"Praha" . "Lortal, Sylvie" . "High autolytic Lactobacillus helveticus strain selection using detection of peptidoglycan hydrolases genes"@en . "RIV/60461373:22330/10:00022881!RIV11-MSM-22330___" . . . "[AA985234DC71]" . "296815" . . "Z(MSM6046137305)" . . "RIV/60461373:22330/10:00022881" . . "Lactobacillus helveticus is mainly used in cheese manufacture as starter culture. Its intracellular proteolytic enzymes influence positively cheese ripening. The autolysis of the bacterial cell is crucial for intracellular enzyme release Autolysis is defined as a degradation of peptidoglycan by enzymes having hydrolytic specificity, i.e. peptidoglycan hydrolases (PGHs). It was shown that Lactobacillus helveticus strains differed in their autolytic activity among each other but it\u00B4s still not known an origin of this difference. The goal of this study was to select a high autolytic strain of Lactobacillus helveticus on the genomic basis, to detect presence or absence of potential PGH genes, and to explain the reason of different autolytic activity among Lactobacillus helveticus strains. The genetic diversity of 25 Lactobacillus helveticus strains from different origin and biotope was evaluated by pulsed field gel electrophoreses (PFGE) and the difference of autolytic activity among these strains was"@en . "Lactobacillus helveticus; chesse ripenning; autolysis; peptidoglycan hydrolases"@en . . "V\u00FDb\u011Br vysoko-autolytick\u00FDch kmen\u016F Lactobacillus helveticus pomoc\u00ED detekce gen\u016F k\u00F3duj\u00EDc\u00EDch peptidoglykan-hydrolasy" . . . "P\u0159i v\u00FDrob\u011B s\u00FDr\u016F s doh\u0159\u00EDvanou s\u00FD\u0159eninou se pou\u017E\u00EDvaj\u00ED jako z\u00E1kysov\u00E9 kultury kmeny Lb. helveticus disponuj\u00EDc\u00ED vysokou intracelul\u00E1rn\u00ED proteolytickou aktivitou, kter\u00E1 m\u016F\u017Ee velice pozitivn\u011B ovliv\u0148ovat zr\u00E1n\u00ED s\u00FDr\u016F. Podm\u00EDnkou ovlivn\u011Bn\u00ED zr\u00E1n\u00ED proteolytick\u00FDm syst\u00E9mem je ov\u0161em otev\u0159en\u00ED bakteri\u00E1ln\u00ED bu\u0148ky, tzv. autol\u00FDza, a uvoln\u011Bn\u00ED proteolytick\u00FDch enzym\u016F do t\u011Bsta s\u00FDru. Autol\u00FDza je definov\u00E1na jako \u0161t\u011Bpen\u00ED peptidoglykanu enzymy s peptidoglycan hydrolasovou specificitou, a je jedn\u00EDm ze z\u00E1sadn\u00EDch krit\u00E9ri\u00ED p\u0159i v\u00FDb\u011Bru kmen\u016F pro v\u00FDrobu s\u00FDru. Kmeny Lb. helveticus se mezi sebou li\u0161\u00ED v autolytick\u00FDch aktivit\u00E1ch, ale st\u00E1le nejsou objasn\u011Bny p\u0159\u00ED\u010Diny t\u011Bchto rozd\u00EDl\u016F. C\u00EDlem t\u00E9to pr\u00E1ce bylo zjistit, jestli je mo\u017En\u00E9 vyb\u00EDrat k v\u00FDrob\u011B s\u00FDr\u016F vysoko-autolytick\u00E9 kmeny Lactobacillus helveticus na z\u00E1klad\u011B genov\u00E9ho vybaven\u00ED, tedy p\u0159\u00EDtomnosti \u010Di nep\u0159\u00EDtomnosti gen\u016F k\u00F3duj\u00EDc\u00EDch peptidoglycan hydrolasy, a z\u00E1rove\u0148 alespo\u0148 \u010D\u00E1ste\u010Dn\u011B objasnit p\u0159\u00ED\u010Dinu rozd\u00EDl\u016F v autol\u00FDze mezi jednotliv\u00FDmi kmeny. U sb\u00EDrky 25 kmen\u016F Lb.helveticus poch\u00E1zej\u00EDc\u00EDch z r\u016Fzn\u00FDch" . "V\u00FDb\u011Br vysoko-autolytick\u00FDch kmen\u016F Lactobacillus helveticus pomoc\u00ED detekce gen\u016F k\u00F3duj\u00EDc\u00EDch peptidoglykan-hydrolasy"@cs . . "Valence-Bertel, Florence" . . "2010-01-01+01:00"^^ . "V\u00FDb\u011Br vysoko-autolytick\u00FDch kmen\u016F Lactobacillus helveticus pomoc\u00ED detekce gen\u016F k\u00F3duj\u00EDc\u00EDch peptidoglykan-hydrolasy"@cs . . "2"^^ . "P\u0159i v\u00FDrob\u011B s\u00FDr\u016F s doh\u0159\u00EDvanou s\u00FD\u0159eninou se pou\u017E\u00EDvaj\u00ED jako z\u00E1kysov\u00E9 kultury kmeny Lb. helveticus disponuj\u00EDc\u00ED vysokou intracelul\u00E1rn\u00ED proteolytickou aktivitou, kter\u00E1 m\u016F\u017Ee velice pozitivn\u011B ovliv\u0148ovat zr\u00E1n\u00ED s\u00FDr\u016F. Podm\u00EDnkou ovlivn\u011Bn\u00ED zr\u00E1n\u00ED proteolytick\u00FDm syst\u00E9mem je ov\u0161em otev\u0159en\u00ED bakteri\u00E1ln\u00ED bu\u0148ky, tzv. autol\u00FDza, a uvoln\u011Bn\u00ED proteolytick\u00FDch enzym\u016F do t\u011Bsta s\u00FDru. Autol\u00FDza je definov\u00E1na jako \u0161t\u011Bpen\u00ED peptidoglykanu enzymy s peptidoglycan hydrolasovou specificitou, a je jedn\u00EDm ze z\u00E1sadn\u00EDch krit\u00E9ri\u00ED p\u0159i v\u00FDb\u011Bru kmen\u016F pro v\u00FDrobu s\u00FDru. Kmeny Lb. helveticus se mezi sebou li\u0161\u00ED v autolytick\u00FDch aktivit\u00E1ch, ale st\u00E1le nejsou objasn\u011Bny p\u0159\u00ED\u010Diny t\u011Bchto rozd\u00EDl\u016F. C\u00EDlem t\u00E9to pr\u00E1ce bylo zjistit, jestli je mo\u017En\u00E9 vyb\u00EDrat k v\u00FDrob\u011B s\u00FDr\u016F vysoko-autolytick\u00E9 kmeny Lactobacillus helveticus na z\u00E1klad\u011B genov\u00E9ho vybaven\u00ED, tedy p\u0159\u00EDtomnosti \u010Di nep\u0159\u00EDtomnosti gen\u016F k\u00F3duj\u00EDc\u00EDch peptidoglycan hydrolasy, a z\u00E1rove\u0148 alespo\u0148 \u010D\u00E1ste\u010Dn\u011B objasnit p\u0159\u00ED\u010Dinu rozd\u00EDl\u016F v autol\u00FDze mezi jednotliv\u00FDmi kmeny. U sb\u00EDrky 25 kmen\u016F Lb.helveticus poch\u00E1zej\u00EDc\u00EDch z r\u016Fzn\u00FDch"@cs . . . "Plockov\u00E1, Milada" . "Vysok\u00E1 \u0161kola chemicko-technologick\u00E1 v Praze" . "High autolytic Lactobacillus helveticus strain selection using detection of peptidoglycan hydrolases genes"@en . "5"^^ . "4"^^ . . "Celost\u00E1tn\u00ED p\u0159ehl\u00EDdky s\u00FDr\u016F 2010 - V\u00FDsledky p\u0159ehl\u00EDdek a sborn\u00EDk p\u0159edn\u00E1\u0161ek konference Ml\u00E9ko a s\u00FDry" . "978-80-7080-760-6" . "V\u00FDb\u011Br vysoko-autolytick\u00FDch kmen\u016F Lactobacillus helveticus pomoc\u00ED detekce gen\u016F k\u00F3duj\u00EDc\u00EDch peptidoglykan-hydrolasy" . "22330" . "Ondr\u00E1\u010Dkov\u00E1, Iva" . . . . "Praha" . .