984 



SUBJECT INDEX 



creatine synthesis and transimidation, 80 



Crepis capillaris, 913 



Criodrillus, 628, 644 



crista, 451 



Crocker mouse sarcoma, 551 



crotonase, 7 



crotoniside (2-hydroxyadenosine) as mitose 



inhibitor, 935 

 croton oil as cocarcinogen, 858 

 crotonyl-CoA, 11, 30 

 cross immunization against chicken 



tumor viruses, 857 

 crown gall, 771 

 — , ionizing radiation reducing growth of, 



774 

 Crustacea, 590 

 Ctenophora, 243 

 ^'*C in tumor proteins, rate of increase of, 



897 

 cupro-oxidase, 25 

 cutaneous tumors, 840 

 cyanide inactivating enzymes containing 



Cu, Mn and Fe, 786 



— inhibiting growth and respiration in 

 plant cells, 786 



cyclosis, 751, 797 



cyclic compounds, oxidation by enzymes, 



10 

 cyclohexaneacetic acid, 765 

 cyclophorase, 151 

 Cyclops egg, 941 

 Cyprimis, 185, 200 

 cystathionine, 63, 73 



— formed by condensation of homoserine 

 with cysteine, 73 



cysteine, 12, 63 



— bridges as structural components of 

 synthesized keratin. 615 



— , conversion of sulfate to — , 63 

 — , cystathionine forming by condensation 

 of homoserine with — , 73 



— deposition rate in healing wounds, 701 

 — , metabolism of — sulfinic acid, 64 



— , methionine as source of — , 616 



— , reduction of — sulfinic acid to cysteine, 



— as reductor for neuralization of ventral 

 explants, 426 



S-sulfonate as intermediate in 



cysteine synthesis, 83 



— synthesis, methionine as sulfur source 

 for , 63 



cytidine, conversion to the deoxycytidine 



and thymidine of DNA, 105 

 — , deamination, 100 



— diphosphocholine as coenzyme, 107 



cytidine diphosphoethanolamine as 

 coenzyme, 107 



— phosphorylase activity, 10 1 



— phosphorylation, 102 



— triphosphate formation, 83 



cytidylic acid inhibiting mitosis in germinal 



epithelium of rat ovaries, 936 

 cytochrome a.i, b, c, e and m, 17 



— c, 634 



— c and cytochrome oxidase deficiency 

 in tumor tissues, 884 



— m, 26 



— oxidase, 513, 786 

 activity, 20, 187 



— c-reductase, 1 7 



— m-reductase, 26 



— reductase, 527 



— reductase activity, 20 



— system, 16 

 cytodifferentiation, 320 

 cytokinesis, 536 



— in plant cells, 774 

 cytolytic, agents, 422 



— demolition of cells and intercellular 

 material, 595 



cytolizing cells, liberation of ammonia 



from, 736 

 cytological, mechanism of nitrogen 



metabolism, 729 



— stages of functional activity, exhaustion 

 and recovery of the nerve cell, 964 



cyton, 603 



cytoplasm, amputation of, 726 



— of the gametes, 306 



— , interaction between nucleus and, 158 

 cytoplasmic bridges, 354 



— displacements in the egg, 354 



— granules of fibrogenic cells, 694 



— organelles, 341 



— particles, distribution of, 289 



— reticulum, 307 



— streaming in plant cells, 797 

 cytosine, 261 



— , amination of uracil compounds to, 100 



— riboside biosynthesis, block in, 912 



— in RNA from epithelial rat tumors, 

 902 



— , utilization, 99 



Dandelion, 756 

 Daphnia, carapace of, 604 

 Daphnia pulex, 185 

 dealkylating enzymes, 12 

 deaminating enzymes, 12 

 deamination of cytidine, 100 

 — , direct oxidative, 762 



