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  • Title: Genomic fingerprints, ARDRA profiles and quinone systems for classification of Pasteurella sensu stricto.
    Author: Kainz A, Lubitz W, Busse HJ.
    Journal: Syst Appl Microbiol; 2000 Dec; 23(4):494-503. PubMed ID: 11249019.
    Abstract:
    In order to investigate the relationships between species of the genus Pasteurella sensu stricto such as Pasteurella multocida, Pasteurella canis, Pasteurella stomatis, Pasteurella dagmatis, Pasteurella avium, Pasteurella volantium, Pasteurella gallinarum, Pasteurella species A, Pasteurella species B and "Pasteurella leonis" MCCM 00659 their genomic fingerprints and ARDRA profiles were compared and their quinone systems were analysed. Visual comparison of band patterns from rep-PCR (ERIC-, REP- and BOX-PCR) and the analyses of the combined band patterns by UPGMA (unweighted pair group method with averages) dendrogram derived from the combined fingerprint profiles demonstrated that each strain displays a distinct genomic fingerprint. In members of the same species several similarities in the band patterns were observed. Combined ARDRA profiles, obtained after digestion of amplified 23S rRNA coding genes with the enzymes DdeI, MseI and RsaI, revealed a dissection of the members of the genus Pasteurella sensu stricto into two groups which was in agreement with the two groups obtained from our analyses of the quinone systems. These two groups corresponded with the two phylogenetically determined subclusters 3A and 3B described previously. The species of subcluster 3A displayed a quinone system with ubiquinone Q-7 (32-56%) and ubiquinone Q-8 (44-63%) as major compounds. Members of subcluster 3B had a quinone system with ubiquinone Q-8 (86-97%) as the major compound. Based on these results it can be suggested that the genus Pasteurella sensu stricto should be restricted to the species of subcluster 3B including the species Pasteurella multocida, Pasteurella canis, Pasteurella stomatis, Pasteurella dagmatis and Pasteurella species B. In addition, evidence was found which would indicate that: 1) Pasteurella canis MCCM 00927 is misnamed and should be reclassified with Pasteurella multocida; 2) Pasteurella multocida subsp. septica may be classified as a separate species; and 3) "Pasteurella leonis" MCCM 00659 represents a separate species within subcluster 3B and thus could be described as a species of Pasteurella sensu stricto (also in a redefined genus) when more strains become available.
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