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Survival of E. coli K-12 (▪), S. algae (•), S. putrefaciens 200 (□), and S. oneidensis strain MR-4 (▴), strain DLM-7 (ο), and strain MR-1 (Δ) after UVC irradiation. Plates used for measuring CFU were LB for E. coli K-12, marine agar for S. algae, and TSA for others. Each datum represents the mean (± the standard error of the mean) from three replicates.
