2015
Determinants encoding fimbriae type 1 in fecal Escherichia coli are associated with increased frequency of bacteriocinogeny
ŠTAUDOVÁ, Barbora; Lenka MICENKOVÁ; Juraj BOSÁK; Kristýna HRAZDILOVÁ; Eva SLANINKOVÁ et al.Základní údaje
Originální název
Determinants encoding fimbriae type 1 in fecal Escherichia coli are associated with increased frequency of bacteriocinogeny
Autoři
ŠTAUDOVÁ, Barbora; Lenka MICENKOVÁ; Juraj BOSÁK; Kristýna HRAZDILOVÁ; Eva SLANINKOVÁ; Martin VRBA; Alena ŠEVČÍKOVÁ; Darina KOHOUTOVÁ; Vladana WOZNICOVÁ; Jan BUREŠ a David ŠMAJS
Vydání
BMC Microbiology, London, BioMed Central, 2015, 1471-2180
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.581
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/15:00087463
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Escherichia coli; Colicin; Microcin; Bacteriocin; Type 1 fimbriae; Phylogenetic group
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 11. 2015 15:52, Soňa Böhmová
Anotace
V originále
Background: To screen whether E. coli strains encoding type 1 fimbriae, isolated from fecal microflora, produce bacteriocins more often relative to fimA-negative E. coli strains of similar origin. Methods: PCR assays were used to detect presence of genes encoding 30 bacteriocin determinants (23 colicin-and 7 microcin-encoding genes) and 18 virulence determinants in 579 E. coli strains of human and animal origin isolated from hospitals and animal facilities in the Czech and Slovak Republic. E. coli strains were also classified into phylogroups (A, B1, B2 and D). Results: fimA-negative E. coli strains (defined as those possessing none of the 18 tested virulence determinants) were compared to fimA-positive E. coli strains (possessing fimA as the only detected virulence determinant). Strains with identified bacteriocin genes were more commonly found among fimA-positive E. coli strains (35.6 %) compared to fimA-negative E. coli strains (21.9 %, p < 0.01) and this was true for both colicin and microcin determinants (p = 0.02 and p < 0.01, respectively). In addition, an increased number of strains encoding colicin E1 were found among fimA-positive E. coli strains (p < 0.01). Conclusions: fimA-positive E. coli strains produced bacteriocins (colicins and microcins) more often compared to fimA-negative strains of similar origin. Since type 1 fimbriae of E. coli have been shown to mediate adhesion to epithelial host cells and help colonize the intestines, bacteriocin synthesis appears to be an additional feature of colonizing E. coli strains.
Návaznosti
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