microbiological characterization of a new strain of lactococcus lactis subsp lactis k205 bacteriocinproducing strain lactococcus lactis k205 with antibacterial activity up to 2700 iuml calculated on nisineproducing activity was isolated from buryat beverage kurunga using genotypic analysis of oligonucleotide sequence of 16s rrna gene the strain was identified as l lactis subsp lactis 16s rrna gene nucleotide sequence of k205 strain was deposed in genbankdatabase under the number ef 114305 new k205 strain as compared with museum nisineproducing 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