An examination of the results of phylogenetic analyses based on the sequences of fragments of the 16S rRNA, and genes, and the discrimination of genomovars based on siderophore diversity within the genus , has added important taxonomic tools in the characterization of . Eighteen reference strains, nine newly identified hydrocarbon-degrading strains and three strains showing relevant physiological characteristics of , together with the type strains of four related species, were included in the study. A novel genomovar within the species is described. A summary of the methodology used in these studies and the results of our attempts to define a solid internal subdivision of this important species within the genus are presented and discussed.


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vol. , part 10, pp. 2309 - 2315

Designations of the strains used in this study

PCR primers used in this study

GenBank accession numbers of the sequences used in this study

Consensus similarity indices between genomovars of and the closest related species

[PDF file of Supplementary Tables](114 KB)


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