INVESTIGADORES
FERRERO Marcela Alejandra
congresos y reuniones científicas
Título:
Stimulation of biofilm formation by hydrocarbon degrading strains in the presence of squamocin
Autor/es:
RODRIGUEZ, A; RIVA MERCADAL, JP; CARTAGENA, E; FERRERO, M; NESKE, A; BARDÓN, A
Lugar:
Tafi del Valle
Reunión:
Congreso; XXIV ANNUAL SCIENTIFIC MEETING; 2008
Institución organizadora:
TUCUMAN BIOLOGY ASSOCIATION
Resumen:
Previous studies have shown that annonaceous acetogenins
(ACGs) stimulates biofilm formation in a P. aeruginosa strain of
clinical origin.
ACG squamocin is structurally related to the γ-lactones, a family
of bacterial autoinducers that play an essential role in the quorum
sensing mechanism to coordinate the biofilm maturation. In this
work, 37 polycyclic aromatic hydrocarbon degrading strains were
tested for their attachment capability and biofilm development on
polystyrene microplates using squamocin as a biofilm inducer.
Out of the 37 strains tested, 22% showed natural formation of bacterial
biofilms that increased in the presence of squamocin, in some
cases up to 40%. In the remaining 12 strains over 60% showed an
increase in biofilm production and were therefore selected for future
studies.