Figure 3

Microscope images of Klebsormidium sp. cultivated at 20°C (A,B) and 30°C (C,D) and starved of nitrogen. Microscope images of Hantzschia sp. cultivated at 30°C with sufficient nitrogen (E,F) and starved of nitrogen (G,H). Stained with nile red. Bar = 20 μm.