Detection of biofilm formation, virulence factor genes, antibiotic-resistance, adherence properties, and some beneficial properties of cheese origin S. infantarius, S. gallolyticus, and S. lutetiensis strains belonging to the S. bovis/S. equinus complex

Antilisterial activity of raw sheep milk from two native Epirus breeds: Culture-dependent identification, bacteriocin gene detection and primary safety evaluation of the antagonistic LAB biota

“…The absence of the gelE, hyl or cytolysin genes from all thermophilic Streptococcus RM isolates, particularly S. gallolyticus KFM5, S. lutetiensis KFM55 and S. lutetiensis/infantarius KFM60, was another positive finding, consistent with the findings reported by Özkan et al. (2021b) regarding beneficial properties of S. gallolyticus, S. lutetiensis and S. infantarius cheese isolates.…”

“…Several recent studies, particularly dealing with soft acid-curd artisan Turkish cheeses, have linked the prevalence of S. lutetiensis, S. gallolyticus, S. macedonicus and S. infantarius subsp. infantarius with beneficial biotechnological and antagonistic (bacteriocin) properties and/or gene clusters in their genome ( Papadimitriou et al., 2014 ; Hill et al., 2020 ; Demirci et al., 2021 ; Özkan et al., 2021b ; Tsuda and Kodama, 2021 ; Aktas et al., 2022 ; Güley et al., 2022 ; de Oliveira et al., 2022 ). The above phylogenetic and biotechnological cheese ecology studies are emphasized because (i) the isolate S. gallolyticus KFM26 ( Table 4 ) was alternatively identified at 99.93 % similarity of its 16S rRNA gene sequence with S. pasteurianus (a Dutch strain with MK330581.1), suggesting that KFM26 is a S. gallolyticus subsp.…”

Characterization of Lactic Acid Bacteria in Pecorino di Farindola Cheese and Manufacturing with a Lacticaseibacillus paracasei Autochthonous Culture

“…Analogous issues regard other dominant bacterial species found in this study, e.g., L. garviae, Streptococcus infantarius and S. lutetiensis, that can cause infections in humans [41,42] but include also strains that carry beneficial characters and are devoid of virulence traits [43,44].…”

Characterization of two lytic bacteriophages, infecting Streptococcus bovis/equinus complex (SBSEC) from Korean ruminant

“…To date, little is known concerning the presence and exact role of biofilms caused by SBSEC. Several strains of S. galloyticus , including three subspecies known as causative pathogens of infective endocarditis, have higher biofilm formation ability and are significantly associated with antibiotic resistance 35 , 36 . However, the biofilm-producing abilities of some strains of S .…”

“…infantarius subsp. infantarius isolated from dairy products could be regarded as an advantageous characteristic 36 . Similar to the aforementioned SBSEC strains, the host strain KCTC 43,306 could produce biofilm and we were able to confirm the presence of anti-biofilm activity in the isolated phages which can efficiently reduce biofilm formation and the viable bacterial cells in the biofilms.…”