Multivariate analysis of quantitative chemical and enzymic characterization data in classification of Actinobacillus, Haemophilus and Pasteurella spp

Journal of General Microbiology
I BrondzM Sjöström

Abstract

Chemotaxonomic data for strains of Actinobacillus, Haemophilus and Pasteurella spp. were analysed using three multivariate statistical strategies: principal components, partial least squares discriminant, and soft independent modelling of class analogy. The species comprised Actinobacillus actinomycetemcomitans. Haemophilus aphrophilus, H. paraphrophilus, H. influenzae, Pasteurella multocida, P. haemolytica and P. ureae. Strains were characterized by cell sugar and fatty acid composition, lysis kinetics during EDTA and EDTA plus lysozyme treatment, and methylene blue reduction. In total 23 quantitative variables were compiled from chemotaxonomic analyses of 25 strains. A. actinomycetemcomitans and H. aphrophilus formed distinct classes which differed from those of H. paraphrophilus, H. influenzae and Pasteurella spp. All characterization variables, except those describing fatty acid content, contributed significantly to inter-species discrimination.

Citations

Jun 1, 1991·APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica·I BrondzM Sjöström
Dec 1, 1992·Acta Odontologica Scandinavica·I Brondz, I Olsen
Mar 30, 1999·Zentralblatt Für Bakteriologie : International Journal of Medical Microbiology·R BootF A Reubsaet
Jun 1, 1994·Scandinavian Journal of Dental Research·H R Preus, D T Russell
Dec 1, 1992·Oral Microbiology and Immunology·H R PreusJ J Zambon
Jan 1, 1991·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·S C Holt, T E Bramanti

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