1989•FEMS Microbiology LettersRequires access

Conjugal transfer of plasmid pIP501 from Lactococcus lactis to Lactobacillus delbruckii subsp. bulgaricus and Lactobacillus helveticus

P Langella

Abstract

Plasmid pIP501 was transferred by conjugation from Lactococcus lactis to Lactobacillus delbrückii subsp. bulgaricus and Lactobacillus helveticus. Only Lb. delbrückii subsp. bulgaricus transconjugants could act as a donor in crosses with Lc. lactis. No Lactobacillus transconjugants were detected after inter- or intra-species Lactobacillus crosses. Plasmid pIP501 has undergone no detectable deletion or rearrangement during transfer from Lc. lactis to Lactobacillus strains.

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Key concepts: Lactobacillus helveticus, Lactococcus lactis, Lactobacillus, Plasmid, Lactococcus, Biology, Microbiology, Lactobacillaceae