INVESTIGADORES
ALBARRACIN virginia Helena
congresos y reuniones científicas
Título:
ZeoBioFilms: Exploring Mineral-Microbe Interactions Using AFM and SEM.
Autor/es:
CASTRO, M.; SMITH, R.; ANDERSON, M.; ESCOBAR, A.,; SCHMIDT, W; FARIAS M.E.; ALBARRACÍN V. H.
Lugar:
Sacramento
Reunión:
Conferencia; GOLDSCHMIDT CONFERENCE; 2014
Resumen:
Zeolites as Suitable Materials to Support Life
The interaction of zeolites and bacteria forming biofilms
has been reported in soils (bio-fertilizer) [1]. Here, we present
preliminary results on biofilm formation by extremophilic
bacteria[2, 3] on well characterized surfaces of synthetic
zeolitic materials [4] (ZeoBioFilms) using AFM and SEM*.
Results and discussion
BioSEM follows the steps of biofilm formation by
extremophilic bacteria isolated from High Altitud Andean
Lakes (HAAL): bacteria recognice, attach and grow to form a
mature biofilm (Fig. 1B-C). In addition, AFM detects the
surface modification after biofilm removal (Fig. 1A-D). We
believe that a comprehensive understanding of the interaction
mechanism can lead to biotechnological applications and shed
light on evolution of life and astrobiology [5].
[1] Leggo et al (2006) Science of the total Environment 363, 1-
10. [2] Albarracin et al (2012) Orig. Life Evol. Biosphe. 42,
201-221. [3] Belfiore et al Extremophiles DOI:
10.1007/s00792-013-0523-y. [4] Cubillas et al (2009) Crystal
Growth & Design 9, 4041-4050. [5] Farias et al (2013) PLoS
One. 8 e53497.