- Turkish Journal of Biology
- Vol: 24 Issue: 3
- Identification of Lactoce Plasmids in Lactococcus lastic subsp. lactis Stains
Identification of Lactoce Plasmids in Lactococcus lastic subsp. lactis Stains
Authors : Çağla Tükel, Mustafa Akçelik
Pages : 405-424
View : 9 | Download : 5
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Plasmids encoding lactic acid fermentation ability were investigated in 50 strains of L. lactis subsp. lactis. Acriflavine was used for the elimination of lactose fermentation ability (Lac + ) from wild type strains. Lactose negative (Lac - ) mutants were selected on lactose indicator agar media. Six different lactose plasmids were identified for fifty strains by comparison of plasmid profiles of Lac - and Lac + mutants. The molecular sizes of these lactose plasmids ranged between 26.3 and 38.5 kb.Keywords : Lactococcus lactis subsp. lactis, lactic acid fermentation, plasmid.