Genetic determinants of industrially important characters in Lactococci


Akcelik M., Sanlibaba P., Tukel C., Tuncer Y.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.25, ss.615-621, 2001 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 25 Konu: 4
  • Basım Tarihi: 2001
  • Dergi Adı: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Sayfa Sayıları: ss.615-621

Özet

Genetic determinants of lactose fermentation, proteolytic activity and bacteriocin production in the strains L. lactis subsp. lactis MPL114, L. lactis subsp. cremoris MPC112 and L. lactis subsp. lactis biovar. diacetylactis MPD166 were studied. As a result of mutation and genetic transfer studies, it was determined that ail of these characters were encoded by the 65.4 kb plasmid in L. lactis subsp. cremoris MPC112. Lactose fermentation and proteolytic activity were encoded by the 68.0 kb plasmid and bacteriocin production was encoded by the 12.4 kb plasmid in L. lactis subsp. lactis MPL114. lactose fermentation, proteolytic activity and bacteriocin production in L. lactis subsp. lactis biovar. diacetylactis MPD166 strain were found to be responsible for the 61.0 kb, 14.2 and 9.0 kb plasmids respectively.