Fig. 6.

B. subtilis possesses a Spo0A-dependent immunity to some Bacillus species. (A) B. megaterium and B. vallismortis colonies overlaid with embedded agar lawns of either wild-type (WT) or ΔSpo0A B. subtilis. B. megaterium does not kill either B. subtilis strain; B. vallismortis kills ΔSpo0A but not WT B. subtilis. (B) Graph showing quantification of the average difference in the halo size between the ΔSpo0A and WT overlays. At least three independent experiments were averaged, and each experiment was performed in duplicate. Error bars show SEM.