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Mycopathologia. 2004 Nov;158(4):427-30.

First large-scale isolation of Prototheca zopfii from milk produced by dairy herds in Italy.

Author information

1
Dipartimento di Biologia Vegetale e Biotecnologie Agroambientali, Sezione di Microbiologia Applicata, University of Perugia, Borgo XX Giugno, I 06100 Perugia, Italy. pbuzzini@unipg.it

Abstract

A total of 1045 milk samples collected from infected and non infected quarters of 269 cows were investigated. This study showed that 4.7% of samples possessed cells of Prototheca spp. (10(6)cells/ml). The presence of other pathogenic microorganisms was also monitored. Prototheca spp. isolates were classified on the basis of current taxonomic guidelines and identified as P. zopfii. Susceptibility tests carried out in vitro by using 25 antibiotic compounds revealed that the strains of P. zopfii. were susceptible only to nystatin and amphotericin B (58 and 33% of total strains, respectively). The present study represents the first large-scale investigation carried out in Italy on the isolation of this achlorophyllous yeast-like microalga in milk samples produced by dairy herds.

PMID:
15630551
DOI:
10.1007/s11046-004-1819-3
[Indexed for MEDLINE]

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