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At least 253 records · Page 14Linked to original sources
PubMed1998

[A study on anti-caries activity of genetic recombinant vaccine of Streptococcus lactis. II. Immunization in vein with recombinant S. lactis in pregnant rabbits].

The effects of immunization in vein with recombinant S. lactis HL107 carring the S. mutans surface protein PAc gene in pregnant rabbits were studied. The results indicated that specific anti-PAc IgG in serum and milk were obviously induced 1 week after immunization and retained at high level for several weeks. It suggests that the recombinant S. lactis HL107 possessing immunogenicity of S. mutans surface protein PAc is able to stimulate specific systemic immune response against PAc.

Animals↗
PubMed1986

Ultrastructure and Host Specificity of Bacteriophages of Streptococcus cremoris, Streptococcus lactis subsp. diacetylactis, and Leuconostoc cremoris from Finnish Fermented Milk "Viili".

"Viili," a fermented milk product, has a firm but viscous consistency. It is produced with traditional mesophilic mixed-strain starters, which have various stabilities in dairy practice. Thirteen morphologically different types of phages were found in 90 viili samples studied by electron microscopy. Ten of the phage types had isometric heads with long, noncontractile tails, two had elongated heads with long, noncontractile tails, and one had a unique, very long elongated head with a short tail. Further morphological differences were found in the tail size and in the presence or absence of a collar, a baseplate, and a tail fiber. To find hosts for the industrially significant phages, we examined the sensitivities of 500 bacterial isolates from starters of the viili. Seven of the phages attacked Streptococcus cremoris strains, three attacked S. lactis subsp. diacetylactis strains, and four attacked Leuconostoc cremoris strains. Some phages differed only in their host specificity. Hosts were not found for 4 of the 13 morphological types of phages.

Journal Article↗