SUBJECT INDEX
405
Leucocytes,
in chick embryo, 214-220
Leukemic substances,
effect on chick erythroblasts, 211
Ligature of blastomeres, 380-383
Light,
effect on Acrasina orientation, 301
stimulation of fungal growth by,
56-57
Limnea,
ooplasmic segregation, 3-22, 28
L. biplicata, 25
L. ovata, 3
L. palustris, 3
L. peregra, 25
L. stagnalis,
cortical pattern of egg, 26-27
lethal effect of alkali metals, 16
nuclear activity in cleavage, 331
ooplasmic segregation, 3, 13
Lipid distribution,
in ooplasmic segregation, 4-5
Lipoic acid,
effect on morphogenesis, 275, 283286
on nucleic acid metabolism, 253
Lithium,
and ATP activity, 163
effect on cellular structures, 183-189
on developmental stage onset, 340
on egg development, 15-19, 22-24,
348
on glycolysis, 162
vegetalization of sea urchin, 159-164
Lytechinus pictus, 177
M
Magnesium,
effect on eggs, 18
j8-Mercaptoethanol,
biochemical effect of, 286-290
effect on Acetabularia,
278-280
effect on amphibian eggs, 275-278
Mesoderm,
latent differentiation, 357
Metabolic gradients,
in embryonic development, 154-158
Metal ions,
animalization by, 182
Methionine,
uptake by developing sea urchin, 103
role in morphogenesis, 270
Microsomes,
amino acid uptake by, 105
in embryonic determination, 178
neural induction by, 267
preparation from sea urchin, 98
Misgurnis fossilis, 127, 325, 326, 328
Mitochondria,
amino acid uptake by, 105, 133
distribution and density in development, 175-177
enzymes of, activity in development,
175
function in morphogenesis, 129-133,
175
in animal pole plasm, 3, 5, 7
of chick blood cells, 209
preparation from sea urchin, 98-100
structure in sea urchin, 185
Mitochondrion,
of fungi, 44-46, 50, 86-87
Mitoses,
drug-induced arrest of, 226
effect of thiols on, 276
of chick blood cells, 223-228
Mitotic anomalies,
in lethal hybrids, 326-327
Mitotic index,
in blastula and gastrula stages, 325,
350
in neurulation, 336
in triploid Rana, 335
Mucor rouxii, 80
Myxas, 3, 5
Ν
Nassa, 3
Navanax, 4, 5
Neritina, 5
Neural induction,
by ribonucleoproteins, 265-268
Neurulation,
duration of, 336, 341
Newt,
cleavage duration, 340-344
eye lens differentiation, 346
Nicotinamide-adenine nucleotides
(DPN, TPN),
in developmental shift of fungal
spores, 62-63
in egg development, 178-179
in lethal hybrid development, 254
Nowakowskiella,
35
405
Leucocytes,
in chick embryo, 214-220
Leukemic substances,
effect on chick erythroblasts, 211
Ligature of blastomeres, 380-383
Light,
effect on Acrasina orientation, 301
stimulation of fungal growth by,
56-57
Limnea,
ooplasmic segregation, 3-22, 28
L. biplicata, 25
L. ovata, 3
L. palustris, 3
L. peregra, 25
L. stagnalis,
cortical pattern of egg, 26-27
lethal effect of alkali metals, 16
nuclear activity in cleavage, 331
ooplasmic segregation, 3, 13
Lipid distribution,
in ooplasmic segregation, 4-5
Lipoic acid,
effect on morphogenesis, 275, 283286
on nucleic acid metabolism, 253
Lithium,
and ATP activity, 163
effect on cellular structures, 183-189
on developmental stage onset, 340
on egg development, 15-19, 22-24,
348
on glycolysis, 162
vegetalization of sea urchin, 159-164
Lytechinus pictus, 177
M
Magnesium,
effect on eggs, 18
j8-Mercaptoethanol,
biochemical effect of, 286-290
effect on Acetabularia,
278-280
effect on amphibian eggs, 275-278
Mesoderm,
latent differentiation, 357
Metabolic gradients,
in embryonic development, 154-158
Metal ions,
animalization by, 182
Methionine,
uptake by developing sea urchin, 103
role in morphogenesis, 270
Microsomes,
amino acid uptake by, 105
in embryonic determination, 178
neural induction by, 267
preparation from sea urchin, 98
Misgurnis fossilis, 127, 325, 326, 328
Mitochondria,
amino acid uptake by, 105, 133
distribution and density in development, 175-177
enzymes of, activity in development,
175
function in morphogenesis, 129-133,
175
in animal pole plasm, 3, 5, 7
of chick blood cells, 209
preparation from sea urchin, 98-100
structure in sea urchin, 185
Mitochondrion,
of fungi, 44-46, 50, 86-87
Mitoses,
drug-induced arrest of, 226
effect of thiols on, 276
of chick blood cells, 223-228
Mitotic anomalies,
in lethal hybrids, 326-327
Mitotic index,
in blastula and gastrula stages, 325,
350
in neurulation, 336
in triploid Rana, 335
Mucor rouxii, 80
Myxas, 3, 5
Ν
Nassa, 3
Navanax, 4, 5
Neritina, 5
Neural induction,
by ribonucleoproteins, 265-268
Neurulation,
duration of, 336, 341
Newt,
cleavage duration, 340-344
eye lens differentiation, 346
Nicotinamide-adenine nucleotides
(DPN, TPN),
in developmental shift of fungal
spores, 62-63
in egg development, 178-179
in lethal hybrid development, 254
Nowakowskiella,
35