Decreased UV Light Resistance of Spores of 'Bacillus subtilis' Strains Deficient in Pyrimidine Dimer Repair and Small, Acid-Soluble Spore Proteins

摘要

Loss of small, acid-soluble spore protein alpha reduced spore UV resistance 30- to 50-fold in Bacillus subtilis strains deficient in pyrimidine dimer repair, but gave only a 5- to 8-fold reduction in UV resistance in repair-proficient strains. However, both repair-proficient and -deficient spores lacking this protein had identical heat and gamma radiation resistance.