Correlation of SfiI macrorestriction endonuclease fingerprint analysis of Candida parapsilosis isolates with source of isolation

E. Pontieri, L. Gregori, M. Gennarelli, T. Ceddia, G. Novelli, B. Dallapiccola, Flavia De Bernardis, G. Carruba

Research output: Contribution to journalArticlepeer-review

Abstract

SfiI macrorestriction digests from whole chromosome DNA preparations of 46 isolates of Candida parapsilosis from vaginal (20 isolates), blood (23 isolates) and soil (three isolates) sources were examined by CHEF-MAPPER pulsed-field electrophoresis. The isolates were grouped into nine macrorestriction endonuclease fingerprint (MEF) classes according to the number or size of the macrorestriction fragments, or both. The electrophoretic karyotype (EK) was also examined and found to contain 18 karyotypic classes (named A-R). A comparison between SfiI MEF and EK demonstrated that the former correlated much better than the latter with the source of C. parapsilosis isolates. Five SFiI classes (I-V) contained only vaginal isolates (or vaginal and three soil isolates, class I), and the blood isolates were distributed between four classes (VI-IX). This relationship was less evident with the EK classes as several of these were composed of both vaginal and blood isolates (B, G, L and M). The three soil isolates were in class A which also included one vaginal isolate. We conclude that SfiI macrorestriction endonuclease patterns seem to be useful in discriminating among C. parapsilosis isolates, with apparent association with source of isolation.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalJournal of Medical Microbiology
Volume45
Issue number3
Publication statusPublished - 1996

ASJC Scopus subject areas

  • Microbiology (medical)
  • Microbiology

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