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  Surname Name Title Thesis status   Supervisors Reviewers Type of thesis Date of def. Title
Student Type of thesis - - - - - - - - - -
Item shown in detail Pirochtová Includes the selected person into the timetable overlap calculation. Veronika The influence of lactobacilli on biofilm positive bacteria The influence of lactobacilli on biofilm positive bacteria Thesis finished and defended successfully (DUO).   Pleva Pavel Janalíková Magda Bachelor's thesis 1686520800000 12.06.2023 The influence of lactobacilli on biofilm positive bacteria Thesis finished and defended successfully (DUO).
Veronika Pirochtová Bachelor's thesis 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX 0XX

Thesis info Vliv laktobacilů na biofilm pozitivní bakterie

  • Basic data
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Name Pirochtová Veronika Includes the selected person into the timetable overlap calculation.
Acad. Yr. 2022/2023
Assigning department TUTP
Date of defence Jun 12, 2023
Type of thesis Bachelor's thesis
Thesis status Thesis finished and defended successfully (DUO). Thesis finished and defended successfully (DUO).
Completeness of mandatory entries - All mandatory fields for this Thesis are filled in.
Main topic Vliv laktobacilů na biofilm pozitivní bakterie
Main topic in English Effect of Lactobacillus on Biofilm Forming bacteria
Title according to student Vliv laktobacilů na biofilm pozitivní bakterie
English title as given by the student The influence of lactobacilli on biofilm positive bacteria
Parallel name -
Subtitle -
Thesis supervisor Pleva Pavel, Ing. Ph.D.
External examiner Janalíková Magda, doc. Mgr. Ph.D.
Annotation Biofilm vzniká přichycením mikroorganismů k povrchu a následnou tvorbou komplexního společenstva. Některé laktobacily produkují bakteriociny, které mohou biofilm inhibovat. Teoretická části pojednává o testovaných bakteriích včetně laktobacilů, tvorbě biofilmu a bakteriocinech. Cílem praktické části bylo zjistit vliv laktobacilů na biofilm pozitivní bakterie. Podle výsledků pilotní studie bylo vybráno pět laktobacilů, u nichž byl testován vliv na růst biofilmu u biofilm pozitivních bakterií. Tvorba biofilmu Bacillus subtilis CCM 2216 byla inhibována všemi laktobacily vyjma Lacticaseibacillus paracasei tolerans CCDM 832. V případě Staphylococcus aureus CCM 885 došlo k omezení růstu biofilmu vlivem Lactiplantibacillus plantarum CCDM 196, Lacticaseibacillus casei casei CCDM 198 a Lacticaseibacillus casei CCDM 422. U Stenotrophomonas maltophilia CCM 1640 byl růst biofilmu inhibován všemi laktobacily. V pilotní studií byl zkoumán vliv bakteriocinů a jejich antimikrobiální aktivita na vybrané laktobacily a bakterie. Studií bylo zjištěno, že největší účinnost bakteriocinů mezi laktobacily měl kmen Latilactobacillus sakei sakei CCDM 717. Oproti tomu kmen Lactiplantibacillus plantarum CCDM 375 a kmen Lactiplantibacillus plantarum CCDM 381 neprokázaly inhibici u žádného testovaného laktobacilu. Na sledovaných biofilm pozitivních bakteriích, Bacillus subtilis CCM 2216 a Staphylococcues aureus CCM 885, byly antibakteriální a antibiofilm účinky prokázány všemi laktobacily vyjma Latilactobacillus sakei sakei CCDM 717. Stenotrophomonas maltophilia CCM 1640 byla inhibována pouze kmenem Lacticaseibacillus paracasei tolerans CCDM 832.
Annotation in English Biofilm is formed by the attachment of microorganisms to the surface and the subsequent formation of a complex community. Some lactobacilli produce bacteriocins that can inhibit the biofilm. The theoretical section discusses the tested bacteria including lactobacilli, biofilm formation and bacteriocins. The aim of the practical part was to investigate the effect of lactobacilli on biofilm positive bacteria. According to the results of the pilot study, five lactobacilli were selected and tested for their effect on biofilm growth in biofilm positive bacteria. Biofilm formation by Bacillus subtilis CCM 2216 was inhibited by all lactobacilli except Lacticaseibacillus paracasei tolerans CCDM 832. For Staphylococcus aureus CCM 885, biofilm growth was inhibited by Lactiplantibacillus plantarum CCDM 196, Lacticaseibacillus casei CCDM 198 and Lacticaseibacillus casei CCDM 422. For Stenotrophomonas maltophilia CCM 1640, biofilm growth was inhibited by all lactobacilli. The effect of bacteriocins and their antimicrobial activity on selected lactobacilli and bacteria was investigated in a pilot study. The study found that Latilactobacillus sakei sakei CCDM 717 had the highest bacteriocin efficiency among lactobacilli. In contrast, Lactiplantibacillus plantarum CCDM 375 and Lactiplantibacillus plantarum CCDM 381 did not show inhibition in any of the tested lactobacilli. On the tested biofilm positive bacteria, Bacillus subtilis CCM 2216 and Staphylococcues aureus CCM 885, antibacterial and antibiofilm effects were proven by all lactobacilli except Latilactobacillus sakei sakei CCDM 717. Stenotrophomonas maltophilia CCM 1640 was inhibited only by Lacticaseibacillus paracasei tolerans CCDM 832.
Keywords biofilm, bakteriociny, laktobacily, bakterie, inhibice
Keywords in English biofilm, bacteriocins, lactobacillus, bacteria, inhibition
Length of the covering note 44 s. (64 936)
Language CZ
Annotation
Biofilm vzniká přichycením mikroorganismů k povrchu a následnou tvorbou komplexního společenstva. Některé laktobacily produkují bakteriociny, které mohou biofilm inhibovat. Teoretická části pojednává o testovaných bakteriích včetně laktobacilů, tvorbě biofilmu a bakteriocinech. Cílem praktické části bylo zjistit vliv laktobacilů na biofilm pozitivní bakterie. Podle výsledků pilotní studie bylo vybráno pět laktobacilů, u nichž byl testován vliv na růst biofilmu u biofilm pozitivních bakterií. Tvorba biofilmu Bacillus subtilis CCM 2216 byla inhibována všemi laktobacily vyjma Lacticaseibacillus paracasei tolerans CCDM 832. V případě Staphylococcus aureus CCM 885 došlo k omezení růstu biofilmu vlivem Lactiplantibacillus plantarum CCDM 196, Lacticaseibacillus casei casei CCDM 198 a Lacticaseibacillus casei CCDM 422. U Stenotrophomonas maltophilia CCM 1640 byl růst biofilmu inhibován všemi laktobacily. V pilotní studií byl zkoumán vliv bakteriocinů a jejich antimikrobiální aktivita na vybrané laktobacily a bakterie. Studií bylo zjištěno, že největší účinnost bakteriocinů mezi laktobacily měl kmen Latilactobacillus sakei sakei CCDM 717. Oproti tomu kmen Lactiplantibacillus plantarum CCDM 375 a kmen Lactiplantibacillus plantarum CCDM 381 neprokázaly inhibici u žádného testovaného laktobacilu. Na sledovaných biofilm pozitivních bakteriích, Bacillus subtilis CCM 2216 a Staphylococcues aureus CCM 885, byly antibakteriální a antibiofilm účinky prokázány všemi laktobacily vyjma Latilactobacillus sakei sakei CCDM 717. Stenotrophomonas maltophilia CCM 1640 byla inhibována pouze kmenem Lacticaseibacillus paracasei tolerans CCDM 832.
Annotation in English
Biofilm is formed by the attachment of microorganisms to the surface and the subsequent formation of a complex community. Some lactobacilli produce bacteriocins that can inhibit the biofilm. The theoretical section discusses the tested bacteria including lactobacilli, biofilm formation and bacteriocins. The aim of the practical part was to investigate the effect of lactobacilli on biofilm positive bacteria. According to the results of the pilot study, five lactobacilli were selected and tested for their effect on biofilm growth in biofilm positive bacteria. Biofilm formation by Bacillus subtilis CCM 2216 was inhibited by all lactobacilli except Lacticaseibacillus paracasei tolerans CCDM 832. For Staphylococcus aureus CCM 885, biofilm growth was inhibited by Lactiplantibacillus plantarum CCDM 196, Lacticaseibacillus casei CCDM 198 and Lacticaseibacillus casei CCDM 422. For Stenotrophomonas maltophilia CCM 1640, biofilm growth was inhibited by all lactobacilli. The effect of bacteriocins and their antimicrobial activity on selected lactobacilli and bacteria was investigated in a pilot study. The study found that Latilactobacillus sakei sakei CCDM 717 had the highest bacteriocin efficiency among lactobacilli. In contrast, Lactiplantibacillus plantarum CCDM 375 and Lactiplantibacillus plantarum CCDM 381 did not show inhibition in any of the tested lactobacilli. On the tested biofilm positive bacteria, Bacillus subtilis CCM 2216 and Staphylococcues aureus CCM 885, antibacterial and antibiofilm effects were proven by all lactobacilli except Latilactobacillus sakei sakei CCDM 717. Stenotrophomonas maltophilia CCM 1640 was inhibited only by Lacticaseibacillus paracasei tolerans CCDM 832.
Keywords
biofilm, bakteriociny, laktobacily, bakterie, inhibice
Keywords in English
biofilm, bacteriocins, lactobacillus, bacteria, inhibition
Research Plan

I. Teoretická část

Charakteristika mikroorganizmů vyskytujících se při tvorbě biofilmů.

Biofilm.

II. Praktická část

Kultivační metody pro stanovení biofilm pozitivních bakterií.

Vliv laktobacilů na tvorbu biofilmů.

Vyhodnocení a zpracování výsledků.

Diskuze a formulace závěrů.

Research Plan

I. Teoretická část

Charakteristika mikroorganizmů vyskytujících se při tvorbě biofilmů.

Biofilm.

II. Praktická část

Kultivační metody pro stanovení biofilm pozitivních bakterií.

Vliv laktobacilů na tvorbu biofilmů.

Vyhodnocení a zpracování výsledků.

Diskuze a formulace závěrů.

Recommended resources \par[1] {A.N. Ramos, M.E. Sesto Cabral, M.E. Arena, C.F. Arrighi, A.A. Arroyo Aguilar, J.C. Valdez, Compounds from Lactobacillus plantarum culture supernatants with potential pro-healing and anti-pathogenic properties in skin chronic wounds. Pharmaceutical Biology, 53 (3) (2015), pp. 350-358} \par[2] {F.A. Sadiq, S. Flint, L. Yuan, Y. Li, T. Liu, G. He. Propensity for biofilm formation by aerobic mesophilic and thermophilic spore forming bacteria isolated from Chinese milk powders. International Journal of Food Microbiology, 262 (2017), pp. 89-98} \par[3] {HE, Yuanhui, Risu NA, Xiaoxi NIU, Bingbing XIAO a Huixia YANG. Lactobacillus rhamnosus and Lactobacillus casei Affect Various Stages of Gardnerella Species Biofilm Formation. Frontiers in Cellular and Infection Microbiology. 2021, 11. ISSN 2235-2988. Dostupné z: doi:10.3389/fcimb.2021.568178} \par[4] {ISHIKAWA, Karin H., Manuela R. BUENO, Dione KAWAMOTO, Maria R. L. SIMIONATO a Marcia P. A. MAYER. Lactobacilli postbiotics reduce biofilm formation and alter transcription of virulence genes of Aggregatibacter actinomycetemcomitans. Molecular Oral Microbiology. 2021, 36(1), 92-102. ISSN 2041-1006. Dostupné z: doi:10.1111/omi.12330}
Recommended resources
\par[1] {A.N. Ramos, M.E. Sesto Cabral, M.E. Arena, C.F. Arrighi, A.A. Arroyo Aguilar, J.C. Valdez, Compounds from Lactobacillus plantarum culture supernatants with potential pro-healing and anti-pathogenic properties in skin chronic wounds. Pharmaceutical Biology, 53 (3) (2015), pp. 350-358} \par[2] {F.A. Sadiq, S. Flint, L. Yuan, Y. Li, T. Liu, G. He. Propensity for biofilm formation by aerobic mesophilic and thermophilic spore forming bacteria isolated from Chinese milk powders. International Journal of Food Microbiology, 262 (2017), pp. 89-98} \par[3] {HE, Yuanhui, Risu NA, Xiaoxi NIU, Bingbing XIAO a Huixia YANG. Lactobacillus rhamnosus and Lactobacillus casei Affect Various Stages of Gardnerella Species Biofilm Formation. Frontiers in Cellular and Infection Microbiology. 2021, 11. ISSN 2235-2988. Dostupné z: doi:10.3389/fcimb.2021.568178} \par[4] {ISHIKAWA, Karin H., Manuela R. BUENO, Dione KAWAMOTO, Maria R. L. SIMIONATO a Marcia P. A. MAYER. Lactobacilli postbiotics reduce biofilm formation and alter transcription of virulence genes of Aggregatibacter actinomycetemcomitans. Molecular Oral Microbiology. 2021, 36(1), 92-102. ISSN 2041-1006. Dostupné z: doi:10.1111/omi.12330}
Týká se praxe No
Enclosed appendices -
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Taken from the library No
Full text of the thesis
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Reviewer's report
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