1986. L. lactis cells are cocci that group in pairs and short chains, and, depending on growth conditions, appear ovoid with a typical length of 0.5 - 1.5 µm. Lactococcus lactis is related to other lactic acid bacteria such as Lactobacillus acidophilus in … 2011. lactis (Lister 1873) Schleifer et al. Lactococcus lactis is a Gram-positive bacterium used extensively in the production of buttermilk and cheese, but has also become famous as the first genetically modified organism to be used alive for the treatment of human disease. lactis biovar diacetylactis CRL264 at low pHs. These results indicated that cometabolism of citrate and glucose provided the energy for efficient growth of L. lactis subsp. There was a noticeable color change which indicates the presence of the cytochrome oxidase enzyme. L. lactis subsp. 4. Old synonyms: Streptococcus lactis (Lister 1873) Lohnis 1909, Streptococcus lactis subsp. Lactococcus lactis was again divided into two clusters, A and B. Subspecies were identified in accordance with the locations of the type strains, L. lactis subsp. We report here the results of the application of this method to identify 17 Enterococcusspecies, as well as Lactococcus lactis, Lactococcus garvieae, and Vagococcus fluvialis. The Genus Lactococcus has the characteristics of using fermentation as their metabolic pathway (Holt 528). STREPTOCOCCUS SP O J ATCC 19435; BUCSAV 302; CCM 1877; DSM 20481; NCDO 604; NCIB 6681; O J; WDCM 00016 Streptococcus lactis serovar group n ISOLATED BY ORLA JENSEN - SHATTOCK P M F NAT INST RES DAIRY PRE:FR lactis (Lister 1873) Garvie and Farrow 1982, Bacterium lactis Lister 1873. lactisstrains occur in different surface waters and can be confused with enterococci due to their positive growth on selective enterococcal media as well as positive results in tests commonly used for identification of the genus Enterococcus(escu- lin hydrolysis, acetoin and pyrrolidonyl arylamidase production, growth at 10 °C and in 6.5 % NaCl). Lactococcus lactis subsp. cremoris (cluster A) indicated and L. lactis subsp. Lactococcus lactis subsp. L.lactissubsp.lactis 91 100 100 0 82 0 100 91 0 55b 82b L.garveiae 61 95 100 0 50 0 100 100 0 100 100 L.lactissubsp.cremoris 12 2 2 2 2 22 1 2 1 L.lactissubsp.hordniae 22 2 2 1 2 11 2 2 1 L.plantarum 21 1 2 1 1 12 2 2 1 L.raffinolactis 11v12 2 2 2 2 2 1 L.xyloses 21 1 2 1 2 11 2 2 1 We demonstrated that L. lactissubsp. tructae Perez et al. Lactococcus lactis has two subspecies, lactis and cremoris, both of which are essential in manufacture of many varieties of cheese and other fermented milk products. lactis (cluster B). The test result of the oxidase test for L. lactis was not as expected.