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

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 c...

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Bibliographic Details
Published in:Mycopathologia (1975) 2004-11, Vol.158 (4), p.427-430
Main Authors: Buzzini, P, Turchetti, B, Facelli, R, Baudino, R, Cavarero, F, Mattalia, L, Mosso, P, Martini, A
Format: Article
Language:English
Subjects:
Algae
Amphotericin B - pharmacology
Animals
Antibiotics
Cattle
Female
Infections
Investigations
Mastitis, Bovine - epidemiology
Mastitis, Bovine - etiology
Mastitis, Bovine - microbiology
Microorganisms
Milk
Milk - microbiology
Nystatin - pharmacology
Prototheca - drug effects
Prototheca - isolation & purification
Prototheca zopfii
Taxonomy
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Summary: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.
ISSN:0301-486X
1573-0832
DOI:10.1007/s11046-004-1819-3