title: Casein utilization by Streptococcus thermophilus results in a diauxic growth in milk.
abstract: In milk, Streptococcus thermophilus displays two distinct exponential growth phases, separated by a nonexponential one, during which proteinase synthesis was initiated. During the second exponential phase, utilization of caseins as the source of amino acids resulted in a decrease in growth rate, presumably caused by a limiting peptide transport activity.
authors.affiliation: Unité de Recherches Laitières et Génétique Appliquée. Unité de Biochimie et Structure des Protéines, Institut National de la Recherche Agronomique, 78352 Jouy-en-Josas Cedex, France.
authors.forename: Catherine
authors.initials: C
authors.lastname: Letort
authors.forename: Michèle
authors.initials: M
authors.lastname: Nardi
authors.forename: Peggy
authors.initials: P
authors.lastname: Garault
authors.forename: Véronique
authors.initials: V
authors.lastname: Monnet
authors.forename: Vincent
authors.initials: V
authors.lastname: Juillard
mesh_terms: D000818:Animals; D001692:Biological Transport; D002364:Caseins / Q000378:metabolism*; D002417:Cattle; D010450:Endopeptidases / Q000378:metabolism; D008892:Milk / Q000378:metabolism*; D010455:Peptides / Q000378:metabolism; D013291:Streptococcus / Q000201:enzymology / Q000254:growth & development* / Q000378:metabolism
chemical_list: D002364:Caseins; D010455:Peptides; D010450:Endopeptidases