FIG 2.

(a) Decay of E11 in the bacterial lake water fraction (with 5 × 10⁶ bacterial cells ml⁻¹ at t₀) and the eukaryotic lake water fraction (with 6 × 10⁴ protist cells ml⁻¹ and 1 × 10⁶ bacterial cells ml⁻¹ at t₀). Sterile lake water was used as a negative control. (b) Decay of E11 in the bacterial seawater fraction, the eukaryotic seawater fraction, and sterile seawater from the Atlantic Ocean. The concentrations of bacterial and eukaryotic cells in seawater were not measured. All experiments were conducted in duplicate at room temperature.