To elucidate the ecological effect of high oral doses of halotolerant (resistant to table salt) indigenous-gut bacteria on other commensals early in life, we conducted a culture-based study to quantify the effect of intestinal Lactobacillus plantarum strain of bovine origin (with remarkable aerobic growth capabilities and inhibitory activity against Escherichia coli O157:H7 and F5) on clinical ...

Lactic acid bacteria are non pathogenic organism widely distributed in nature typically involved in a large number of spontaneous food fermentation. The purpose of this study was to characterize the bacteriocinogenic lactobacilli from fermented idli batter which can find application in biopreservation and biomedicine. Eight most promising lactobacilli were chosen from twenty two isolates based ...

Hydrostatic pressure may affect the intracellular pH of microorganisms by (i) enhancing the dissociation of weak organic acids and (ii) increasing the permeability of the cytoplasmic membrane and inactivation of enzymes required for pH homeostasis. The internal pHs of Lactococcus lactis and Lactobacillus plantarum during and after pressure treatment at 200 and 300 MPa and at pH values ranging f...

Background: The health benefits of probiotic bacteria are not unknown to anyone. On the other hand, indigenous dairy sources are a potential source of native probiotics. This study aimed to describe the inhibitory activity of Cell-Free Supernatant (CFS), planktonic cells, and biofilm form of Lactobacillus strains isolated from native dairy sources on food pathogens. Methods: Antibacterial acti...

Cell walls of strains of Lactobacillus plantarum lacking the group D precipitinogen (a glucosylribitol teichoic acid) contain glucosylglycerol teichoic acid in which the glycosidic substituents are attached to the primary hydroxyl group of glycerol. Three distinct repeating units have been isolated from the teichoic acid preparation of strain C106, indicating either that the polymer is complex ...

The diversity and dynamics of Lactobacillus populations in traditional raw milk Camembert cheese were monitored throughout the manufacturing process in 3 dairies. Culture-dependent analysis was carried out on isolates grown on acidified de Man - Rogosa - Sharpe agar and Lactobacillus anaerobic de Man Rogosa Sharpe agar supplemented with vancomycin and bromocresol green media. The isolates were ...

Lactobacillus plantarum WLPL04, a novel strain, was isolated from a breast milk sample from a healthy woman and demonstrated several probiotic functions. Here, we present the draft genome sequence of this strain, which contains 3,192,587 bp, a G+C content of 44.52%, 3,158 protein-coding genes, and 53 tRNA genes.

The genome of the immunomodulatory Lactobacillus plantarum MPL16, a strain able to ferment wakame (Undaria pinnatifida), is described here. The reads were assembled into contigs with a total size 3,278,495 bp. The genome information will be useful for further specific genetic studies of this strain that evaluate its immunomodulatory and biotechnological properties.

The potentially probiotic strain Lactobacillus plantarum CCUG 43738, which displayed atypical phenotypic resistance to tetracycline (MIC, 512 microg/ml) and minocycline (MIC, 256 microg/ml), was found to contain a tet(S) gene located on a plasmid of approximately 14 kb. Plasmid curing with novobiocin eliminated this plasmid and restored the tetracycline-susceptible phenotype of the host strain.

Paracellular permeability is determined by the complex structures of junctions that are located between the epithelial cells. Already in 1996, it was shown that the human probiotic strain Lactobacillus plantarum 299v and the rat-originating strain Lactobacillus reuteri R2LC could reduce this permeability in a methotrexate-induced colitis model in the rat. Subsequently, many animal models and ce...