Fig. 1: Lon protease derived from dead bacteria is required for nutrient recycling.
From: Bacteria encode post-mortem protein catabolism that enables altruistic nutrient recycling
a Plot of the change in cell density for E. coli BW25113 grown at 37 °C in M9/1% (v/v) glycerol media for 20 hrs against varying addition of casein hydrolysate (n = 6, mean ± 95% C.I.). b Plot of the change in cell density of E. coli BW25113 grown at 37 °C in M9/1% (v/v) glycerol media for 20 hrs in the presence or absence of lysate derived from the indicated E. coli strains (Lon-null, n = 9; BL21, n = 8; OmpT-null, WT, H2O, n = 10; mean ± 95% C.I., p values - one-way ANOVA with post hoc Tukey’s multiple comparisons test, F (DFn = 4, DFd = 42) = 100.3). WT vs Lon-null, WT vs BL21, and WT vs H2O p < 0.0001; WT vs OmpT-null p = 0.9788; Lon-null vs H2O p = 0.056. Source data are provided as a Source Data file.
