Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: a helix shaped rod. |
Species epithet: of liver.
|Significance:||[Of minor importance]|
|Type Strain:||Hh-2 = ATCC 51448 = CCUG 33637.|
|Micromorphology:||Motile rod (0.2-0.3 x 1.5-5.0 µm), which is curved to spiral shaped, and has two bipolar flagella.|
|Gram +/Gram -:||G -|
|Other Enzymes:||Urease +|
|Fermentation of carbohydrates:||Helicobacter spp. can neither ferment nor oxidize carbohydrates. Exception: H. pylori, which can oxidize glucose to acetate.|
|Disease:||Chronic hepatitis, liver cancer (hepatocarcinoma) and inflammatory bowel disease.
|16S rRNA Seq.:|
||About 35 species have been described within the genus Helicobacter, and this genus is most closely related to Campylobacter, Arcobacter and Sulfurospirillum. H. hepaticus is closely related to H. canis and H. bilis.|
|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...