S U B J E C T I N D E X
741
Cytidine,
incorporation of, 217
monophosphate, and induction, 481
tritiated as R N A precursor, 327-8,
333
uptake b y H e L a cells, 326, 343
uptake inhibited by thymidine, 328
Cytochrome,
and anaerobiosis, 250
and cell division, 256
as oxygen carrier, 82
Cytochrome oxidase, 264, 648
Cytodifferentiation, 4 6 3 - 4
criteria for, 466
and microenvironments, 483
of pancreas, 479
Cytokinesis, 215-16
Cytolysis,
metabolic inhibitors and, 253
Cytophotometry, 2 2 1 - 2
Cytoplasm,
movements of, in division, 215
Cytosine,
in D N A and R N A , 317
and guanine, 319, 445
precursors of, 300
D
Dark-field illumination, 5, 33
"Darvan",
and clumping o f cells, 69
Dedifferentiation,
of cartilage cells, 508, 515
of cells in culture, 1, 32, 159, 467
to embryonic state, 476
energy metabolism and, 239, 375
of epithelial cells, 160
and growth rate, 294
and loss o f enzymic equipment, 2 7 8 - 9 ,
285
and mucopolysaccharide production,
375
and nutritional requirements, 283
stages in, 157, 170
Defence mechanisms, 2
Definitive streak ( D P S ) ,
stage of blastoderm, 472
Dehydroascorbic acid ( D H A ) ,
bacteria and, 682
and cell membranes, 686
and diabetes, 686
and inhibition caused by ascorbic acid,
687
metabolism of, 684
and mitosis, 685
Dehydrogenases (see also specific types),
648
Dendrites,
formation o f neurofibrils in, 616
Density-gradient,
of caesium chloride, 320
Dental pulp,
oestrogens and, 616
Denver system,
of chromosome nomenclature, 4 0 3 - 5
Deoxycorticosterone ( D O C ) , (see also
Corticosteroids)
and endothelial cells, 608
and fibroblasts, 608
and ionic balance, 167
and lymphocytes, 608
and melanophores, 609
2-deoxy glucose,
inhibits growth, 257
Deoxyribose,
derived from glucose, 112
in D N A , 317
Deoxyribosides, 222
Deoxyuridine,
uptake by H e L a cells, 326
Deoxyuridylic acid, 223
Dermis (dermal cells),
cell cultures from, 515
and collagen, 370
mechanocytes and amoebocytes from,
148
and mucopolysaccharides, 373-6
and mucous metaplasia o f epidermis,
666, 668
Desmosomes,
and action of trypsin, 56
and epithelial cell attachment, 161, 163
and mechanocytes, 164
and tissue dissociation, 51
Detergents
use of, 22
Determination, 467
of cells in aggregates, 506, 518
of internal marginal zone and endoderm, 537
lability of, 538
of primary ectoblast, 533
of tissues from neurula, 534
741
Cytidine,
incorporation of, 217
monophosphate, and induction, 481
tritiated as R N A precursor, 327-8,
333
uptake b y H e L a cells, 326, 343
uptake inhibited by thymidine, 328
Cytochrome,
and anaerobiosis, 250
and cell division, 256
as oxygen carrier, 82
Cytochrome oxidase, 264, 648
Cytodifferentiation, 4 6 3 - 4
criteria for, 466
and microenvironments, 483
of pancreas, 479
Cytokinesis, 215-16
Cytolysis,
metabolic inhibitors and, 253
Cytophotometry, 2 2 1 - 2
Cytoplasm,
movements of, in division, 215
Cytosine,
in D N A and R N A , 317
and guanine, 319, 445
precursors of, 300
D
Dark-field illumination, 5, 33
"Darvan",
and clumping o f cells, 69
Dedifferentiation,
of cartilage cells, 508, 515
of cells in culture, 1, 32, 159, 467
to embryonic state, 476
energy metabolism and, 239, 375
of epithelial cells, 160
and growth rate, 294
and loss o f enzymic equipment, 2 7 8 - 9 ,
285
and mucopolysaccharide production,
375
and nutritional requirements, 283
stages in, 157, 170
Defence mechanisms, 2
Definitive streak ( D P S ) ,
stage of blastoderm, 472
Dehydroascorbic acid ( D H A ) ,
bacteria and, 682
and cell membranes, 686
and diabetes, 686
and inhibition caused by ascorbic acid,
687
metabolism of, 684
and mitosis, 685
Dehydrogenases (see also specific types),
648
Dendrites,
formation o f neurofibrils in, 616
Density-gradient,
of caesium chloride, 320
Dental pulp,
oestrogens and, 616
Denver system,
of chromosome nomenclature, 4 0 3 - 5
Deoxycorticosterone ( D O C ) , (see also
Corticosteroids)
and endothelial cells, 608
and fibroblasts, 608
and ionic balance, 167
and lymphocytes, 608
and melanophores, 609
2-deoxy glucose,
inhibits growth, 257
Deoxyribose,
derived from glucose, 112
in D N A , 317
Deoxyribosides, 222
Deoxyuridine,
uptake by H e L a cells, 326
Deoxyuridylic acid, 223
Dermis (dermal cells),
cell cultures from, 515
and collagen, 370
mechanocytes and amoebocytes from,
148
and mucopolysaccharides, 373-6
and mucous metaplasia o f epidermis,
666, 668
Desmosomes,
and action of trypsin, 56
and epithelial cell attachment, 161, 163
and mechanocytes, 164
and tissue dissociation, 51
Detergents
use of, 22
Determination, 467
of cells in aggregates, 506, 518
of internal marginal zone and endoderm, 537
lability of, 538
of primary ectoblast, 533
of tissues from neurula, 534