Fig. 3.

Molecular and physiological changes of lipid synthesis in C. reinhardtii exposed to silver for 1 h. Regulation of proteins (A) and lipid bodies containing precursors of lipids stained green with Nile red (B). The chloroplasts autoflourescence is seen as red. (Scale bars in B, 10 µm.) For the molecular responses, algae exposed to 500 nM Ag⁺ were not analyzed (see Methods).