SUBJECT INDEX 



585 



Papain, in coliphage WLL, 238 



in reactivation of neutralized phage, 

 101,102,461 

 Partial exclusion, see Exclusion, par- 

 tial 

 Pasteurella phage, growth factors, 235 

 Pasteur ella species, 121 

 Pasteurella pestis, effect of infection on, 



197 

 Pasteurella pestis phage, host range, 122 



mutants, 298, 299 

 Pectin, effect on bacteriophage ad- 

 sorption, 269, 270 

 Penetration, of bacteriophage into 

 host cell, 17, 18, 161-68 

 inhibition, 270, 271 

 Penicillin, effect on bacteria, 246. 266, 

 284, 285 

 effect on latent period of bacterio- 

 phages, 170 

 Pentamidine, effect on bacteria, 266 

 effect on reproduction of bacterio- 

 phages, 285 

 Peptone, effect on adsorption of bac- 

 teriophage, 41, 55 

 Periodate, effect on adsorption of bac- 

 teriophage, 152 

 Permanganate, effect on bacterio- 

 phages, 54 

 Peroxides, see also Hydrogen peroxide 

 effect on bacteriophages, 54, 77, 79, 

 effect on lysogenic bacteria, 9 

 organic, effect on lysogenic bac- 

 teria, 373 

 pH, effect on bacteriophages, 50, 146, 

 150, 151 

 as taxonomic criterion, 427 

 effect on colicin production, 388 

 effect on surface inactivation of coli ■ 

 phages, 55, 56 

 Phage, see Bacteriophage 

 Phage-inhibiting agent (PIA). 103 



effect on adsorption of bacterio- 

 phages, 152-59 

 Phagolesin, effect on bacteriophage 



reproduction, 285 

 Phenocopies, of bacteriophages, 294 

 Phenol, effect on adsorption of bac- 

 teriophage, 151, 152 

 Phenotype, definition, 290, 291, 441 

 Phenotypic mixing, in bacteriophages, 



132,133,317,354 

 Phenotypic modification, in bacterio- 

 phages, 132-35, 291-97 

 definition, 132,291 

 in S. typhi phage Vi II, 399, 403, 



406, 407,411 

 of staphylococcal typing phages, 

 418 

 Phenylalanine, in coliphages, 90 

 effect on adsorption of coliphages, 



143 

 effect on irradiation of bacterio- 

 phages, 75 

 Phosphatases, in bacteriophages, 238, 



239 

 Phosphate, effect on heat inactivation 

 of coliphage T5, 58 

 effect on proflavine inhibition of 

 bacteriophage reproduction, 

 281 

 Phosphine GRN, effect on bacterio- 

 phage reproduction, 279 

 Phosphorus, assimilation in bacterio- 

 phage reproduction, 257-62 

 labeled, effect on bacteriophages, 

 80-82, 180-82,362,363 

 in study of bacterial changes fol- 

 lowing infection, 166, 167 

 in study of bacteriophage pene- 

 tration into host cell, 17, 161- 

 63 

 in study of DNA synthesis in bac- 

 teriophages, 248, 257-61 

 in study of doughnuts, 184 



