Publications

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binding of calcium by parvalbumin fragments.parvalbumin fragments from carp pi 4.47 parvalbumin corresponding to its residues 1--75 and 76--108 bind ca2+ with affinities corresponding to kd 0.9 . 10(-4) m and kd 3 . 10(-3) m, respectively.1978623786
carp connectin: amino acid composition.an elastic protein, connectin, was prepared from carp skeletal muscle by the alkaline method with some modifications; collagen contaminations were exhaustively extracted with 1 n acetic acid and hot phenol treatment was omitted. this connectin preparation contained a considerable amount of tryptophan, but almost completely lacked hydroxyproline.1978624709
the receptive field structure of visual cells from the optic tectum of the freshwater perch (perca fluviatilis).recordings from the intrinsic tectal cells of the perch have allowed a classification of visual units on the basis of receptive field type. comparisons with retinal and tectal cells in carp, goldfish, pike, trout and in the anura were made. most striking are cells with vertical bar-shaped features forming part of the r.f. the relation between the receptive fields of units lying adjacent within the tectum, suggests that parts of the same pattern are derived from cells within the same vertical col ...1978626899
inhibition of gluconeogenesis and glucagon-induced hyperglycemia in carp (cyprinus carpio l.). 1978631544
[action of strontium-90 and metaphos on cyprinus carpio]. 2013635143
uptake and accumulation of 14c-rotenone in carp. 1978635235
extraocular muscle representation in the brainstem of the carp.the representation of the extraocular muscles in the oculomotor nuclei in the brainstem of the carp was studied with the horseradish peroxidase technique. some normal anatomical features of the various oculomotor nuclei are described. following intramuscular hrp injections in the eye muscles and applying survival times of up to 25 days labeled perikarya were found in the various nuclei of the oculomotor complex. rectus inferior, rectus internus, and obliquus inferior are represented in the ipsil ...1978641230
lipid adaptation in liver mitochondrial membranes of carp acclimated to different environmental temperatures: phospholipid composition, fatty acid pattern and cholesterol content.the lipid fraction of liver mitochondria has been studied in carp acclimated to high and low environmental temperatures. evidence is provided for a temperature-induced lipid adaptation which might control membrane fluidity. this supports suggestions made in a recent communication on temperature-induced changes in the arrhenius functions of mitochondrial oxidase systems from carp liver ((wodtke, e. (1976) j. comp. physiol. 110, 145--157). the results of the analysis of lipid composition are: the ...1978656457
dual actions of some amino acids on spike discharges in the carp retina.the effects of some amino acids (glu, gly and gaba), applied in 3 different manners (electrophoretically, in the superfusate and by pressure-microinjection), were investigated on spontaneous and light-induced spike discharges in the isolated carp retina. when applied electrophoretically or by pressure-microinjection in the inner plexiform layer (ipl), the agents acted directly on spike-generating units. electrophoretic application of glu at ipl consistently increased while gly and gaba always de ...1978656933
an electrophysiological study on the cholinergic system in the carp retina.the effects on spike discharges of acetylcholine chloride (ach), applied electrophoretically at the inner plexiform layer, were examined in air-exposed and superfused preparations of the isolated carp retina. most of spike-generating units examined (147 of 204 units; 72%) were sensitive to electrophoretically applied ach. among the ach-sensitive ones, 125 units (85%), including all on-center, most on-off and two-thirds of off-center units, were activated, whereas 22 units (15%), including mainly ...1978656934
effects of extrinsic horizontal cell polarization on spike discharges in the carp retina. 1978656935
distribution of fibres reacting with an alpha-endorphin antiserum in the neurohypophysis of carassius auratus and cyprinus carpio.a strong positive immunoreaction with an alpha-endorphin antiserum occurs in two distinct sites of the goldfish and carp neurohypophysis. fluorescent nerve terminals are found in the laminar nerve processes located in the rostral pars distalis, but the immunocytological reaction is mainly localised on the nerve processes of the posterior neurohypophysis lying between the intermediate lobe cells. almost all the digitations of the neurohypophysis are strongly fluorescent. the immunoreactive fibres ...1978657242
the effect of methallibure (i.c.i. 33,828) on the steriodogenesis in the ovary and testis of a fresh water teleost, cyprinus carpio.methallibure treatment of mature cyprinus carpio causes a marked reduction in the steroidogenesis, as indicated by the fall in 3beta-hsd activity in the gonads. significance of these results is discussed.1978658313
[diploid radiation gynogenesis in carp. iii. analysis of gynogenetic progeny by biochemical markers].studies have been carried out on carp gynogenetic offspring by four autosome genes: tf (transferrin), est(s) (muscle esterases, slow), est(f) (muscle esterases, fast), my (myogenes). homozygosity and phenotypical homogeneity by all the loci studied are established for carps of the second generation of the induced gynogenesis. in the first generation obtained from heterozygous females, the correlation of homozygous offspring of two classes corresponding to the theoretically expected one (1:1). he ...1978658664
synthesis of carp proinsulin in xenopus oocytes.total poly(a)-containing rna from brockmann boides of carp (cyprinus carpio) directs the synthesis of authentic carp proinsulin in xenopus oocytes. neither preproinsulin nor further processing of the proinsulin to insulin can be detected in the oocytes.1978668692
the effect of training on the swimming muscles of the goldfish (carassius auratus).goldfish (carassius auratus) were exercised continuously for periods of 28 days at swimming speeds of 1.5, 3.0 and 4.5 body lengths per second and their rates of growth were determined. changes in muscle fibre size were examined, as were changes which occurred in the concentrations of the major chemical constituents of these cells. these fish, typical of the carp family in that they are found only in still or slowly moving water, did not adapt well to the flowing water environment at any swimmin ...1978670869
[responses of carp olfactory receptors to different classes of chemical substances]. 1978680284
[ultrastructural and histochemical aspects of the rodlet cells from the bulbus arteriosus of cyprinus carpio l. (pisces: cyprinidae) (author's transl)].morphological details of the "stäbchendrüsenzellen" (plehn), rodlet cells syn. pear-shaped cells of the endothel from the bulbus arterious of carps were studied in the electron microscope. from morphological characteristics, especially from the development of desmosomes with adjacent endothelial cells, it becomes evident, that the cells in question, which are very common in teleostei, are not of parasitic nature. specific protrusions of the apical cell poles towards the arterial lumen are indica ...1978686392
afferent and efferent fiber connections of the carp torus longitudinalis.the efferent and afferent pathways of the carp torus longitudinalis were studied by means of degeneration and retrograde hrp methods. efferent projections were only seen in the most superficial layer of the ipsilateral optic tectum (stratum fibrosum marginale). afferent pathways to the torus longitudinalis were found to originate mainly in the valvula cerebelli. degenerating fibers course in the tractus mesencephalocerebellaris posterior within the valvula, and join the tractus mesencephalocereb ...1978690274
[reversibility of strontium-90 and metaphos action on cyprinus carpio]. 2013693832
[experimental transmission of spring viraemia of carp through carp lice (angulus foliaceus)]. 1978696075
[cytochemical studies on blood cells of 3 teleost species (carp--cyprinus carpio l., rainbow trout--salmo gairdneri richardson and pike--esox lucius l.)]. 1978697717
olfactory neuroepithelioma in a domestic carp (cyprinus carpio).a well-differentiated olfactory neuroepithelioma was found protruding from the left olfactory fossa of a 6-year-old domestic multicolored carp, cyprinus carpio. following diagnostic biopsy the neoplasm continued to grow. at necropsy, the tumor was found to extend beyond the olfactory chamber into the intracranial portion of the olfactory bulb, but no distant metastases could be detected. histologically, the neoplasm had a remarkably organoid appearance, being composed of imperfect reproductions ...1978698944
partial trisomy of the short arm of chromosome 7 due to a familial translocation rcp(7;14)(p11;p11).a boy with trisomy of the short arm of chromosome 7 is reported. he presented several congenital malformations, such as: dolicocephaly; wide fontanelle; hypertelorism; antimongoloid slanting of the palpebral fissures; small, carp-shaped mouth; thin neck; extrinsic compression of the oesophagus; congenital dislocation of the shoulders and hips; and a possible cardiac defect. the proband's mother had a balanced translocation involving the short arm of chromosomes 7 and 14. in this family the trans ...1978699358
occurrence of catecholamine-containing specific granules in the venous endothelia of carp.the formaldehyde-induced fluorescence technique and the argentaffin reaction with ultra-thin sections were applied to the vessels of carp to demonstrate the presence of a catecholamine. after formaldehyde gas treatment for 30 minutes at 50 degrees c, the venous endothelia emitted a greenish-yellow fluorescence suggesting the presence of a primary catecholamine. in the endothelial cells of veins, the specific granules, consisting predominantly of spherical granules with a diameter of about 0.3 mi ...1978707309
primary structure of hemoglobin from trout (salmo irideus). amino acid sequence of alpha chain of hb trout i.the amino acid sequence of the alpha chain of the hemoglobin component of trout's blood which is devoid of heterotropyc phenomena, i.e. hb trout i, is presented. the sequence has been determined by analyzing the soluble tryptic peptides obtained from the whole globin and the peptides obtained after redigesting the insoluble 'core' with chymotrypsin. alignment of the peptides with the structure of human as well as carp and catostomus clarkii alpha chains shows that hb trout i alpha chain differs ...1978708770
synchronized rhythmic discharges of the secondary olfactory neurons in carp.(1) rhythmic and synchronized multiunit bursts of spike discharges, which were superimposed on the peaks of the oscillatory potentials of 4--10 hz (olfactory tract waves), were induced in the olfactory tract fibers of the carp in response to olfactory stimulation. suppression of the spike discharges was observed during the interburst periods of discharges. (2) single-unit analysis revealed three types of discharge patterns in the olfactory tract fibers in response to olfactory stimulation: rhyth ...1978709369
body colour response of the carp (cyprinus carpio) during asphyxia.the body colour of immobilized carp was photoelectrically measured simultaneously with heart rate in order to examine one of the effects of asphyxia on autonomic functions of the cutaneous region. 1) asphyxia induced marked body colour darkening and bradycardia. 2) adequate increase in cardiac vagal activity was recorded during asphyxic bradycardia. 3) after atropine injection, body colour darkening, as in intact fish, was observed during asphyxia while heart rate was not changed. 4) after trans ...1978713179
fluorescence microscopic studies on sulphomucous of the alimentary canal in an indian freshwater major carp, cirrhinus mrigala (hamilton) by ferric alum-coriphosphine and coriphosphine-thiazol yellow methode. 1978714255
[instrumental conditioned reflexes to salt and acid stimuli in carp].in experiments on unrestrained carps, a comparative study was made of the analysis of different concentrations of nacl and hcl (starting with threshold ones) by means of instrumental conditioned reflexes, aimed at eliminating harmful chemical stuffs from water medium. salt concentrations, in response to which the formation of a conditioned reflex is possible (3--9 mm) are by an order higher than those for the acid (0.3--0.85 mm). the intensity and duration of manifestation of the defensive condi ...2015716591
effects of vitamin a administration upon ito's fat-storing cells of the liver in the carp.in the normal carp livers, ito cells (fat-storing cells) could be identified with light and electron microscope within the hepatic sinusoidal wall and actually in the disse's space, but they were almost lacking lipid droplets in the cytoplasm (empty ito cells) in contrast to the majority of vertebrate species. after administration of large doses of vitamin a, fat droplets appeared in hypertrophic cytoplasm of enlarged ito cells, and their size and number increased roughly in proportion to the am ...1978718387
radioelectrophoresis: a specific microassay for parvalbumins. application to muscle biopsies from man and other vertebrates.a two-dimensional radioelectrophoretic method is described, by which parvalbumins from minute biopsy samples (approx. 50 mg) can be detected and quantitated by their 45ca2+-binding properties. in the first dimension, parvalbumins are purified by sieving through a gradient polyacrylamide gel and collected at the bottom of the electrophoresis tubes. the second dimension is a disc electrophoresis in the presence of 45ca2+. parvalbumins can thus be identified and quantitated by three criteria: low m ...1978718978
the effect of fenitrothion on reproduction of a teleost fish, cyprinus carpio communis linn: a biochemical study. 1978719191
autonomic response of the fish to pyrogen.lipopolysaccharide (lps) applied to the anterior brainstem of the carp caused lightening of body colour. this indicates that an increase in set point temperature is responsible for increased cutaneous autonomic activity following lps-administration.1978720514
[comparative characteristics of neuronal response in the vagus and facial nerve lobes of carp medulla oblongata to chemoreceptor stimulation].the unit activity in the vagal lobe of medulla oblongata in response to stimulation of the mouth cavity and gills chemoreceptors with solutions of hydrochloric acid and sodium chloride was studied in immobilized carps and compared with those in the facial lobe in response to skin chemoreceptors stimulation. the firing rate in the vagal lobe is lower and the latent period is longer than in the facial lobe. the level of the chemical stimuli gradations analysis is different in two parts of the chem ...1978724004
latency measurement of the color coded s-potentials in the carp retina. 1978726289
appraisal of the pam cell effect as a diagnostic test for multiple sclerosis.the selective reduction of pam cell yield reported by carp and associates in the presence of tissue from patients with multiple sclerosis (ms) has been attributed to replication in culture of a viral agent associated with ms (msaa). we investigated the diagnostic potential of the pam cell effect in ms and in optic neuritis (on). six serum and 7 csf samples from 7 patients with ms, 3 serum and 3 csf samples from 4 patients with idiopathic on, and 4 sera from 4 patients with on induced by ethambut ...1978727719
[correlative growth of body weight and brain in carp fry]. 2006729524
[biology of khawia japonensis (caryophyllidea, cestoda), a parasite of the amur carp].the development of the cestode khawia japonensis (yamaguti, 1934) has been studied experimentally. at 18 to 26 c, in 12-14 days oncospheres develop in eggs, whose infective properties manifest themselves in 30-31 days. in the caudal segments of limnodrilus udekemianus they penetrate the body cavity through the intestinal wall and migrate to the anterior margin as they mature. in 55 to 60 days (at the same temperature) mature proceroids become localized in 9-12 segments. the development of embryo ...2007733320
[interrelationships of the neurosecretory cells and capillaries in the preoptic nucleus of the carp].three layers are tentatively recognized in the wall of a blood capillary of nucleus praeopticus (np) of the carp, cyprinus carpio l: the inner layer--endothelium, the middle layer--basement membrane with pericytes, and the outer broken layer containing mostly leucocytes and fibroblast-like cells. 1). the plasmalemma of the neurosecretory cells (nsc) makes a direct contact with a capillary: (a) with the plasmalemma of a sole-like process of the endothelial cell (0.1%), (b) with the basement membr ...1978734769
[structural and immunochemical studies on carp (cyprinus carpio l.) immunoglobulins. iv. in vitro reassociation of carp immunoglobulin].mildly reduced high molecular immunoglobulin and antibody of carp with tetrameric structure, carbohydrate content of 6 to 7% and absence of j-chain can reassociate to native molecules. the disulphide bonds between subunits and polypeptide chains are sensitive and can be completly splitted by treatment with only 1 mm dte. one half of the immunoglobulins retained their high molecular structure as expression of strong non-covalent bonds between subunits of the tetrameric molecule. the other half of ...1978735618
cell types and glycoprotein cytochemistry in the carp adenohypophysis (cyprinus carpio l.). 1978737674
gas exchange in the carp gills in normoxic and hypoxic conditions.respiratory exchange measurements in a teleost fish, cyprinus carpio, in normoxic and hypoxic conditions are presented. oxygen pressure in the dorsal aortic blood in normoxic carp was much lower than that in most of teleosts and elasmobranchs in similar conditions. the most evident physiological adjustment to the hypoxic condition was the increased ventilation due to an increased frequency of operation of the branchial pump. increased perfusion at the gills played a small role in the physiologic ...1978741107
[toxicity of lead nitrate to the carp (cyprinus carpio l.). effect on respiratory metabolism and histological structure of gill lamellae (author's transl)].oxygen uptake of gills was estimated after lead poisoning of the carp. histological structure of gill lamellae was also examined. oxygen uptake quickly decreased after two weeks then increased again in long term poisoning without total recovery. on the other hand, desquamation of the gill epithelium was observed as well as proliferation of mast cells probably loaded with lead. the return to clean water for eleven weeks, allowed the lamellar epithelium recovery but not the mast cells elimination.1978741474
[experimental poisoning of carp fingerlings (cyprinus carpio l.) with the herbicidal preparation, lasagrin (alachlor)].the acute intoxication of k1 carp (cyprinus carpio l.) with the herbicide preparation lassagrin (alachlor) was studied under experimental conditions in a laboratory. used were a total of 360 young carps of 10 g each, measuring 9-10 cm. the experiments were carried out in 30-1 glass aquariums that were preliminary filled with water that was adequately heated and deprived of chlorine at ph = 6.9, t0c = 18-20 degrees c, o2 = 10.4 mg/1; hardness = 1.5 german degrees. the preparation was directly pla ...1978741634
abnormality in body curvature of cyprinus carpio after injection of anaesthetics.abnormalities in the body curvatures were noticed in cyprinus carpio after the injection of anaesthetics, viz. paraldehyde, tertiary butyl alcohol and butanol. these abnormalities occurred behind the dorsal fin and progressively developed over a period of four months. the abnormalities affect the locomotion and speed of swimming of the fish and appear to be due to toxic effects of the anaesthetics.1978742410
[on--off impulse activity of carp retina amacrine cells].properties of spontaneous and light-evoked spikes of the "on--off" amacrine cells of the carp retina were studied. it was assumed that the dendrites of amacrine cells generated spike potentials and conducted them to the cell body. the data obtained suggest that the dendrites of amacrine cells have many spike-generation zones and that the transient depolarization component of the amacrine response to light is the compound spike consisting of many separate spikes generated in different parts of th ...1978744273
[demonstration of a rhabdovirus-carpio infection in the carp during autumn]. 1978747627
polymorphism of a, b and c loci of lactate dehydrogenase in european fish species of the cyprinidae family.in 24 fish species of the cyprinidae family, belonging to 21 genera, isoenzyme patterns of lactate dehydrogenase (ldh) were determined, which could be classified in the majority of cases into 3 main groups. isoenzyme patterns in natural hybrids of roach and rudd, roach and bream, roach and bleak were also analysed. in bitterling, polymorphism was observed in b locus of ldh. in white bream polymorphism exists in the a locus. in bream, rudd, silver carp and barbel polymorphism was found in c loci. ...1978751530
herpesvirus-associated epidermal hyperplasia in fish (carp). 1978751904
[histological and histochemical studies on the detection of the esogaster in the agastric cyprinidae aristichthys nobilis rich. (marble carp)].in postnatal aristichthys nobilis rich. oesogaster was proved by histological and histochemical methods. during the larval development oesogaster becomes reduced completely in cranial direction. the statement is demonstrating the secondary character of lost stomach in phylogeny of this fish species.1978753692
isolation and quantitative determination of sex hormones in carps (cyprinus carpio l.).changes in the oestrogen and progesterone level in the blood and ovarian tissue of mature carps from fish farms were examined using gas chromatographic method, before and after spawning as well as under wintering. due to the high individual variation the observations cannot be regarded as quantitative. the highest oestrogen level was found before spawning, both in the ovaries and the blood, this level was somewhat lower after spawning and did not show any further change under wintering. the rest ...1978754414
fluorine content of foods and the estimated daily intake from foods.the f content of rice, rye, bread, wheat flour, rolls and wheat bread was found to be: 0.42, 0.31, 0.28, 0.28 and 0.22 mg/kg raw weight, respectively. among foods of animal origin the f content of fish was the highest: mackerel in oil 7.28 mg, and carp 2.02 mg/kg. mutton contained 0.71, meat tissues of pig 0.36, other meats and meat tissues less than 0.36, while egg only 0.12 mg/kg raw weight. eight different dishes of soups, nine cooked vegetables and sauces, and ten other dishes of cooked food ...1978754477
electrically evoked responses (e-responses) of l-and c-type horizontal cells in the carp retina.electrically evoked responses (e-responses) of l-and c-type horizontal cells produced by transretinal stimulation were studied under chromatic illumination in the carp retina. from the examination of e-s relations (e-response verus s-potential) and of the shape of both responses the following results were obtained: (1) equilibrium potential of subsynaptic membrane is estimated as 0 to 10 mv above zero membrane potential. (2) l-cells receive signals from red-and probably from green-sensitive cone ...1978755288
effects of gaba on neuronal activities in the distal retina of the carp.when a transient depolarization was evoked in horizontal cells by a transretinal current pulse, a small hyperpolarizing deflection (probably ipsp) was detected in cones. the ipsp was abolished by superfusion of the retina with gaba-containing ringer solution, which also hyperpolarized the cones. these results suggest that, in the dark, a gaba-mediated negative feedback was operating from horizontal cells to cones, and terminated in the light. application of gaba also caused remarkable changes in ...1978755289
ionic mechanisms underlying the center and surround responses of on-center bipolar cells in the carp retina.reversal potentials were measured for the center and surround responses of on-center bipolar cells in the carp retina. in the scotopic condition, the center response showed a reversal at 29 +/- 13mv, the surround response at 38 +/- 13 mv. the result suggests that both the center and surround responses were -53 +/- 11 mv and -59 +/- 11 mv, respectively. these responses were sensitive to the red light. it is therefore suggested that both the center and surround responses contributed by rods are me ...1978755291
receptive field arrangement of color-opponent bipolar and amacrine cells in the carp retina.seven color-opponent bipolar and 50 color-opponent amacrine cells were identified in the carp retina and their spectral responses examined by using procion-dye-filled micropipets for staining and recording. four of the bipolar cells had a +r-g-and three a +y-b-type chromatic center. six of the bipolar cells showed hyperpolarizing non-color-opponent surrounds, while one +r-g-type cell had a +y-rb-type surround. this cell showed the greatest complexity of all bipolar cells identified so far, and i ...1978755292
convergence of rod and cone signals to single bipolar cells in the carp retina. 1978755293
hydrolysis and synthesis of wax esters by different systems of carp hepatopancreas preparation.it was found that the supernatant of hepatopancreas homogenate of the carp, cyprinus carpio, contained enzymes involved in the hydrolysis and esterification of wax esters. the enzymes were salted out by 30% saturation with ammonium sulfate. this fraction also contained the highest activities of lipase and esterase. the enzyme for the hydrolysis of wax esters, together with lipase and esterase, was eluted in tube numbers 20 to 22 (void volume) from a sephadex g-200 column. on the other hand, the ...1979762038
proprioceptive reflex connections of head musculature and the mesencephalic trigeminal nucleus in the carp.the location of the sensory cells concerned with the proprioception of respiratory and extraocular musculature in the carp was studied by retrograde transport of horseradish peroxidase. sensory cell labeling after intramuscular hrp injection was exclusively found in the trigeminal-facial-anterior lateral line ganglion complex. the muscles innervated by the trigeminal system are represented in the more rostral ganglion areas, the muscles innervated by the facial system in the more caudal ganglion ...1979762276
the gonadotropic cells in the pituitary of the black molly, mollienisia latipinna, and other teleosts, identified by the immunofluorescence technique in normal and androgen-treated animals.using anti-carp-gonadotropic-gamma-globulin, the indirect immunofluorescence technique was applied to sections of the pituitary of 12 teleost species. from the investigated species, the poeciliinae, and especially the black molly, showed a distinct localization of fluorescent cells in the mesoadenohypophysis. strong fluorescence was observed in the ventralmost region, containing the presumed gonadotropic cells; weak fluorescence was observed in the dorsal region, in the presumed thyrotropic cell ...1976769990
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 ...1975786713
[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 ...1975788423
evidence for the synthesis of a precursor of carp proinsulin in a cell-free translation system. 1976791674
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 ...1976795640
[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.1975806384
[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.1975808285
[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.1975808333
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.1975811150
[an original aspect of the rod visual cell in the carp (cyprinus carpio)]. 1975816481
[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.1976816536
[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 ...1975818982
[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 ...1976819151
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 ...1976828131
spreading depression in isolated carp retina.(1) spreading depression (sd) could be elicited in isolated carp retina by kci application, the concomitants of which were similar to those described in other vertebrates. (2) the threshold for generating sd was greatly reduced by brief immersion of the retina in low ci-ringer's solutions. the properties of sd waves were almost the same with treated and untreated retinas, except for intervals. (3) extracellular negative potential shifts during sd, averaging 4.6 mv in amplitude and 27 sec in dura ...1977832120
[rhythmic activity of individual elements of the isolated carp retina].at the level of photoreceptor, bipolar and ganglion cells of the carp isolated retina displayed intracellular oscillations of two types: with frequency of about 6-12 hz, continuously generated in darkness, suppressed by light and slowly recovering, and oscillations with frequency of about 20-50 hz, observed during swithching on and off of light. the latter are components of responses to light of bipolar, amacrine, and ganglion cells. possible role of different structures of the retina in generat ...1977832751
secondary-structure predictions of calcium-binding proteins.the known tertiary structure of carp muscle parvalbumin is consistent with an "ef-hand" architecture (helix-loop-helix) for each calcium-ion binding site. primary-sequence alignments have indicated four ef hands in rabbit skeletal muscle troponin c and in rabbit myosin alkali light chains. five secondary-structure prediction methods, based on amino acid sequence only, have been fully computerized and used to calculate joint prediction histograms for several calcium-binding proteins. the joint hi ...1977836806
mercury levels in freshwater fish of the state of south carolina.samples of fish from freshwater sources of rivers, lakes and ponds all over the state of south carolina were collected during the summer of 1974 and 1975. the fish collected were bass, bluegill, redbreast, catfish, shad, carp, crappie, mudfish and pike. samples were analyzed using the flameless atomic absorption procedure outlined by hatch and ott, and uthe et al as modified for use with perkin-elmer, coleman mas-50 mercury analyzer. triplicate samples of fish tissue were analyzed by wet digesti ...1977836979
[rhythmic activity in the retina of fish evoked by adequate stimulation].distribution of evoked rhythmical responses over the retinal surface and depth was investigated in carp and tench by recording the local electroretinogram and spike activity of ganglion cells. the dependence of the response amplitude-frequency characteristics upon the stimulus intensity and duration was also studied. the rhythmical responses to light "on" and "off" stimuli differed in a number of features, particularly in patterns of their distribution among cellular and synaptic retinal layers. ...1977840330
[increments of body composition in carp receiving feed of various protein contents]. 1977844754
[starvation metabolism in carp]. 1977844756
identification of amacrine and ganglion cells in the carp retina.1. amacrine and ganglion cells in the carp retina were identified from such criteria as photoresponses, intracellular dye staining, responses to optic nerve stimulation and behaviour to a synapse blocking agent. 2. responses of ganglion cells were accompanied by spike discharges., either facilitated or suppressed by photic stimulation. the cells were also invaded by antidromic impulses, which survived after chemical synapses had been blocked by application of atomized cocl2 solution. in subseque ...1977845825
subcellular distribution of purine degrading enzymes in the liver of the carp (cyprinus carpio i.). 1977855707
[several acoustic properties of the carp, cyprinus carpio, swimbladder]. 2006868399
histone 5 from carp erythrocytes.histone 5 (h5) has been isolated from carp (cyprinus carpio) erythrocytes and identified by its amino acid composition. it was found in very small relative amounts, despite the use of either 50 mm sodium bisulfite or 1.0 mm phenylmethylsulfonyl fluoride to inhibit endogenous protease activity. carp h5 differed significantly from h5's of other lower vertebrates in its amino acid composition, position of elution from amberlite cg-50 ion-exchange columns, and its unusually high electrophoretic mobi ...1977870148
[size of eggs and larvae of female carp of different ages under normal conditions and following exposure to an elevated dose of zinc sulfate]. 1977871476
supplementation of a semipurified casein diet for catfish with free amino acids and gelatin.semipurified diets with casein as the sole protein source were supplemented with gelatin, arginine, cystine, methionine or tryptophan, and fed to channel catfish (ictalurus punctatus) fingerlings. increasing the arginine level from 1.1% to 1.7% of diet by the isonitrogenous substitution of gelatin for casein resulted in a significant enhancement of growth. however, the addition of free arginine, cystine, tryptophan or methionine to casein had little effect on growth or food conversion. these dat ...1977874559
isolation and electron microscopy of a rhabdovirus from the acute form of infectious dropsy of carp (spring viraemia of carp). 1977878734
[regulation of the igm immune response. i. changes in the affinity of carp anti-dnp-antibodies during immunization depending on the antigen dose].the affinities of anti-dnp-antibodies (igm) of carp, immunized with different doses of dinitrophenylated human serum albumin in complete freund's adjuvant, were determined by a modified farr-technique using the hapten epsilon-dnp-l-lysine. very low affinity antibodies were formed in the early immune response (ko = 0.2 - 1.0-10(5) m-1). a progressive increase in igm antibody affinity occurred during the immune reaction. after immunization with low doses of antigen (0.01 and 0.1 mg) the affinity i ...1977878748
[regulation of the igm immune response. ii. effect of the valence and affinity of carp anti-dnp-antibodies on the binding constant to multivalent dnp-t4-bacteriophage conjugates]. 1977878749
[electron microscopic study of the peptidergic neurosecretory cells of the preoptic nucleus of carp].the preoptic neurosecretory cells (nsc) in sexually mature female cyprinus carpio l. have been studied with electron microscope in winter. separate weakly differentiated nsc and differentiated nsc of small and mean size are localized in the ventral part of nucleus preopticus. the big highly differentiated nsc are mostly localized in the dorsal part of nucleus preopticus. among these types of the cells are established the light and dark forms. the "picnomorphic" cells are found only in the dorsal ...1977883023
[effect of prolonged cold storage and subsequent heat treatment on the fractional composition of fish muscle proteins].the effect of prolonged preservation at -18 degrees c and subsequent culinary heat treatment of the fractional composition of sarcoplasmatic and myofibrillar proteins in the muscles of mirror carp, pike and sheat-fish were studied by the method of gel-filtration on sephadex g-100. cold storage of the dish at -18 degrees c for 9 months was found to produce market changes in the qualitative and quantitative composition of muscle proteins. after culinary heat treatment the finished products have lo ...2010883223
taste responses in the facial lobe of the carp, cyprinus carpio l.single unitary discharges in the facial lobe of carp, cyprinus carpio l., were studied electrophysiologically in response to chemical stimulation of the chemoreceptors of the facial skin. of 258 neurons recorded, 95% were facilitated by taste stimuli and 5% were inhibited. according to responsiveness to the 4 basic tasting substances, the taste neurons were classified into 5 types: type i which was activated by one stimulus (43% of total neurons), type ii by two (35%), type iii by three (12%), t ...1977884525
[allergic and serologic reactions in carp to philometroides lusiana]. 1977888335
deep freezing of carp cyprinus carpio l. sperm. 1977890530
electro-mechanical noise in atrial muscle fibres of the carp.steady membrane voltage fluctuations have been observed in atrial muscle fibres of the carp. these voltage fluctuations produce minute mechanical escillations, as revealed by an interference contrast microscope. the steady voltage fluctuations may be related to abnormal automaticity in the heart.1977891811
[brain organization of amia, lepisosteus and polypterus: comparative morphology and quantitative analysys].the quantitative study of the brain of amia, lepisosteus and polypterus leads to results which are compared to those previously got on the sturgeon and three species of tleosts (the rainbow trout, the carp and the ballan wrasse). the volumetric analysis has been applied at first to the whole brain (encephalization indices) and later to the main subdivision of the brain: telencephalon, diencepahlon... (relation indices and relative volumes). some result are discussed in regard to the various opin ...1977894016
the isolation and characterization of some vibrio parahaemolyticus strains isolated from salted herring and roe.390 food samples (frozen, kippered herring, salted roe, fresh carp and salted ham) were investigated for the presence of vibrio parahaemolyticus. 8 v. parahaemolyticus strains were isolated from herring (6.2%) and roe samples (1.3%). some biochemical characteristics are discussed. in food borne outbreaks, presence of v. parahaemolyticus must be investigated, especially when the epidemiologically incriminated food is fish or fish products.1977899374
the connections of the trigeminal and facial motor nuclei in the brain of the carp (cyprinus carpio l.) as revealed by anterograde and retrograde transport of horseradish peroxidase.the connections of the rostral and caudal parts of the trigeminal and facial motor nuclei in the carp were studied with the horseradish peroxidase technique. following ionophoretic peroxidase injections in these motor nuclei, retrogradely labeled cells were observed together with anterogradely labeled motor cell processes. several cellular areas in thalamus, cerebellum and medulla oblongata were shown to project to the v and vii motor nuclei. labeled cells were found in the inferior lobe and the ...1977903419
physiology of host parasite relationship: effects on serum alkaline phosphatase levels of fish hosts parasitized by trypanosomes.serum alkaline phosphatase levels of five species of fresh water fish hosts were altered by trypanosome parasites. the loss in enzymatic activity ranged from 3.91% to 69.91% in the five species of infected fishes as compared to normal level in the healthy hosts. the maximal reduction in the enzymatic activity caused by trypanosomes was observed in the herbivore carp fish cirrhina mrigala and the minimal loss in the fresh water shark wallago attu.1977906625
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