title: Streptococcus thermophilus is able to produce a beta-galactosidase active during its transit in the digestive tract of germ-free mice.
abstract: This work presents data on the application of a bacterial luciferase used to monitor gene expression of Streptococcus thermophilus in the digestive tract. The main result is that the bacterium was able to produce an active beta-galactosidase in the digestive tract, although it did not multiply during its transit. This production was enhanced when lactose (the inducer) was added to the diet.
authors.affiliation: Arilait Recherches, 75009 Paris, France.
authors.forename: Sophie
authors.initials: S
authors.lastname: Drouault
authors.forename: Jamila
authors.initials: J
authors.lastname: Anba
authors.forename: Gérard
authors.initials: G
authors.lastname: Corthier
mesh_terms: D000818:Animals; D004064:Digestive System / Q000382:microbiology*; D005856:Germ-Free Life; D007785:Lactose / Q000378:metabolism; D008156:Luciferases / Q000235:genetics / Q000378:metabolism; D008297:Male; D051379:Mice; D008809:Mice, Inbred C3H; D013291:Streptococcus / Q000201:enzymology*; D001616:beta-Galactosidase / Q000378:metabolism*
chemical_list: D008156:Luciferases; D001616:beta-Galactosidase; D007785:Lactose