Genetic Variability among Blastoschizomyces Capitatus Isolates from Different Clinical Sources

Sixteen clinical isolates and nine ATCC reference strains of Blastoschizomyces capitatus were analysed genetically, examined for the cellobiose, arbutin and salicin assimilation and tested for the aspartyl-proteinase secretion. The restriction endonuclease analysis (REA) with HpaII and HinfI enzymes...

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Bibliographic Details
Published in:International journal of immunopathology and pharmacology 2005-07, Vol.18 (3), p.531-539
Main Authors: Pontieri, E., Caracciolo, C., Ceddia, T., Oliva, B., Ferrini, A., Girmenia, C., D'Antonio, D.
Format: Article
Language:English
Subjects:
Arbutin - metabolism
Benzyl Alcohols - metabolism
Cellobiose - metabolism
Chromosomes, Fungal
DNA Restriction Enzymes
DNA, Fungal - analysis
Electrophoresis, Agar Gel
Genetic Variation
Geotrichum - genetics
Geotrichum - growth & development
Geotrichum - isolation & purification
Geotrichum - metabolism
Geotrichum - pathogenicity
Glucosides
Humans
Karyotyping
Metalloendopeptidases - secretion
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Summary:Sixteen clinical isolates and nine ATCC reference strains of Blastoschizomyces capitatus were analysed genetically, examined for the cellobiose, arbutin and salicin assimilation and tested for the aspartyl-proteinase secretion. The restriction endonuclease analysis (REA) with HpaII and HinfI enzymes and the electrophoretic karyotype (EK) were investigated. Both the restriction enzymes revealed two groups (I, II) constituted by the same isolates: 17 isolates (68%) in group I and 8 (32%) in group II. The EK analysis revealed sixteen groups. These data prompts for a genetic variability of the isolates of Blastoschizomyces capitatus and their account in two distinct genetic groups as suggested by REA. This grouping was confirmed by examing the utilisation of cellobiose, arbutin and salicin. The tests for secretory aspartyl proteinase (Sap) were positive only for three isolates, suggesting a marginal role of this specific enzyme in pathogenesis for these isolates.
ISSN:0394-6320
2058-7384
DOI:10.1177/039463200501800313