Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: tissue friend.|
Species epithet: of sleep (refers to one of the disease conditions).
|Alternative Species Name(s):||Haemophilus agni, Histophilus ovis, Haemophilus somnus, Haemophilus somnifer|
|Type Strain:||8025 = ATCC 43625 = CCUG 36157.|
||Some strains are haemolytic. Forms small colonies (0.2-0.5 mm in diameter), which contain a yellow pigment.|
|Micromorphology:||Small nonmotile rods|
|Gram +/Gram -:||G-|
|Other Enzymes:||Esculinase -, tryptophanase (+), urease -.|
|Fermentation of carbohydrates:||
Other carbohydrates: dulcitol V, D-galactose V, inositol V, melezitose -, melibiose -, xylitol ?
|16S rRNA Seq.:|
||Only one species have been described within genus Histophilus, which is relatively close to Nicoletella semolina, which also is a single species within its genus.|
|Comment:||X- and V-factor are not requirements for growth in contrast to bacteria belonging to the closely related genus Haemophilus.|
|New names of bacterial phyla|
The taxonomic category phylum was previously not regulated by the International Code of Nomenclature of Prokaryotes (ICNP), but now this has changed and it was decided to revise the names of bacterial phyla. All phyla must be written in italics (which has been done on VetBact also before) and have the ending -ota.Published 2023-03-01. Read more...
|The taxonomy of chlamydias|
Species within the family Chlamydiaceae were previously divided into two genera Chlamydia and Chlamydophila. However, the differences between these two genera were not that great and many research groups have not accepted this division. Therefore, the genus Chlamydophila has been returned to the genus Chlamydia and this change has now been incorporated in VetBactPublished 2023-03-15. Read more...