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Utilization of lactose and presence of the phospho-β-galactosidase (lacG) genein Lactococcus garvieae isolatesfrom different sources
Aguado-Urda, Mónica; Cutuli, M Teresa; Blanco, M Mar; Aspiroz, Carmen; Tejedor, José L; Fernández-Garayzábal, José F; Gibello, Alicia.
Affiliation
  • Aguado-Urda, Mónica; Complutense University. Faculty of Veterinary Science. Department of Animal Health. Madrid. Spain
  • Cutuli, M Teresa; Complutense University. Faculty of Veterinary Science. Department of Animal Health. Madrid. Spain
  • Blanco, M Mar; Complutense University. Faculty of Veterinary Science. Department of Animal Health. Madrid. Spain
  • Aspiroz, Carmen; Royo Villanova Hospital. Microbiology Unit. Zaragoza. Spain
  • Tejedor, José L; Dibaq Group. Segovia. Spain
  • Fernández-Garayzábal, José F; Complutense University. Faculty of Veterinary Science. Department of Animal Health. Madrid. Spain
  • Gibello, Alicia; Complutense University. Faculty of Veterinary Science. Department of Animal Health. Madrid. Spain
Int. microbiol ; 13(4): 189-193, dic. 2010.
Article in En | IBECS | ID: ibc-96707
Responsible library: ES1.1
Localization: BNCS
ABSTRACT
This study evaluates the utilization of lactose (Lac) and the presence of the phospho-β-galactosidase (lacG) gene as markers for distinguishing between fish (Lac-/lacG-) and dairy isolates (Lac+/lacG+) of Lactococcus garvieae, using a panel of L. garvieae isolates from different sources. None of the fish isolates produced acid from lactose (Lac-), however Lac-/lacG- isolates were observed in pigs, cows, birds and humans. Most of the dairy isolates (77.8%) were Lac+/lacG+, but some dairy isolates did not produce acid from this sugar. Data in the present study show that the ability to metabolize lactose and the presence of the lacG gene are heterogeneously scattered among L. garvieae isolates of different sources. Therefore, the use of these criteria as markers to differentiate between L. garvieae isolates of dairy and fish origin should be considered with caution (AU)
RESUMEN
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Collection: 06-national / ES Database: IBECS Main subject: Lactococcus / Beta-Galactosidase / Dairy Products / Fishes / Lactose Limits: Animals / Humans Language: En Journal: Int. microbiol Year: 2010 Document type: Article
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Collection: 06-national / ES Database: IBECS Main subject: Lactococcus / Beta-Galactosidase / Dairy Products / Fishes / Lactose Limits: Animals / Humans Language: En Journal: Int. microbiol Year: 2010 Document type: Article