Stoyanova, L.G., Sultimova, T.D., Stroeva, A.R., Netrusov, A.I.

Microbiological characterization of new strain Lactococcus lactis subsp. lactis K-205

Lomonosov Moscow State University, Russia

Bacteriocin-producing strain Lactococcus lactis K-205 with antibacterial activity up to 2,700 IU/ml (calculated on nisine-producing activity) was isolated from Buryat beverage kurunga. Using genotypic analysis of oligonucleo-tide sequence of 16S rRNA gene, the strain was identified as L.lactis subsp. lactis. 16S rRNA gene nucleotide sequence of K-205 strain was deposed in GenBank database under the number EF 114305. New K-205 strain as compared with museum nisine-producing strain L.lactis subsp. lactis had wider spectrum of bactericidal as well as fungicidal activity which is a rare characteristic for the natural isolates of this microorganism.
Zh. Mikrobiol. (Moscow), 2008, No. 1, P. 60—63