Species/Subspecies: | Shigella flexneri | ||||||||
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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: | Class Gammaproteobacteria Order Enterobacterales Family Enterobacteriaceae Genus Shigella |
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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-glucose + lactose - maltose ? L-rhamnose ? sucrose - L-arabinose ? cellobiose - D-mannitol + salicin - trehalose ? glycerol ? inulin ? raffinose V D-sorbitol V starch ? |
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Spec. Char.: | |||||||||
Disease: | Bacillary dysentery |
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Hosts: | Children | ||||||||
Clinical Picture: | Diarrhea | ||||||||
Genome Sequence: |
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16S rRNA Seq.: |
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Taxonomy/phylogeny:
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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: | 2023-03-29 |
News |
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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 VetBact Published 2023-03-15. Read more... |