Enterotoxigenic and nontoxigenic Bacteroides fragilis strains isolated in Brazil.
The presence of enterotoxigenic Bacteroides fragilis and nontoxigenic B. fragilis (NTBF) among 109 strains isolated from 1980-2008 in Brazil were investigated by PCR. One strain, representing 0.9% of the total analyzed strains, harbored the bft gene which was identified as bft-1 isoform based on PCR-RFLP and sequencing. Forty-nine strains (44.9%) exhibited the NTBF pattern III which possesses the flanking region required for pathogenicity island acquisition in which the bft gene is codified. These data reinforce the potential of B. fragilis as an emerging enteropathogen in our country.
Miranda
Karla R
KR
Laboratório de Biologia de Anaeróbios, Departamento de Microbiologia Médica, Instituto de Microbiologia Prof. Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil. karlarodr@yahoo.com.br
Dias
Mariana F
MF
Guimarães
Priscilla L S
PL
Boente
Renata F
RF
Pauer
Heidi
H
Ramos
Priscila Z
PZ
Falcão
Laís S
LS
Ferreira
Eliane de O
Ede O
Balassiano
Ilana T
IT
Ferreira
Livia Q
LQ
Santos-Filho
Joaquim dos
Jd
Paula
Geraldo R de
GR
Antunes
Eduardo N F
EN
Avelar
Katia E S
KE
Domingues
Regina M C P
RM
D001441:Bacteroides fragilis / Q000145:classification / Q000235:genetics* / Q000472:pathogenicity; D001938:Brazil; D004768:Enterotoxins / Q000096:biosynthesis*; D005798:Genes, Bacterial / Q000235:genetics*; D006801:Humans; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length
D004768:Enterotoxins