412 



GENERAL INDEX 



Phage of bacteria, 163, 165, 166, 226, 



250 

 Phenazine, 181, 182 

 Phenol, 69, 70, 82, 222 



coefficient, 70 

 Phthiocol, 105, 174, 329 

 Phycomycetes, 131, 132 

 Physiologist, field for, 324-325 

 Physiology of bacteria, effect of anti- 

 biotic agents, 87, 253-255, 325 

 Pigment formation and antagonism, 



42-43, 95, 99 

 Pigments, 49, 108 

 Pinosylvin, 330 

 Plant viruses, 167 

 Plants 



agents pathogenic to, 18, 300— 301 

 antibacterial agents produced by, 



216-217, 225, 330 

 bacteria pathogenic to, 93 

 bactericidal action of juice, 216 

 diseases of, control, 300-313 

 by fungi, 253, 305-310 

 by use of antagonistic microorgan- 

 isms, 93, 304-313 

 fungi pathogenic to, 302-313 

 influence on microbial population of 

 soil, 5, 8 

 Plate culture method, 6-7 

 Pneumococci as antagonists, 104, 105 

 Pneumonia organism, survival, 28 

 Poliomyelitis, 167 

 Polypeptides, 185-189 

 Polyporin, 146, 174, 178, 213, 330 

 Polysaccharidases, 183-184, 296-297 

 Potato scab, 128-129, 307 

 Precursor for streptomycin, 68, 125 

 Proactinomycin, 119, 126, 174, 242, 

 320, 329 

 chemical nature, 200 

 compared with actinomycin, 126 

 Prodigiosin, 174, 181, 329 

 Production of antibiotic substances, 

 methods of growing organisms for, 

 64-69 

 Protamine, 228, 254 

 Protoanemonin, 217, 330 

 Protozoa 



in manure and urine, 21—22 

 in soil, 6, 9, 42 



Protozoa {cont.) 



relation to bacteria, 22, 32, 154-157 



relation to fungi, 158 

 Protozoan theory of soil fertility, 155 

 Pseudodiphtheria, 48 

 Puberulic acid, 174, 212—213, 329 

 Puberulonic acid, 174, 329 

 Pure cultures, 12-13, 86 

 Pyo-compounds, 98, 1 74, 183, 320, 



329 

 Pyocyanase, 51, 70, 85, 97, 174, 258, 

 314, 319, 320, 329 



antiluminescent activity, 82 



bactericidal action, 246 



chemical nature, 98, 174, 180 



effect on bacteria, 82, 219, 222, 250 



isolation, 1 78-1 80 



practical value, 98, 262, 266, 287 



toxicity, 298 



virus Inactivation, 164 

 Pyocyaneus organism as antagonist, 95, 



Pyocyanic acid, i 79 

 Pyocyanin, 70, 98, 153, 174, 298, 

 314, 319, 320, 329 



antiluminescent activity, 82 



chemical nature, 1 74, 178, 1 8 1, 1 82 



effect on bacteria, 82, 98, 219, 222- 

 223, 249 



inhibitory action, 225 



isolation, 178-180 



structural formula, 182 



toxicity, 298 

 Pyolipic acid, 98, 175, 179, 329 

 Pyoxanthose, I 80 

 Pyrogenic substances, 239 



Quinine, 170, 209-210, 284 

 Quinones, 245 



effect on bacteria, 22, 227, 246-247 



Radiations, 51 



Repressive antagonism, 48 



Resistance of bacteria to antibiotics, 



257-259, 270 

 Respiration of bacteria, 229 

 Respiratory infections, 275 

 Rhizosphere, 5, 313 

 Rickettsiae, affected by penicillin, 166 

 Root-inhabiting fungi, 301 

 Rust spores, inhibition of, 152 



