Type

Journal Article

Authors

R P Ross
T P Beresford
M J Callanan

Subjects

Microbiology

Topics
multigene family lac operon dna transposable elements dna bacterial cheese molecular sequence data dna intergenic genetic variation lactobacillus food microbiology promoter regions genetic food technology microbiology sequence homology nucleic acid genetics base sequence

Genetic diversity in the lactose operons of Lactobacillus helveticus strains and its relationship to the role of these strains as commercial starter cultures. (2005)

Abstract Two novel insertion sequence elements, ISLhe1 and ISLhe15, were located upstream of the genes encoding the beta-galactosidase enzyme in Lactobacillus helveticus commercial starter strains. Strains with the IS982 family element, ISLhe1, demonstrated reduced beta-galactosidase activity compared to the L. helveticus type strain, whereas strains with the ISLhe15 element expressed beta-galactosidase in the absence of lactose.
Collections Ireland -> Teagasc -> PubMed

Full list of authors on original publication

R P Ross, T P Beresford, M J Callanan

Experts in our system

1
R Paul Ross
Teagasc
Total Publications: 441
 
2
Tom P Beresford
Teagasc
Total Publications: 32
 
3
Michael Callanan
Teagasc
Total Publications: 11