Fig. 3From: Living together in biofilms: the microbial cell factory and its biotechnological implications a Alginate beads (2 mm in diameter, see highlighted rectangle) in an erlenmeyer flask containing 50 ml of tryptic soy broth diluted 30-fold. (Photograph by M Berlanga) b Scanning electron micrograph of Halomonas immobilized cells after 24 h of incubation. (From [74], with permission). Arrow individual cell protruding from the bumps produced by the presence of microcolonies on the surface of the bead and about to detachBack to article page