was recovered from a healthy animal, several other strains were isolated from cattle with disease. This supports a possible role for M. indoligenes in various infections, though further studies are needed to confirm pathogenic mechanisms and prevalence.[1]