Publications

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[the effect of colchicine on the spinal cord regeneration of ambystoma mexicanum after extirpation of a small section]. 19665982866
the influence of beta-aminopropionitrile on the cartilage matrix of the regenerating limbs of the axolotl (ambystoma mexicanum). a histochemical study. 19665957964
[study of the serum in the urodeles proteus anguinus laur. and ambystoma mexicanum cope. fraction by electrophoresis and widening]. 19654954695
[effect of embryonic brain extract on the forebrain of ambystoma mexicanum following unilateral resection of the right forebrain pole]. 19655832370
the regulation of urea-biosynthesis enzymes in vertebrates.1. carbamoyl phosphate synthetase, ornithine transcarbamoylase, the arginine-synthetase system and arginase were measured in the livers of ammoniotelic, ureotelic and uricotelic animals. the chelonian reptiles, whose nitrogen excretory patterns vary according to the habitat, and the mexican axolotl, a neotenic species, were also studied. 2. the levels of the activities of the first three enzymes mentioned correlate with the amount of nitrogen excreted as urea. 3. the terrestrial turtle, which ex ...196514343146
histopathology of the development of the axial skeleton and spinal cord in the irradiated tail of the young axolotl (siredon mexicanum). 19655846304
[radioautographic studies on the incorporation of s35-labeled na2so4 in the extremities of the axolotl during regeneration and following irradiation]. 19655296122
spontaneous melanoma in regenerating tails of axolotls. 196514299677
[regeneration, induced by testis grafts, of irradiated limbs in the axolotl]. 196514275976
[dimensionless characteristics of the duration of mitotic phases of the 1st cleavage division in the axolotl]. 196514277315
[study on the incorporation of s35-labeled sodium sulfate in the cartilage of the axolotl]. 196514333227
new observations concerning roentgen sensitivity of pigment cells in young axolotls (siredon mexicanum). 196514245876
[study of chromosomes in blastulae of axolotl]. 19655894861
sexual dimorphism in the nucleolar autosome of the axolotl (siredon mexicanum). 19655889984
[the hemoglobin of amphibia. ii. characterization of mexican axolotl hemoglobin: chemico-physical properties and amino acid composition]. 19655889621
[effect of experimentally induced metamorphosis on regenerative processes in the forebrain of ambystoma mexicanum]. 19655888094
[histological and histochemical study of recovery of the regeneration capacity of axolotl extremities, suppressed by x-irradiation]. 19655871954
[spinal cord regeneration in the ambystoma mexicanum following experimental metamorphosis]. 19655826820
a study of induced metamorphosis in the axolotl. 19655884072
the response of the olfactory epithelium of the adult axolotl (siredon mexicanum) to roentgen irradiation. 196514320802
[chimerical combinations between the axolotl and various triton species]. 19654954328
[topochemical proof of glycogen formation in the neurula stage of axolotl eggs]. 19654158377
[influence of actinomycin d on the metamorphosis induced by thyroxine in the axolotl]. 196514331244
a test of the capacity of presumptive somatic cells to transform into primordial germ cells in the mexican axolotl. 196414193848
[dynamics of changes of the nucleic acid content following roentgen-irradiation and depression and restoration of regenerative capacities of axolotl extremities]. 196414219603
the influence of lithium on the competence of the ectoderm in ambystoma mexicanum. 196414192053
the effects of sodium, potassium, and calcium ions on certain expressions of the semilethal gene v in the mexican axolotl, ambystoma (=siredon) mexicanum. 196414138973
tissue environment and morphogenesis of axolotl melanophores. 196414164511
genetic and experimental studies on a lethal factor (r) in the axolotl which induces abnormalities in the renal system and other organs. 196414131450
[compensatory hyperplasia and regeneration in the telencephalon of ambystoma mexicanum following resection of a hemisphere]. 196414332323
[regenerative processes in the telencephalon of ambystoma mexicanum]. 196414248567
[cellular action of myleran in the axolotl during regeneration]. 196414188127
ultrastructural aspects of the nucleo-cytoplasmic relationship of invaginated nuclei in the epidermal cells of the axolotl. 196414156467
[experimental study on the influence of olfactory nerve regeneration on forebrain regeneration of ambystoma mexicanum]. 19645889108
[the restoration of regenerative capacity of the extremities in the axolotl, inhibited by x-irradiation, by means of nucleic acids]. 196414311043
[on causes of lost regenerative capacity of the axolotl extremity after roentgen irradiation]. 196414261202
transplantation of nuclei of various cell types from neurulae of the mexican axolotl (ambystoma mexicanum). 196414217778
a microscopic study of chlorpromazine (largactil) treated axolotl larvae. 196414208247
fate of cartilage cells in limb regeneration in the axolotl (ambystoma mexicanum). 19645856867
[persistence of leptospira icterohaemorrhagiae in the axolotl (ambystoma tigrinum)]. 196314190217
[the structure of the hemoglobin of the mexican axolotl. ii. study of the denaturation with alkalies]. 196314156753
[the structure of the hemoglobin of the mexican axolotl. i. chemico-physical properties]. 196314153902
polyploidy in the mexican axolotl (ambystoma mexicanum) resulting from multinucleate ova. 196314096187
tissue afinities of developing melanophores in the mexican axolotl, siredon mexicanum, shaw. 196314085417
successive changes in the cornea of young axolotl (siredon mexicanum) after x-irradiation. 196314075650
the successive changes in the skin epithelium of the young axolotl (siredon mexicanum) after roentgen irradiation. 196314016363
localized areas of high alkaline phosphatase activity in the endothelium of arteries in the axolotl. 196313984342
[electron microscope studies on degenerative and regenerative processes in severed spinal cord of ambystoma mexicanum]. 196314126249
[cytological effects of myleran on striated muscle of the chick embryo in ovo and the regenerating axolotl tail]. 196313969896
studies on the maternal effect of the semilethal gene, v, in the mexican axolotl. i. influence of temperature on the expression of the effect. ii. cytological changes in the affected embryos. 196213873071
[cytology of the islets of langerhans in the axolotl (siredon mexicanum) and ambyostoma maculatum]. 196214455288
histochemical localization of beta-glucuronidase in healing wounds of the axolotl. 196214039532
nuclear transplantation in the axolotl. 196213912738
[action of myleran on regenerating striated muscle in axolotl]. 196213933521
a study of myofibril sarcomere structure during contraction.in the present investigation of cross-striated muscle fibers of axolotl, we succeeded in observing in one field of vision of the electron microscope all the stages of myofibril contraction. this allowed us to avoid errors in establishing the sequence of individual contraction stages. our studies reveal a new contraction stage which appears at the shortening of the sarcomere below 74 per cent of the "resting length" but prior to the formation of typical "maximally shortened" sarcomeres, character ...196213898583
microchemical deoxyribonucleic acid determination in individual cells.a method for the quantitative determination of dna in the 50 to 500 micromicrog. range is presented. cells or cell nuclei are isolated individually from fixed tissue by means of micromanipulation. the tissue units in question are extracted in an oil chamber with deoxyribonuclease solution. the extracts are evaporated to dryness and redissolved to lens-shaped drops, the dna contents of which are determined by a photographic-photometric procedure in ultraviolet light. determinations on calf thymoc ...196113725762
[culture of ovaries of axolotl on different media]. 196113893979
the self-differentiation of the paddle-shaped limb regenerate, transplanted with normal and reversed proximo-distal orientation after removal of the digital plate (ambystoma mexicanum). 196113770156
internal factors influencing normal and compensatory growth of the axolotl pronephros. 196013701095
reaction of limb regenerates of adult axolotl (siredon mexicanum) to x-irradiation. 196013805394
a maternal effect of a gene (f) for a fluid imbalance in the mexican axolotl. 196014405375
[intracellular electrogram (i.c.e.), external electrogram and mechanogram of the heart of the axolotl (amblystoma tigrinum)]. 196013759035
[electron microscopic study of the fine structures of the cytoplasm of the early embryonal stages of ambystoma mexicanum]. 196013689453
[regeneration of the extremities of the adult axolotl, at the expense of embryonal grafts]. 195914414792
further investigation of the effect of roentgen irradiation upon the development of the head of the young axolotl. 195913805393
studies on the process of lens induction inxenopus laevis (daudin).1. optic vesicle from stage 24 (nieuwkoop andfaber 1956) can induce lens in the ectoderm from early to mid grastrula, and even from ventral ectoderm of a tail bud stage. 2. lenses were induced from early ectoderm cultured over night before grafting even though it remained thick. 3. for lens formation and its differentiation, prolonged contact with the optic vesicle seems essential. 4. lens anlage removed from the influence of the optic vesicle as late as the stage 24 (nieuwkoop andfaber 1956) an ...195928354744
[xenoplastic transplantation of the caudal bud of urodela embryos on the limb region of anuran embryos (axolotl-discoglossus pictus)]. 195913855773
roentgen regression and roentgen stimulation in axolotl (siredon mexicanum). 195913805395
the roentgen sensitivity of various portions of the eye of young axolotl (siredon mexicanum). 195813595168
the effect of different doses of roentgen rays on adult axolotl (siredon mexicanum). 195813545474
on mast cells in the choroid plexus of the axolotl (ambystoma mex.). 195813625921
the effect of total-body x-irradiation on the adult axolotl (siredon mexicanum). 195813506032
[autoradiography study of 14co2 incorporation in axolotl gastrulas]. 195813539274
histopathology of roentgen death of young axolotl (siredon mexicanum). 195713458572
the developmental mechanics of pigment pattern formation in the black axolotl, amblystoma mexicanum. i. the formation of yellow and black bars in young larvae. 195713481300
the origin of spontaneous and experimental haploids in the mexican axolotl (siredonor ambystoma-mexicanum). 195713475654
[causes of lose of regenerative properties in the extremities of axolotl following roentgen ray irradiation]. 195713445954
male homogamety in the mexican axolotl: a study of the progeny obtained when germ cells of a genetic male are incorporated in a developing ovary. 195713428947
[effects of x-rays on the metachromic skin substance in the axolotl]. 195713432196
investigation of the lethal effect of x-irradiation on the young axolotl (siredon mexicanum). 195613359680
mapping centromeres in the axolotl. 195617247612
the influence of roentgen irradiation on the development of the eye of the axolotl. 195513228774
[action of acth on the axolotl as a function of successive deficiency of the principle salts of the environment]. 195513327435
[the effect of phenothiazine preparations on the regeneration process of planaria and axolotl]. 195513262707
action of malononitrile on the embryonic development of ambystoma mexicanum and rana temporaria. 195513267234
[malignant neoplasms produced in axolotl with crystals of methylcholanthrene]. 195414365611
[effect of isolated hormones on the experimental development and metamorphosis of the axolotl as a function of a deficiency of the main salts of the medium, potassium and sodium]. 195414364939
a comparison of the effects of local roentgen irradiation on jaw and tooth development in young axolotls and mice. 195413188997
[effect of thyrotropin of sturgeon on metamorphosis of axolotl]. 195413210240
[effect of isolated hormones on the development and experimental metamorphosis of axolotls in relation to successive deficiency of the principle salts of the environment; suppression of calcium and magnesium]. 195413219807
[effect of isolated hormones on the development and experimental metamorphosis of the axolotl as a function of deficiency of the principal salts of the medum]. 195414376947
[experimental study of the function and origin of kolmer's cells of plexus chorioideus in axolotl and guinea pig]. 195313103189
[effect of hormones as a function of the ph of the environment on metamorphosis and development of the axolotl (ambystoma tigrinum green)]. 195313142450
[effect of combined hormonal treatment on the metamorphosis of the axolotl; ambystoma tigrinum green; as a function of the ph of the ambient medium]. 195313138988
[action of cortisone and acth on hypophysectomized axolotls (amblystoma tigrinum green) as a function of the ph of the environmental medium]. 195313150652
[fine morphological and histochemical studies on the skin of axolotl]. 195313126292
[effect of cortisone and acth associated with thyroxin on the metamorphosis of the axolotl with reference to the ph of environmental medium]. 195313148679
[the effect of benzopyrene on the development of triton and axolotls]. 195313103400
[effect of roentgen irradiation of the spinal cord on regeneration of peripheral nerves in axolotls]. 195213021020
the rare occurrence of mitosis without spindle apparatus ("colchicine mitosis") producing endopolyploidy in embryos of the axolotl. 195216589227
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