530 



SUBJECT INDEX 



Radiation, implications, 147 

 induction of saltations, 145-146 

 inhibitory effects, 138-143 

 luminescence, 137-138 

 mode of action, 147 

 morphogenic reactions, 125-129 

 phototropism, 129-137 

 stimulatory effects, 143-144 

 Radiculites retictdatus, 487, 489 

 Radioactive carbon, 19 

 Radioactivity, 476 

 Radish, 398' 

 Raffinase, 40, 46, 41 

 Raffinose, 42 

 Ramigenic acid, 88 

 Ramularites oblongisporus, 486 

 Ranunculaceae, 298 

 Ranunculus ficariae, 313 

 "Raquette cells," 380, 381 

 Rats, 367 



Raulin's solution, 2, 79 

 Ravenelia, 408 

 cassiaecola, 407 

 epiphylla, 407 

 opaca, 407 

 Ravenelin, 85 



Reaction of substrate, 151-164, 229- 

 230, 280 

 alkaline fungicides, 162-163 

 H+ concentration, meaning of, 

 152 

 measurement of, 153 

 implications, 163 

 pH, and enzymatic activity, 159 

 and growth, 155-157 

 and media, 157-158 

 and pigmentation, 159 

 and plant disease, 159-161 

 measurement of, 154-155 

 of fungus tissues, 158-159 

 significance of, 153-154 

 Recent Glacial period, 478 

 Recessive characters, 317 

 Reductases, 50 

 Relative humidity, 215, 218 

 Rennetase, 46, 41 

 Rennin, 40 

 Resins, 45 

 Resorcinol, 44, 45 

 Respiration, 53-68, 83 

 aerobic, mechanism, 58 

 anaerobic mechanism, 58-62 



Respiration, historical, 53-55 

 implications, 66, 61 

 inhibition, 65-66 



interrelations of aerobic and an- 

 aerobic, 57-58 

 respiratory quotient, 62-63, 117 

 respiratory systems, 63-64 

 respirometer techniques, 64-65 

 stimulation, 66 

 tvpes, 56-62 

 Respiratory enzymes, 11 

 Respiratory pigments, 58 

 Reticularia ly coper don, 211 

 Reticulotermes hesperus, 175 

 Rhamnus, 215 

 Rhinotrichum, 431, 444 

 Rhizidiomycetaceae, 461, 462 

 Rhiziua inflate, 190 

 Rhizoctoma, 4, 107, 109, 178, 303, 

 310, 437 

 lanuginosa, 304, 309 

 minor oides, 304 

 repens, 303-304 

 solani, 45, 99, 103, 116, 155, 161, 260, 



273, 276, 287, 296, 437 

 r ciolacea, 161 

 Rhizomorpha sigillariae, 485 

 Rhizomorphites 

 intertextus, 487 

 polymorphic, 487 

 Rhizophy ctis rosea, 34 

 Rhizophydium 

 codicola, 461 

 dicksonii, 460 

 polysiphoniae, 461, 472 

 Rhizopogon 

 luteolus, 312 

 roseolus, 312 

 Rhizopus, 16, 48, 86, 106, 107, 268, 

 280, 373, 431 

 arrhizus, 76, 77, 224 

 artocarpi, 224 

 chinensis, 16, 102, 224 

 delemar, 224 

 elegans, 16 

 japonicus, 16 

 microsporia, 224 



nigricans, 4, 5, 14, 33, 45, 50, 75, 

 77, 80, 82, 90, 104, 143, 156, 

 157, 223, 224, 225, 226, 229, 

 242, 255, 260, 281, 283, 399, 

 433, 453 



