Publications

relation between carp (multiple-sclerosis associated) agent and multiple sclerosis.	it is suggested that the carp (multiple-sclerosis associated and scrapie associated) agents may be the v-r.n.a. form of slow (d.n.a.) viruses which are the aetiological agents of the two diseases.	1976	73745
regulatory effect of temperature and antigen upon immunity in ectothermic vertebrates. i. influence of hapten density on the immunological and serological properties of penicilloyl-carrier conjugates.	sodium penicillin was conjugated to sheep erythrocytes and optimal quantities, added to a 5% srbc suspension, were determined for haemagglutination (12-5 mg/ml) and for haemolysis (50 mg/ml) using carp antibodies and carp complement. the epitope density on the bsa molecule was gradually increased, when increasing amounts of sodium-penicillin were added to a constant quantity of bsa, until a maximum of about thirty penicilloyl groups were bound. low conjugates, having less than seven haptenic gro ...	1976	61940
evidence for the synthesis of a precursor of carp proinsulin in a cell-free translation system.		1976	791674
immunohistological identification of neurophysin and neurophysin-like substances in different vertebrates.	using rabbit antisera to porcine neurophysin, the immunohistological unlabelled-antibody-peroxidase technique was applied to brains of man, rat, quail, pigeon, tortoise, frog, two cyprinid fishes, sturgeon and lamprey as well as to the urophysis of carp and the brain of the cockroach. in each of the investigated vertebrate speices the magnocellular neurosecretory system is immunoreactive, known to give a specific reaction for neurosecretory material by means of appropriate histological and histo ...	1976	795640
[a molecular hybrid having gonadotropic activity in frogs composed of the alpha subunit of bovine luteinizing hormone and a subunit of a gonadotropin of a teleost fish].	the alpha subunit of bovine lh and the subunit su ii of carp gonadotropin are able to associate. the hybrid is about one hundred times less active than c-gth or b-lh, respectively on goldfish and rat ovarian adenyl cyclase. however it is more efficient than both horomones on an amphibian (rana esculenta), on spermiation in vivo as well as on ovarian adenyl cyclase in vitro.	1976	816536
[evidence and importance of the larval chaetotaxy in the monogenea monopisthocotylea].	the larva of ergentrema mugilis paperna, 1964 (ancyrocephalidae) occurring in liza ramada (risso, 1826) is described for the first time including the primary haptor description as well as the chaetotaxy. in addition, the sensillae position, previously unknown in the larva of dactylogyrus extensus muëller and van cleave, 1932 (dactylogyridae) a parasite of cyprinus carpio l., is specified. the comparison between these two chaetotaxies shows a proximity which was not obvious through the adult and ...	1976	819151
protozoan parasites of carp (cyprinus carpio l.): a comparative study of their occurrence in bulgaria and czechoslovakia, with the description of trichodina perforata sp.n.	in the course of a long-term study of protozoan parasites of carp (cyprinus carpio l.), a total of 27 protozoan species were discovered in czechoslovakia and 26 species on the bulgarian territory. their list is supplemented with remarks on their pathogenicity, frequency of occurrence and morphology. there is no essential difference in the constituents of protozoan parasitofauna of carp between the two territories studied; a very similar fauna of protozoans can be anticipated on carp in other eur ...	1976	828131
[a comparative electron microscopic study of the peripheral blood leukocytes of vertebrates].	the ultrastructure of leukocytes of the peripheral blood was studied in representatives of classes of fishes (cyprinus carpio), amphibia (rana redibunda, bufo bufo), reptiles (testudo horshfield), birds (columba livia) and mammals (rattus norvegicus). the granules are characterized by homogeneous or heterogeneous matrix. the granules of special leukocytes (turtle) and pseudoesinophils (pigeon) have larger dimensions than those in neutrophils of other animals. the matrix of the eosinophil granule ...	1975	818982
infectivity of fish rhabdoviruses for drosophila melanogaster.	two fish rhabdoviruses, spring viraemia of carp virus (svc) and pike fry rhabdovirus (pfr), have been shown to multiply in drosophila melanogaster. the other two fish rhabdoviruses, viral haemorrhagic septicaemia (vhs) and infectious hematopoietic necrosis (ihn), did not multiply under the conditions used. only those viruses which multiplied (i. e. svc, pfr) conferred a co2 sensitivity on the infected drosophila. no hereditary transmission of the fish viruses was detected.	1975	811150
the use of fluorescein isothiocyanate labelled lectins for immunohistochemical demonstration of saccharides.	cryostat sections of various tissues from man, rat, mice, hamster, rabbit, guinea pig, sparrow and carp were examined by fluorescence microscopy after incubation with fluorescein isothiocyanate labelled concanavalin a and lens culinaris lectin. in the same tissue of various species no basic differences in the pattern of fluorescence were observed. in general, connective tissue structures were stained by both lectins in the same degree, whereas by fluorescein isothiocyanate labelled concanavalin ...	1975	786713
[structural and immunochemical studies on the immunoglobulin of carp (cyprinus carpio l.). iii. valence and affinity of antidinitrophenyl-antibodies].	carps were immunized with dnp conjugated to human serum albumin, bovine gamma globulin and brucella abortus. the antibodies were isolated by immunoadsorption. the intrinsic average association constant (ko) of the antibodies was determined by equilibrium dialysis and ammonium sulphate precipitation employing the monovalent hapten tritiated epsilon-dnp-l-lysine. the tetrameric carp igm possesses four measurable combining sites per molecule. the affinity (ko) of the isolated antibodies varied from ...	1975	788423
species specificity of thromboplastin. a phylogenetic study.	having studied the influence of thromboplastin preparations derived from cold and warm-blooded species on the plasma of 12 vertebrates (carp, frog, turtle, hen, rabbit, rat, mouse, guinea-pig, ground squirrel, dog, sheep and man) we have established that among the species far from each other phylogenetically, the phenomenon of species specificity could be demonstrated in general. it was found that the extrinsic coagulation system measured by quick times can well be activated in every examined sp ...	1975	54309
[sodium reabsorption and the membrane systems of vertebrate kidneys].	sodium reabsorption is low in coldblooded animals (the lamprey lampetra fluviatilis, red salmon oncorhynchus nerka, carp cyprinus carpio, frog rana temporaria, tortoise agryonemis horsfieldi) being much higher in warmblooded ones (chicken, pigeon, rat). high level of na transport in warmblooded animals is paralleled by high activity of succinate dehydrogenase as compared with the activity of na,k-atpase. the content of monoenoic fatty acids in the glycerophosphatides from frog and tortoise kidne ...	1975	125513
fluorescent and spin label probes of the environments of the sulfhydryl groups of porcine muscle adenylate kinase.	the environments of the two sulfhydryl groups of procine muscle adenylate kinase have been investigated by chemical modification reactions. the results indicate that the environments of the two-sh groups of procine muscle adenylate kinase are markedly different and that substrates induce conformational changes in the enzyme in the region of the sulfhydryl groups. the fluorogenic reagent 7-chloro-4-nitrobenzo-2-oxa-1, 3-diazole (nbd-chloride) reacts specifically with the -sh groups of the enzyme ...	1975	163231
structure-function relationships and mode of replication of animal rhabdoviruses.	recently accumulated knowledge allows more precise comparison of the structural (and possibly evolutionary) relationships of several different animal rhabdoviruses: vesicular stomatitis virus, rabies virus, kern canyon virus, and spring viremia of carp virus. each virus is composed primarily of a glycoprotein, an rna-associated nucleoprotein, and one or two membrane proteins. vesicular stomatitis virus group viruses contain lesser amounts of two additional distinct polypeptides, ns and l. the se ...	1975	165494
[exophthalmogenic effect of thyrotropin releasing hormone (trh) in the animal experiment].	exophthalmos has been induced in carp by injecting thyrotropin releasing hormone (trh) (pyro-glutamyl-histidyl-prolinamide) into the coelom. this effect was dose-dependent (dose range 5-750 mug). it was significantly potentiated by prior administration of beta-1 minus 24 coricotropin (synacthen, ciba) and inhibited by prednisclone. no significant increase was obtained with 2-phenylalanine-8-lysire-vasopressin (octapressin, sandoz). the results show that in the fish model, trh exerts an exophthal ...	1975	168634
inactivation of rabbit, pig, and carp adenylate kinases by n6-o- and p-fluorobenzoyladenosine 5'-triphosphates.	n6-o- and p-fluorobenzoyladenosine 5'-triphosphates (iiic and iic, respectively) have been synthesized as potential adenosine 5'-triphosphate (atp) site-directed reagents for enzymes. iic and iiic were substrates of yeast hexokinase; neither they nor the corresponding adp derivatives inactivated yeast hexokinase or rabbit pyruvate kinase. iic rapidly inactivated rabbit and carp muscle adenylate kinases; the effect is probably atp site directed because n6-benzoyl-atp did not inactivate and was a ...	1975	172123
characterization of "pasteurella" piscicida isolated from white perch and cultivated yellowtail.	the morphological, physiological, and biochemical characteristics of twelve "pasteurella" piscicida strains isolated from white perch and yellowtail are described and the present uncertain taxonomic status of the organisms is discussed. the organisms isolated were gram-negative rods showing bipolar staining and pleomorphism. no spores or flagella were observed. they were non motile and viscid colonies were formed. growth was observed in a temperature range of 20 to 30 c and the salinity range of ...	1975	172679
the distribution of pyrophosphatidic acid in nature.	the occurrence of a novel phospholipid, pyrophosphatidic acid, in the lipid extracts of yeasts (23 species), bacteria (e. coli), algae (chlorella), mammalia (human, rabbit, guinea pig, and mouse), insect (cockroach), fish (carp), mollusc (clam), and spermatophyta (spinach) was investigated. pyrophosphatidic acid was found exclusively in the lipid extracts of several kinds of yeast species, but not in other normal living species (animals, plants, and microorganisms) so far investigated. all of th ...	1975	175047
proton magnetic resonance spectra or porcine muscle adenylate kinase and substrate complexes.	porcine muscle adenylate kinase with a molecular weight of 22,000 has 2 histidine, 5 phenylalanine, 7 tyrosine, and no tryptophan residues. the effect of ph, substrate, and the paramagnetic manganous ion on the proton magnetic resonance spectrum of the enzyme, particularly the aromatic region, has been investigated at 220 mhz. the well resolved c2 proton peaks of the 2 histidine residues have been individually assigned to his-36 and his-189 by comparison with the spectrum of the carp muscle enzy ...	1975	239953
amino-acid sequence of parvalbumin from rabbit skeletal muscle.	determination of the complete amino-acid sequence of rabbit skeletal muscle parvalbumin is described. the sequence of 86 of the 109 total residues was determined automatically by sequenator analyses of peptides obtained after cleavage with cnbr or with trypsin. the positions of the remaining 23 residues were determined by subtractive edman degradation of tryptic and chymotryptic peptides. the protein has an acetylated amino terminus. comparison of the rabbit parvalbumin with those from carp, hak ...	1975	1055405
proceedings: cross-reaction of rabbit anti-carp gonadotrophin globulin with gonadotrophic hormone of some teleost fish as tested by immunofluorescence.		1975	1094085
troponin and parvalbumin calcium binding regions predicted in myosin light chain and t4 lysozyme.	a computer search of available protein sequences and structures suggests that bacteriophage t4 lysozyme contains one region and that rabbit myosin light chains contain three regions similar, and supposedly homologous, to the calcium binding region of carp muscle calcium binding parvalbumin.	1975	1111094
comparative biochemistry of serum albumin. a serum albumin-like protein from carp, cyprinus carpio.		1975	1122738
significant differences in the degradation of pro-leu-gly-nh2 by human serum and that of other species (38484).	the acyclic c-terminal tripeptide of oxytocin, h-pro-leu-gly-nh-2, is not degraded upon incubation with human (male,female or pregnant female) plasma or serum for 1hr at 37 degrees. however, the sera of other species tested, including rat, chicken and carp, degrade this tripeptide 100%, 4% and 30%, respectively, in 1 hr, as determined by quantitative amino acid analysis of released products. among the species studied there seems to exist a correlation between the anatomic development of the pars ...	1975	1168915
physico-chemical and serological characterization of five rhabdoviruses infecting fish.	viruses isolated from fish with viral haemorrhagic septicaemia (vhs), infectious haematopoietic necrosis (ihn), spring viraemia of carp (svc), swim-bladder inflammation (sbi) and pike fry disease (pfd) have been grown to high titre in fathead minnow cells. while our preparations of the ihn, svc, sbi and pfd viruses showed typical rhabdovirus morphology with bullet-shaped particles and distinct surface projections, the vhs virus preparations had a less typical rhabdovirus morphology but were pleo ...	1975	1170278
fish rhabdoviruses: comparative study of protein structure.	proteins from four fish rhabdoviruses have been studied by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. the viruses were: trout viral hemorrhagic septicemia (vhs), infectious hematopoietic necrosis virus (ihn), spring viremia virus of carp (svc), and the pike fry rhabdovirus (pfr). for the two salmonid viruses (vhs-ihn), gel electrophoresis indicated the proteins, with molecular weights estimated to be 190,000, 80,000, 38,000, 25,000, and 19,000, respectively. the electrophoretic p ...	1975	1171263
sensitivity of eels (anguilla anguilla) and carp (cyprinus carpio) to type c and e botulinum toxin.	this study has shown for the first time that fish such as eels (anguilla anguilla l.) and carp (cyprinus carpio l.) are sensitive to type e botulinum toxin. with oral administration the mld for eels was 27.500 mouse ld50 per kg body weight, while for carp it was only 236 mouse ld50 per kg. carp were also found to be sensitive to a slight degree to type c botulinum toxin, the mld of the most virulent toxin of this type being 457,000 mouse ld50 per kg with oral administration. eels, however, showe ...	1975	1179868
studies on phagocytosis in fish. i. in vitro uptake and killing of living staphylococcus aureus by peripheral leucocytes of carp (cyprinus carpio).	the clearance and uptake of staphylococcus aureus were studied in vitro in whole blood of immunized and non-immunized carp. bacterial numbers were determined by : (1) counting viable cells in agar plates; (2) counting radioactivity of 14c-labelled bacteria. similar results were obtained by these two methods. neither the bacterial growth nor the ingestion of bacteria into the cells seem to be influences by immunization. in both immunized and non-immunized groups the number of intracellular bacter ...	1975	1193688
multiple sclerosis-associated agent: transmission to animals and some properties of the agent.	in confirmation and extension of observations by carp and his associates, brain tissue and sera from patients with multiple sclerosis (ms) were found to harbor an agent which induces a transitory depression in polymorphonuclear leukocytes (pmn) in mice as well as in rats, hamsters, and guinea pigs. all of eight md brains contained this agent at titers as high as 10(-9)/g of brain tissue. the agent was found in ms sera at titers up to 10(-3)/ml of serum, but its presence depended to some extent o ...	1975	1205617
[intracellular on--off responses of carp retina amacrine cells adapted to the dark].	dependence of the amplitude and latency of on and off responses of amacrine cells in the isolated dark-adapted carp retina upon the light spot intensity and diameter was studied by intracellular recordings. it is shown that the responses of amacrine cells to onset and offset of light consist of trasient depolarizations with oscillatory potentials and impulses. the latency of the on response decreases and the latency of the off response increases when the light spot intensity and diameter are inc ...	1975	1207845
the use of carp, cyprinus carpio (linnaeus, 1758), instead of rabbit as antibody donor in immunological research on fishes.	antisera produced by carp were tested in the differentiation between two cyprinid fishes, bream and roach, and between the lipovitellins of two grey mullets, mugil cephalus and liza ramada. these antisera were more specific in the recognition of different fish species than those produced by rabbits. an antiserum against carp lipovitellin was produced with male carp as antibody donor.	1975	1211668
[panfuran in aeromonosis (rubella) of carp].		1975	1216501
functional morpho-histology of the alimentary canal of an indian frewhwater major carp, labeo rohita (hamilton) during it's different life-history stages.	1. the alimentary canal of the fry of l. rohita (hamilton) is of the carnivorous type in nature and disposition with a low relative length of the gut (r. l. g.). 2. end-buds are present. the buccopharyngeal region has a simple epithelial surface. mucous cells are small and few throughout the length of the alimentary canal. the presence of these structures in association with a zooplankton feeding habit indicate that the fries are primarily sightfeeders and carnivorous. 3. with increase in age an ...	1975	1217739
on the origin, development and probable functions of taste bud in the lip and bucco-pharyngeal epithelia of an indian freshwater major carp, cirrhinus mrigala (hamilton) in relation to food and feeding habits.	1. various developmental stages of taste bud have been observed in the fry, fingerling and adult of cirrhinus mrigala (hamilton). 2. the fries are zooplankton-feeders (carnivorous) and sight-feeders. therefore, functional taste buds are absent in the lip and bucco-pharyngeal epithelia. only formative stages of taste bud are present. some epithelial cells aggregate together to form this structure which has no function in gustation. moreover, the fires have low r. l. g. valle (0.71;..1.20) due to ...	1975	1224765
calcium binding sites of rabbit troponin and carp parvalbumin.		1975	1225590
pyruvate kinase from the red skeletal musculature of the carp (carassius carassius l.).		1975	235917
the potential of carp to bioactivate benzo[a]pyrene to metabolites that bind to dna.	we have investigated the formation of dna adducts in starved, fed and 5,6-benzoflavone-pretreated carp following i.p. administration of benzo(a)pyrene. 32p-postlabeling analysis of the liver dnas showed the presence of one predominant (greater than 92%) adduct in all three groups. cochromatography experiments revealed that the main adduct was identical to authentic bpdei-dg (10 beta-(deoxyguanosin-n2-yl)-7 beta, 8 alpha, 9 alpha-trihydroxy-7,8,9,10-tetrahydrobenzo[a]pyrene). the formation of the ...	1975	2032212
responses of the ultimobranchial body in eels (anguilla anguilla l.) maintained in sea water and experimentally matured, to injections of synthetic salmon calcitonin.	the effect of a synthetic salmon calcitonin (sct) treatment on ultimobranchial body (ub) activity in eels (anguilla anguilla l.) maintained in seawater and submitted to experimental maturation, has been studied histologically. 2. the activity of the glands of a control group of eels maintained in sea water was taken as a reference. 3. the ub parenchyma showed a marked atrophy in the fish treated with sct alone and serum calcium decreased significantly in this group. 4. immature female silver eel ...	1975	1201598
ultrastructural localization of synaptic input to the optic lobe of carp (carassius carassius).		1975	1204704
anaerobic metabolism in the carp (carassius carassius l.).		1975	1139891
morpho-histology of the intestine in a freshwater major carp, cirrhinus mrigala (hamilton) during the different life-history stages in relation to food and feeding habits.	the morpho-histology in relation to food and feeding habits of the intestine in the fry, fingerling and adult of cirrhinus mrigala (hamilton), a freshwater major carp, has been described. the intestine has been observed to be shortest in the fry (carnivorous) and longest in the adults (herbivorous) with intermediate values in the fingerlings (omnivorous). the mucosal folds of the intestine have also been observed to be adapted according to the nature of the dietary prevailing in the different li ...	1975	1200390
[triploidy in hybrids of carp with other representatives of the cyprinidae family].	as a result of remote hybridization of carp (cyprinus carpio l.) with the representatives of certain other subfamilies of cyprinidae a few viable f1 hybrids were obtained for the first time. these hybrids proved to be allotriploids. in the cross cyprinus carpio l. female x hemiculter eigenmanni (jord. et metz.) male the rate of survival of this year's brood was 0,5% of the fertilized eggs and 3n=128; whereas in the cross cyprinus carpio l. male x ctenopharyngodon idella (val.) female the rate of ...	1975	1218729
water flow dynamics in the respiratory tract of the carp (cyprinus carpio l.).	simultaneous measurements of water velocity in the buccal chamber, and buccal and opercular hydrostatic pressure of carp have revealed surprisingly high water velocities. the high flow velocities mean that, at times, the kinetic energy of flow makes a substantial contribution to the total fluid energy. this suggests that there may be unequal distribution of hydrostatic pressures within the buccal chamber. anatomical examinations showed that fluid channels in the buccal chamber and gill raker sie ...	1975	1214116
dynamic characteristics of the receptive field of l-cells in the carp retina.		1975	1210026
[an original aspect of the rod visual cell in the carp (cyprinus carpio)].		1975	816481
[the response of the hypophysis to exogenous gn-rh during the annual reproductive cycle of the carp cyprinus carpio l].	the response of the hypophysis to injection of homologous hypothalamic extract and of lh-rh was studied during the reproductive cycle of the carp cyprinus carpio l. it is maximal during the summer months, during the reproductive period. it is nil or weak during winter, the period of sexual inactivity. it appears in april-may when gametogenesis is initiated and the water temperature increase.	1975	808285
[effects of transections and electrical coagulations in the medulla oblongata upon the activities in the respiratory muscles of the crucian carp (author's transl)].	the following conclusions may be drawn from the results in this work. the respiratory cycles are formed by the neuronal machinery in the reticular formation under the posterior part of the vagal motor nucleus. the motor neurones or the neuronal networks composing the motor nucleus of the respiratory muscles tonically discharge the action potentials, when the neurones or the networks are released from the inhibitory influences of the interneurones connecting the neuronal machinery to the motor ne ...	1975	1238557
the unanswered question of high anaerobic capabilities of carp white muscle.		1975	1139461
genetic differences between the chinese and european races of the common carp. ii. multi-character variation-a response to the diverse methods of fish cultivation in europe and china.	the european and chinese races of the common carp and their f1 crossbreds were tested in five experimental environments. the two races differ widely and conspicuously in many characters. the chinese carp has poorer growth rate but higher viability and fertility, earlier sexual maturity, higher resistance to crowding, better adaptation to unfavourable pond conditions, higher seine escapability, longer body and larger weight differences between females and males. the crossbreds between the two rac ...	1975	1056321
genetic differences between the chinese and european races of the common carp.i. analysis of genotype-environment interactions for growth rate.	growth rate of 12 groups of common carp was measured at five experimental environments. three of the 12 tested groups were strains of the domesticated european race of the common carp, one group was a representative of the big-belly chinese race, and the remaining eight groups were f1 crossbreds among the european strains and between the european and the chinese races. the average growth rate over the five environments of the chinese big-belly was considerably poorer than that of the european ca ...	1975	1056320
the effects of some herbicides and pesticides on sodium uptake by isolated perfused gills from the carp cyprinus carpio.		1975	239812
vesicles carrying nuclear material in mature cyprinus carpio erythrocytes.		1975	166858
[turnover rates of proteins in liver, muscle and plasma in the carp (cyprinus carpio) submitted to a total and prolonged fast].		1975	236871
the histones of rainbow trout erythrocytes include an erythrocyte-specific histone.	the erythrocyte histones of rainbow trout were compared with those of goose by polyacrylamide gel electrophoresis. a band analogous to goose erythrocyte-specific histone v, but not identical in relative mobility or quantity, was found to be a component of trout erythrocyte histone. a similar component was also found in carp erythrocyte histone, but it was absent from trout liver histone. to reveal this band clearly, it was advantageous to displace the histone iii monomer by oxidation. to verify ...	1975	1192258
effects of external ions on the synaptic transmission from photorecptors to horizontal cells in the carp retina.	1. intracellular recordings were made from cones and horizontal cells of the isolated carp retina and the mechanisms of synaptic transmission from cones of horizontal cells were studied by changing the ionic composition of the external medium. 2. cones were depolarized and their light responses enhanced in low ca high-mg medium. in the same medium, in which chemical transmission is suposed to be blocked, horizontal cells were hyperpolarized and their light responses disappeared. 3. when the syna ...	1975	173833
a dynamic model of the receptive field of l-cells in the carp retina.		1975	1182232
structural states and transitions of carp hemoglobin.	the wide ligand affinity range previously observed for carp hemoglobin is bounded at both extremes by regions of constant affinity. within these regions, ph, organic phosphates, and the extent of ligand binding have no effect on the measured affinity and the cooperativity of ligand binding is greatly reduced or absent. the rates of co recombination to fully and partially unliganded carp hemoglobin, under various organic phosphate and ph conditions, are shown to reflect this behavior. constant ki ...	1975	240820
structure and innervation of extraocular muscles of carassius.	the extraocular muscles of the carp carassius contain two types of muscle fibre. large white fibres have ribbon-shaped peripheral myofibrils and triads located at the z line. small red fibres, rich in mitochondria, have polygonal-shaped myofibrils and triads at the a-i junction. silver- and cholinesterase-stained preparations show that the large fibres are innervated by axons which spiral around them and exhibit intense cholinesterase activity over long distances. axons supplying small muscle fi ...	1975	1184453
investigation of some physico-chemical properties of muscular parvalbumins by means of the luminescence of their phenylalanyl residues.	the influence of ph, temperature and ca2+-release on the phenylalanyl and tyrosyl fluorescene of muscular parvalbumins from white muscles of hake and carp has been investigated. within the ph range from 7 to 8, ca2+-saturated parvalbumins show a conformational change registered by fluorescence, that is associated with the release of some of the bound ca2+. removal of ca2+ by means of egta (ethyleneglycolbis-(aminoethylether)tetra-acetic acid) considerably narrows the region of protein nativity, ...	1975	238652
[influence of some pesticides on the ontogenesis of carp].		1975	1216612
blocking and overshadowing in two species of fish.	in experiment 1, a mixed blocking-overshadowing effect of color on an auditory discrimination was demonstrated in goldfish. in experiment 2 (with lines differing in color and angle), blocking of angle by color and of color by angle was demonstrated in goldfish, in experiment 3 (again with lines differing in color and angle), overshadowing of angle by color was demonstrated in carp, but the same animals (like goldfish in a previous study) failed to show greater intradimensional than extradimensio ...	1975	1151288
temperature dependence of cleavage rates in carp, pike, and whitefish.	the time taken by the first four cleavage divisions has been determined for the carp, pike, and whitefish (coregonus peled) at various temperatures; a quantity tau-0 was calculated, and plotted against temperature. from the curves plotted for all species investigated, it was found that in the salmon but not in the more thermophile species the rate of division within the spawning temperature range could be described by a constant q 10 which had a value exceeding 2 or 3. criteria for determing the ...	1975	1114350
[effects of insulin on the protein metabolism of carp liver].	studies on protein metabolism in carp liver under influence of insulin injections have been carried out. protein turn-over is significantly reduced by insulin; in fact, half-life of tritiated proteins is increased to twice the controls value. furthermore, electron microscopic studies of nucleolus suggest an enhancement of proteosynthesis. our findings, similar to those generally described in mammals are in good accordance with the rise of protein amount. with regard to the strong drop of carpe l ...	1975	132256
[ultrastructure and functions of the cells of proximal and distal segments of the nephron of anadromous and freshwater fishes].	in the carp kidney, the proximal tubule cells have no infoldings of the basilar plasmatic membrane. in the salmonidae nephrons the numerous parallel membranes of proximal tubule cell are formed by foldings of the basilar plasmatic membrane with numerous mitochondria in between. in o. nerka and s. malma experiments with mgcl2 injection showed that their kidneys secrete magnesium in contrast to the carp kidney. the numerous invaginations of proximal tubule cells membrane are suggested to be a morp ...	1975	1145756
[partial characterization of a hypothalamic gonadotropic hormone releasing factor in carp (cyprinus carpio l.) studied in vitro].		1975	1132656
[ induction of pituitary gonadotropin discharge in the carp (cyprinus carpio l.) with the aid of cisclomiphene citrate].		1975	1132655
the central projections of the trigeminal, facial and anterior lateral line nerves in the carp (cyprinus carpio l.).	the central projections of the trigeminal, facial and anterior lateral line nerves were studied in the carp (cyprinus carpio) by the nauta and fink-heimer silver techniques following rhizotomy. degenerating trigeminal fibers were found projecting on the nucleus of the descending trigeminal root and on the medial funicular nucleus. the former can be subdivided in five portions lying dorsal to the various cranial motor nuclei. the afferent facial fibers could be traced into the facial, glossophary ...	1975	1112930
prevention of freeze denaturation of carp actomyosin by sodium glutamate.	1) denaturation of carp actomyosin during storage at -20 degrees was studied with particular interest in the cryoprotective effect of sodium glutamate, the most cryoprotective of the compounds tested previously. 2) storage with glutamate prevented the rapid decrease in solubility, viscosity, and atpase (ec 3.6.1.3)activity of actomyosin during storage. ultracentrifugal studies suggested that aggregation occurred in the frozen state without glutamate, but that added glutamate prevented aggregatio ...	1975	125275
crystalline adenylate kinase from carp muscle.	1. the concentration of adenylate kinase in carp muscle is about 0.3 mg/g. an improved isolation procedure makes use of a dilute solution of the substrates, atp and amp, to elute the enzyme from a phosphocellulose column in overall yields of 60% before crystallization. by the hexokinase--ph-stat assay the specific activity is 3550 units/mg. the preparation has been found to be essentially homogeneous by dodecylsulfate gel electrophoresis, isoelectrofocusing and gel filtration. 2. the molecular w ...	1975	164348
[electromyographical studies on the swimming movement of carp. ii. pectoral fin movement (author's transl)].		1975	1237055
[the ultrastructure of carp granulocytes].		1975	1131027
slow piii component of the carp electroretinogram.	the slow piii component of the electroretinogram (erg) was studied in the isolated, aspartate-treated carp retina. although the latter is richly populated with cones, slow piii appeared to reflect almost exclusively the activity of rods; e.g. the spectral sensitivity of the potential paralleled closely the rod pigment curve, its operating range (i.e. the v-log i curve) was limited to 3 log units above absolute threshold, and raising background intensities to photopic levels produced saturation o ...	1975	1117278
proprioceptive motor control in fish respiration.	the response of single respiratory neurones in the medulla oblongata of carp to short twitches of individual respiratory muscles were analysed. the muscle contractions were obtained through automatic electrical stimulation and could be consistently elicited in a predetermined phase relation to the ventilatory cycle. the results show that, apart from nerve cells which take part in long-term processing of proprioceptive information from several sources, neurones also exist which possess the proper ...	1975	168305
[control of respiration in teleostean fishes: existence of chemoreceptors, physiologically analogous to those of higher vertebrates].	injection of nacn or lobeline into the ventral aorta of the trout or carp provokes hyperventilation and bradycardia within 5 seconds, responses which are the weaker the higher the oxygen tension of the ambient water. the reactions, precisely similar to the chemoreflexes of higher vertebrates, suggest that these fish also possess arterial chemoreceptors.	1975	806384
[control of the respiration in teleostean fish: respiratory reactions to abrupt changes in the oxygenation of the medium].	in the trench, carp and trout, an abrupt change in the partial pressure of ambient oxygen leads to a change in arterial oxygen tension which, within 1.5-2.6 seconds, elicits cardiac and ventilatory reactions. by their short latency, these responses may be explained as a modification of chemoreceptor activity, and resemble respiratory chremoreflexes of higher vertebrates.	1975	808333
terbium replacement of calcium in carp muscle calcium-binding parvalbumin: an x-ray crystallographic study.		1975	1237627
quantification of phase improvement in the tangent formula application to carp muscle calcium-binding protein.		1975	1237626
refinement of the structure of carp muscle calcium-binding parvalbumin by model building and difference fourier analysis.		1975	1237625
ultrastructural aspects of mature cyprinus carpio erythrocytes.		1975	1242080
variability of intermuscular bones, vertebrae, ribs, dorsal fin rays and skeletal disorders in the common carp.	the number of intermuscular bones, vertebrae, ribs, dorsal fin rays and an index of bone disorders were determined from x-ray photographs of over 1000 common carp. these carp represented a broad genetic range, including five distinct lines of the domesticated european carp, one group of the chinese race big-belly and 12 crossbreds. the genetic, and even the phenotypic, variation in intermuscular bones were much smaller than those found in earlier experiments. variation of other bone characters w ...	1975	24419604
[diploid radiation gynogenesis in carp. i. massive production of diploid gynogenetic progeny].	mass lost of diploid gynogenetic carp offspring were obtained with the use of fish-farm method of reproduction. the average yield of gynogenetic diploids in usual experiments was 0.1% (from fertilized eggs). the cooling of unfertilized spawn (at the stage of metaphase ii) to 8--10 degrees c during 3.5--4.5 hours in 50% of cases permitted to increase by tens of times (in the most successful experiments up to 8%) the yield of gynogenetic diploids. the rate of survival of carps remained relatively ...	1975	1218724
[peptide hydrolase activity during embryonic carp development].	it was established that in the carp the process of embryonic and early postembryonic development was accompanied by the increase in the activity of both the trypsin- and chemotrypsin-like peptide hydrolases. this increase is most evident in larvae with resorbing yolk. the total and protein nitrogen content suffers no changes during embryonic and early postembryonic development. the content of non-protein nitrogen increases from the stage of the middle of segmentation on attaining the maximum lev ...	1975	1214997
[structural and immunochemical studies of the immunoglobulins of carp (cyprinus carpio l.) ii. analysis of the subunits].	the 14 s immunoglobulin of the carp (cyprinus carpio l.) was split into subunits with 0,01 m dithioerythritol. these 5,7 s subunits have a molecular weight of 104 000 and a hexose and hexosamine content of 6.2%. it is likely that the subunits represent hl-half-molecules and not h2l2-monomeres. the values for the molecular of h- and l-chains were 77 000 and 24 000, respectively.	1975	1210999
structural homology of myosin alkali light chains, troponin c and carp calcium binding protein.		1974	4437613
[comparative study of the myofibrils of white, cardiac and red muscles of carp, using polyacrylamide gel electrophoresis].		1974	4142736
[light chain myosin of carp white muscle].		1974	4142732
[separation and reassociation of gonadotropin subunits of a teleostean fish, the carp (cyprinus carpio l.)].		1974	4218533
letter: carbon magnetic resonance study of the conformational changes in carp muscle calcium binding parvalbumin.		1974	4474190
conformations of carp muscle calcium binding parvalbumin.		1974	4425648
magnification through competition of genetic differences in yield capacity in carp.		1974	4531427
[biochemical studies of the genetic differentiation of central american carp (cyprinodontiformes, poeciliidae)].		1974	4445816
[renewal of carp (cyprinus carpio l.) intestinal epithelium. seasonal influence].		1974	4219313
[proceedings: vibration potentials of the olfactory cord and bulb of the carp].		1974	4478393
[proceedings: re-examination of horizontal cells of carp by means of procion yellow electrodes].		1974	4478368
[proceedings: composition of color receptor areas in amacrine cells in carp retina].		1974	4478367
proceedings: analysis of photic responses of the inner layers of retina of the carp.		1974	4478366
proceedings: effect of aerosol and local administration of amino acids on the retinal photic responses in the carp.		1974	4478365
[proceedings: effect of drugs on bipolar cells of the carp retina].		1974	4478364
sound reception and processing in the carp: saccular potentials.		1974	4153677