Fig. 1.

C. reinhardtii forms gloeocapsoids in contact with sublethal concentrations of azalomycin F. (A) C. reinhardtii in TAP medium at pH 8 treated with or without 5 μg ⋅ mL⁻¹ azalomycin F. (B) C. reinhardtii at pH 7 treated with or without 3 μg ⋅ mL⁻¹ azalomycin F. (Scale bars: 20 μm.) (C) Light microscopy picture of C. reinhardtii gloeocapsoids. (D) Light microscopy picture of vegetative cells of G. membranacea. (Scale bars: 10 μm.)