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Growth curves for Emiliania huxleyi on addition of trace metals, the EhV86 Coccolithovirus, and a combination of metals and EhV86 Coccolithovirus. (A) Cu and (B) Cd. Circles: control, inverted triangles: +virus, squares: +metal, diamonds: +metal + virus. Errors were calculated from the ranges observed for duplicate determinations of cell counts.
