SUBJECT INDEX 



597 



Hemophilus 



transforming principle, 45 



deoxyribonuclease inactivation and, 



414-415 

 inactivation and, 398, 407^08 

 photoreactivation and, 27 

 Herpes virus, 37, 103 



local lesion count assay of, 335 



pH, stability and, 389 



photodynamic inactivation of, 379 



phosphatase inactivation and, 415 



UV inactivation and, 374 

 Heterochromatin, 32 

 Heterozygosis, viruses and, 11 

 Hippuric acid 



synthesis of, 171 



viral inactivation by, 407 

 Histidine biosynthesis, 160 

 Histone, deoxyribonucleic acid and, 194 

 Holmes ribgrass virus, tobacco mosaic 



virus, mixed reconstitution of, 450-452 

 Homogeneity 



ultracentrifugation and, 261-263 



virus identification and, 297-299 

 Host-cell surface, viruses and, 11-12 

 Human urine mucoprotein, acetylneura- 



minic acid and, 23-24 

 Hydrogen peroxide, viral inactivation 



and, 409 

 Hydrolases 



phosphate transfer and, 154-155 



polysaccharide biosynthesis and, 165- 

 166 



T-even bacteriophage, particle pene- 

 tration and, 24 

 5-Hydroxymethyl cytosine 



bacteriophage, 5, 20-21, 192 

 analysis and, 467-470 

 5-Hydroxymethyl deoxycytidylic acid, 

 21 



5, 6, 7, 8-tetrahydrofolic acid and, 25 



lAA, see Indole acetic acid 



ID 5 0, see Infectivity end-point dilution 



Immunological specificity, concepts of, 



527-530 

 Inactivation, see also Radiation inactiva- 

 tion 



chemical agents 



alkylating agents and, 411-412 

 bile salts and, 418 

 enzymes and, 414^17 

 formaldehyde and, 398-405 

 heavy metals and, 417 

 infectivity retention and, 392 

 organic solvents and, 412^13 

 oxidizing agents and, 407-410 

 protein-denaturing agents and, 405, 



407 

 safranine and, 418 

 sodium deoxycholate and, 418 

 tannic acid and, 418 



heat 



sterilization and, 382-384 

 theory and, 384-387 



ionizing radiations 

 a-rays and, 372-374 

 general aspects of, 364-366 

 y-rays and, 372-374 

 X-rays and, 366-372 



mechanical treatments 

 high pressure and, 364 

 sonic irradiation and, 361-363 

 surface inactivation and, 363-364 



nonionizing radiations 



for UV light and, 374-379 

 near UV light and, 379-380 

 visible light and, 379-380 



radioactive phosphorus, decay of, 380- 

 382 



salt effects 



ionic composition and, 390-391 

 osmotic shock and, 391-392 

 Inclusion bodies 



insect viruses 



physicochemical properties of, 507- 



510 

 protein chemical composition of, 

 510-513 

 "Incomplete" virus, influenza virus and, 



355 

 Indole acetic acid 



tobacco pith tissue, polymer synthesis 

 and, 105-106 

 Induction, ultraviolet irradiation, mixed 



prophage and, 26 

 Infection, host cell respiration and, 20 

 Infection initiation, single virus particle, 



Poisson distribution and, 347-349 



