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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Shigella flexneri
Category: Motile
Etymology: Genus name: named after the Japanese bacteriologist K. Shiga, who first (1896) discovered the bacterium, which causes dysentery.
Species epithet: named after the american bacteriologist Simon Flexner
Significance:  [Important]   
Taxonomy:
Phylum
Proteobacteria
Class
Gammaproteobacteria
Order
Enterobacteriales
Family
Enterobacteriaceae 
Genus
Shigella
Type Strain: ATCC 29903.
Macromorphology (smell):
Micromorphology: S. flexneri exhibits actin-based motility (see references 154 and 155 below).
Gram +/Gram -:G-
Metabolism: Facultatively anaerobic
Catalase/Oxidase:+/-
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
+-??-
L-arabinosecellobioseD-mannitolsalicintrehalose
?-+-?
glycerolinulinraffinoseD-sorbitolstarch
??VV?
Glucose (gas) -, melibiose -, xylose -.
Spec. Char.:
Disease:Bacillary dysentery
Hosts: Children
Clinical Picture: Diarrhea
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_004741 2457(T) 4 599 354 1c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
X96963 ATCC 29903 1488 

Taxonomy/phylogeny:
 
Four species have been described within the genus Shigella. These species and Escherichia coli are all very closely related and can phylogenetically be regarded as the same species. In spite of that fact, they have been taxonomically arranged into two different genera.
Reference(s): No. 154, 155
Updated:2020-10-19

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