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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Mycoplasma agalactiae
Category: Notifiable diseases and bacteria
Etymology: Genus name: fungus shaped.
Species epithet: from lack of milk
Significance:  [Important]   
Old Species Name(s):Mycoplasma
Taxonomy:
Phylum
Tenericutes
Class
Mollicutes
Order
Mycoplasmatales
Family
Mycoplasmataceae 
Genus
Mycoplasma
Type Strain: PG2 = NCTC 10123.
Macromorphology (smell): Forms small and very typical umbonated colonies ("fried egg appearance"), which can be observed in a microscope.
Micromorphology: Very small and pleomorphic
Gram +/Gram -:G-, but is normally not gram stained because the cells will then be fragmented.
Metabolism: Facultatively anaerobic
Catalase/Oxidase:
Spec. Char.: Lacks a cell wall.
Disease:Contagious agalactia
Hosts: Goat
Clinical Picture: Inflammation of the udder, joints and eyes, which are often observed in the goat after parturition. The disease results in significantly reduced milk production.
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_009497 PG2T 0 877 438 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
U44763 (T) 1457 

Taxonomy/phylogeny:
 
About 125 species have been described within the genus Mycoplasma. M. agalactiae belongs to the hominis group and is closely related to M. bovis.
Legislation: Contagious agalactia is included in OIE's B-list of major animal diseases. The disease is notifyable in Sweden.
Comment:Note that the mycoplasmas have recently been transferred to a new phylum, Tenericutes.
Updated:2016-01-28

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