Figure 8.
Influx assay of sodium ions into B anthracis cells. SBFI-AM was added to AP422 cells in Locke's buffer (0 s); then, cells were excited at 340/380 nm, and the fluorescence emission was measured at 505 nm to establish a baseline signal. At approximately 50 s (arrow point), 4 μg/mL daptomycin was added.