Figure 1.
Survival of B. subtilis spores deficient in DSB recognition and end-processing after X-ray and UHV treatment. (A) X-ray dose-dependent survival of wt (filled square), ΔrecA (filled triangle) and ΔrecN mutant (filled diamond) spores. The wt and ΔrecA mutant spores were used as controls. (B) Viability (white column) and survival (grey column) after 7 days UHV exposure of wt, ΔrecA mutant and ΔrecN mutant spores. (C) X-ray dose-dependent survival of wt (filled square), ΔrecA (filled triangle), addA5 (open diamond), addA5 addB72 (cross), ΔrecJ (filled diamond), ΔrecQ (filled circle), ΔrecS (asterisk) or addA5 ΔrecJ (open circle) spores. (D) Untreated (white column) and treated (grey column) after 7 days UHV exposure of wt, ΔrecA, addA5, addA5 addB72, ΔrecJ, ΔrecQ, ΔrecS or addA5 ΔrecJ mutant spores.