title: Growth advantage of fast lactose-fermenting mutants of slow lactose-fermenting coliform bacteria in gnotobiotic rats and mice.
abstract: When germ-free rats or mice were mono-associated with either Escherichia coli lac(-) (ATCC 15939) or a slow lactose-fermenting coliform (Paracolobactrum coliforme ATCC 11605), fast lactose-fermenting mutants overgrew the parent organisms.
mesh_terms: D000818:Animals; D002452:Cell Count; D004755:Enterobacteriaceae / Q000254:growth & development* / Q000378:metabolism; D004926:Escherichia coli / Q000254:growth & development* / Q000378:metabolism; D005243:Feces / Q000382:microbiology; D005285:Fermentation; D005856:Germ-Free Life; D007785:Lactose / Q000378:metabolism; D051379:Mice; D008815:Mice, Inbred Strains; D009154:Mutation; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors
chemical_list: D007785:Lactose