Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: The coccus of the bee.|
Species epithet: named after the god Pluto in Roman mythology.
|Significance:||The disease occurs almost world wide, but is rarely reported from Sweden.
[Of minor importance]
|Alternative Species Name(s):||Melissococcus pluton|
|Type Strain:||ATCC 35311|
||It produces small, white, shiny and well-defined colonies|
||Non-motile cocci in pairs or chains.|
|Gram +/Gram -:||G+|
|Biochemical Tests:||Citrate -|
|Fermentation of carbohydrates:||
Other carbohydrates: Fructose +.
|Spec. Char.:||Optimal growth temperature: 35°C.|
||Cultivated under anaerobic conditions on basal medium agar.|
|Disease:||European Foulbrood of honeybees.
|Hosts:||Honey bee (Apis mellifera)|
|Clinical Picture:||The bacteria attacks the young larvae in the open cells. You will find 3-4 days old larvae moved from the cells, as well as dead, limp and brown larvae.|
|16S rRNA Seq.:|
||Only one species (M. plutonius) has been described in genus Melissococcus and this genus is closely related genus Enterococcus. Thus, these genera are affiliated to the order Lactobacillales.|
|Legislation:||The disease is not covered by the bee disease law in Sweden.|
|Comment:||The disease is not as serious as American foulbrood (see Paenibacillus larvae).|
|Reference(s):||No. 84, 97|
|Link:||En översyn av lagstiftningen om bisjukdomar.|
|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...