Francoeur, S. N. University of Alabama, sfrancoe@biology.as.ua.edu
Espeland, E. N. Univeristy of Alabama, eespelan@biology.as.ua.edu
Wetzel, R. G. University of Alabama, rwetzel@biology.as.ua.edu

 
MOLECULAR FLUX IN PERIPHYTON COMMUNITIES: COUPLING STRUCTURE TO FUNCTION
 
Flux of nutrients from the external environment to organisms within biofilms is critical for the survival and growth of these communities. Rates of such fluxes can regulate rates of community biomass growth. Scanning confocal laser microscopy (SCLM) allows artifact-free, three-dimensional imaging of biofilm structure, and direct quantification of the transport rates of fluorescent molecules through the biofilm. Studies of bacterial biofilms have revealed that the physical structure of biofilms (i.e., the extent to which open channels and conduits permeate the biofilm) can influence the rates of molecular transport in such communities. The influence of physical structural characteristics on flux rates was examined in compact, mucilaginous, lotic communites and loose, flocculant lentic biofilm communities by comparing flux rates of conservative fluorescent tracer molecules.
 
Day: Tuesday, Feb. 2
Time: Poster
Location: Sweeney Center
 
Code: SS17TU0433S