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A proposal for the nomenclature and classification of the Proteus and Providencia groups
Abstract
ABSTRACT
The biochemical characters of the bacteria of the tribe Proteeae are tabulated in order that conclusions may be drawn as to their taxonomic relationships. The evidence indicates that Proteus vulgaris, P. mirabilis, P. rettgeri and Providencia all belong in a major subdivision of the family Enterobacteriaceae of tribal rank which justifies the recognition of the tribe Proteeae.. The biochemical characteristics include Providencia in the tribe. The biochemical differences between the above-mentioned members are at generic level and the division of the tribe into four genera — Proteus, Morganella, Rettger ella, Providencia — seems to be justified. P. vulgaris and P. mirabilis may be considered as two biogroups of the genus Proteus. The serotypes of the genera are composed of many i nfra subspecific entities such as biogroups, biotypes and phage types; they are in reality more inclusive taxa and should be regarded as species. Proposals for the classification and nomenclature of the tribe Proteeae are outlined.
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© Iowa State College Press, 1953