Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: named after the British surgeon Lord Lister. |
Species epithet: harmless.
|Significance:||Can be found as a contaminant of food, but can easily be differentiated from L. monocytogenes by cultivation on OCLA-agar. See L. monocytogenes.
[Of minor importance]
|Type Strain:||ATCC 33090 = CCUG 15531 = NCTC 11288.|
|Macromorphology (smell):||No hemolysis on blood agar.|
|Micromorphology:||Motile rod (0.4-0.5 x 1-2 µm). Has a few peritrichous flagella.|
|Gram +/Gram -:||G+|
|Other Enzymes:||Esculinase +, lecithinase -, hippuricase +, tryptophanase - and urease -.|
|Biochemical Tests:||Methyl red +, Voges-Proskauer +.|
|Fermentation of carbohydrates:||
Other carbohydrates: Galactose -, ribose -, D-xylitol +, D-xylose -.
|Reservoir:||The environment (soil, water etc.).|
|16S rRNA Seq.:|
||There are 21 species and subspecies described within the genus and all are very similar. L. innocua and L. monocytogenes have almost identical 16S rRNA sequences.|
|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...