Veterinary bacteriology: information about important bacteria
|Species/Subspecies:||Listeria ivanovii subsp. ivanovii|
|Categories:||Causes hemolysis; motile|
|Etymology:||Genus name: named after the British surgeon Lord Lister. |
Species epithet: named after the Bulgarian microbiologist Ivan Ivanov.
|Significance:||[Of minor importance]|
|Type Strain:||SLCC 2379 = ATCC 19119|
|Macromorphology (smell):||Small (0.5-1.5 mm in diameter) greyish blue colonies with hemolysis zone on blood agar.|
|Micromorphology:||Short (0.4-0.5 x 0.5-2 µm) and motile rods. L. ivanovii exhibits actin-based motility (see references 154 and 155 below).|
|Gram +/Gram -:||G+|
|Other Enzymes:||Esculinase +, hippuricase +, tryptophanase -, urease -.|
|Biochemical Tests:||Methyl red +, Voges-Proskauer +.|
|Fermentation of carbohydrates:||
Other carbohydrates: Galaktos v, ribos +, xylose +.
|Disease:||Abortion and stillbirth.
|Hosts:||Sheep and cattle.|
|16S rRNA Seq.:|
||There are 21 species and subspecies described within the genus and particularly Listeria ivanovii, L. innocua and L. monocytogenesare very closely related.|
|Reference(s):||No. 154, 155|
|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...