Among the strains tested, spores of Bacillus cereus and Bacillus subtilis, Penicillium were more resistant to radiation, Pseudomonas fluorescens and Pseudomonas aeruginosa were more sensitive to radiation. 供试菌株中蜡状芽孢杆菌及枯草芽孢杆菌芽孢、青霉孢子对辐照的抗性较强,荧光假单胞菌和铜绿假单胞菌对辐照较为敏感。