Figure 2.

Growth on eDNA as a C, N and P source in culture flasks. H. volcanii cultures were grown in Hv-min derivatives deficient in C, N, or P (NP, CP, CN, respectively) with and without eDNA supplementation. Bars represent increase in optical density after 60 h of incubation in unbaffled (solid lines) and baffled (dashed lines) flasks. A photograph of a representative replicate culture flask is also shown, with characteristic red color of halobacterial cells in dense cultures in the CNP control and CN + eDNA flasks. Error bars represent standard deviation of replicate cultures.