FIGURE 3.
(a) Serratia marcescens and Micrococcus luteus agar art before fixation. (b) Following fixation of 2.5% glutaraldehyde for 5 min. (c) Preserved agar art 24 h after fixation with glutaraldehyde. (d) Preserved agar art 24 h after fixation with glutaraldehyde and addition of sodium metabisulfite