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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Serratia marcescens subsp. marcescens
Category: Motile
Etymology: Genus name: named after the Italian physicist Serafino Serrati
Species epithet: to decay
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Enterobacteriales
Family
Enterobacteriaceae 
Genus
Serratia
Type Strain: ATCC 13880 = CCUG 1647 = NCTC 10211.
Macromorphology (smell): Forms opaque colonies, which can be pigmented (pink to red) or non-pigmented.
Micromorphology: Motile rods (0,5-0,8 x 0,9-2,0 µm) with peritrichous flagella
Gram +/Gram -:G-
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/-
Other Enzymes: Citrate +, DNase +, tryptophanase -
Biochemical Tests: Esculinase +, methyl red +, Voges-Proskauer +
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+?+-?
L-arabinosecellobioseD-mannitolsalicintrehalose
--+?+
glycerolinulinraffinoseD-sorbitolstarch
???+?
Can also ferment xylitol.
Spec. Char.:
Disease:Opportunist, which can sometimes cause bovine mastitis and septicaemia in chickens (rare). Nosocomial infections in man.
Hosts: Cattle, chickens, man etc.
Clinical Picture:
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
AJ233431 (T) 1505  

Taxonomy/phylogeny:
 
About 20 species have been described within genus Serratia, but it is almost only S. marcescens, which is pathogenic.
Updated:2018-03-29

News

The revised taxonomy of the mollicutes

The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon. 

Published 2021-11-25. Read more...

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