The Classification and Characterization of Chromobacteria from a Lowland River

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Abstract
A number of strains of chromobacteria which gave diffuse spreading colonies were isolated from the River Wey [United Kingdom]. Phenotypic data for the isolates indicated that these spreading chromobacteria had many characters of Chromobacterium but they could not be accommodated in either of the 2 recognized species, C. lividum and C. violaceum. Although closest to C. violaceum, the spreading chromobacteria represent a well-defined group of strains which should be considered as a separate species and for which the specific name C. fluviate sp. nov. is suggested. The DNA of strains so far analyzed has a mol% GC of 50-52, adding further confirmation that they are distinct from other Chromobacterium spp.