 carrier bacillu subtili infect transduc bacteriophag sp10 bacteriophag sp10 infect bacillu subtili form carrier system infect bacteria rise infect organ success singl-coloni isol 60 spore deriv infect cultur yield clone produc phage spore retain abil produc phage treatment antiserum heat 80 hour' incub carrier spore nutrient broth yield cultur 10 infect center bacterium cultiv infect organ medium sp10 antiserum lead loss phage loss immun phage infect dna densiti characterist viral dna detect infect bacteria extract infect bacteria phage-induc deoxyribonucleas activ attack phage bacteri dna vitro phage-bacteri complex best describ carrier dna phage subtili chemic enzymat prepar complementari viru rna homolog bacteri dna lack homolog transduc phage dna dna host failur form lysogen relationship reinforc previou conclus transduc bacteri dna incorpor sp10 viru particl recombin viral bacteri dna 