A general procedure has been devised for the determination of aminoacid requirements in Bifidobacterium globosum strains, based upon identification of individual aminoacids singularly deprived of the defined synthetic medium. In the plasmid-positive and plasmid-negative clones of RU 809 and T 19 strains, we found a correlation between the presence of plasmid and L-leucine auxotrophy. This characteristic is not shared by the other 145 strains, 26 of which are plasmid-positive, of the B. globosum species.
Influence of aminoacid requirement on the growth of Bifidobacterium globosum strains
Mattarelli P.;Biavati B.
1999
Abstract
A general procedure has been devised for the determination of aminoacid requirements in Bifidobacterium globosum strains, based upon identification of individual aminoacids singularly deprived of the defined synthetic medium. In the plasmid-positive and plasmid-negative clones of RU 809 and T 19 strains, we found a correlation between the presence of plasmid and L-leucine auxotrophy. This characteristic is not shared by the other 145 strains, 26 of which are plasmid-positive, of the B. globosum species.File in questo prodotto:
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