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Microscopic images of L. aerocolonigenes (A) without and (B, C) with glass microparticle addition (10 g L-1, x50 = 7.9 and 30.5 µm) and (D–F) of pellet slices of the same microparticle setup. Here, black lines and circles are air bubbles enclosed in the sectioning medium. Dark areas in the pellets are incorporated glass microparticles.
