568 



BACTERIOPHAGES 



5-Aminoacridine, effect on bacterio- 

 phage reproduction, 279 



/^-Aminobenzoic acid, as growth factor 

 for bacteria and bacterio- 

 phages, 277 



Amino groups, in adsorption of coli- 

 phageTl, 151 



Aminomethane sulfonic acid, effect on 

 bacteriophage reproduction, 

 273, 274 



6-Aminonicotinic acid, effect on 



bacteriophage reproduction, 

 278 



Ammonium ion, effect on adsorption 

 of bacteriophage, 141 



Amylase, in coliphage WLL, 238 



Anthranilic acid, as growth factor 

 for bacteriophages, 274 



Antibacterial sera, effect on colicin ad- 

 sorption, 385 



Antibiotic action, of bacteriophages, 2, 

 125 



Antibiotics, effect on reproduction of 

 bacteriophages, 284, 285 



Antibody-blocking components, in 

 phage-free filtrates, 107-9 



Antigenicity, of bacteriophages, 97- 

 119 

 mutations affecting, 305, 306, 



318, 425 

 as taxonomic criterion, 422-26, 

 431 

 of colicins, 381, 384, 385, 393 



Antigens, bacterial, composition, 156- 

 59 

 effect on adsorption of bacterio- 

 phages, 152-59 

 effect on sensitivity of bacteria to 

 bacteriophages, 123, 124, 398, 

 399, 409 

 phage head, as taxonomic criteria, 

 425, 426 



phage tail, 186, 425 



in assay of vegetative phage, 33 

 Antiphage sera, effect on bacterio- 

 phages, 101-7, 109-19, 142, 

 146, 154, 155, 296 

 preparation and uses, 98, 99, 461, 



466, 484, 485 

 as taxonomic criterion for bacterio- 

 phages, 423-25 

 L-Arabinose, in typing of S. typhi 



strains, 396 

 Arginase, in coliphage WLL, 238 

 Arginine, in coliphages, 90 

 Arrhenius constant (s), of cohphage 

 T5,51 

 definition, 439 



for heat inactivation of bacterio- 

 phages, 57 

 Arsenite, effect on bacteriophages, 272 

 Ascorbic acid, effect on irradiation of 



bacteriophages, 75 

 Aspartic acid, in cohphages, 90 

 Assay, of antiphage sera, 463, 464 

 of bacterial hosts, 449, 450 

 of bacteriophages, 27-34, 450-54 

 ATPase, see Adenosine triphosphatase 

 Aureomycin, effect on latent period 

 of bacteriophages. 170, 285 

 8-Azaguanine, in RNA of E. coli B, 



284 

 7-Azatryptophan, in proteins of 

 bacteria and coliphage T2, 

 284 

 Azide, effect on bacteriophages, 272, 

 273 



B 



Bacillus anthracis, sensitivity to mega- 

 cin, 391 



Bacillus cereus, effect of infection on, 

 197 



Bacillus cereus phage, electron micro- 

 graph, 37 



