| changes in intracellular ph affect calcium currents in paramecium caudatum. | the relation between intracellular ph and membrane excitability was studied in the holotrich ciliate paramecium caudatum. intracellular ph (phi) was measured with recessed-tip ion-sensitive microelectrodes (thomas 1974) and electrical properties were examined by current stimulation and conventional two-electrode voltage clamp. under normal conditions the resting phi of paramecium was 6.80 +/- 0.05. intracellular alkalinization enhanced the early ca current, while internal acidification depressed ... | 1982 | 6129628 |
| nuclear transplant studies on the reduction in numbers of presumptive germ nuclei in exconjugants of paramecium caudatum. | nuclear differentiation in exconjugants of paramecium caudatum is closely associated with a brief localization of the postzygotic nuclei near the opposite ends of the cell, with the germinal nucleus (micronucleus) in the anterior region and the somatic nuclei (macronuclei) in the posterior region. the posterior nuclei cannot regenerate to produce micronuclei when all four anterior nuclei are removed. there is no difference among the anterior four presumptive micronuclei, because, when any three ... | 1982 | 7166576 |
| lysosomal enzymes of paramecium caudatum and paramecium tetraurelia. | | 1982 | 6282599 |
| transplantation of synkaryon in paramecium caudatum. analysis of its competence as germ nucleus. | | 1982 | 7056305 |
| [a preliminary report of the paramecium caudatum test for the differentiation of edible mushrooms from poisonous mushrooms (author's transl)]. | | 1982 | 7201376 |
| electrically induced ca2+ transport across the membrane of paramecium caudatum measured by means of flow-through technique. | transmembrane calcium fluxes related to excitation were studied in paramecium caudatum. radioactive (45ca2+) or inactive solution was flowed through a dense suspension of unlabelled or labelled cells, and radioactivity was monitored in the solution. the organisms were electrically stimulated by means of extracellular electrodes. as a result of stimulation ca2+ uptake and release was measured. the uptake response dropped with increasing number of successive stimulation periods and increased with ... | 1981 | 7317396 |
| analysis of germinal aging in paramecium caudatum by micronuclear transplantation. | | 1981 | 7308316 |
| axenic paramecium caudatum. ii. changes in fine structure with culture age. | the fine structure of axenically grown paramecium caudatum undergoes characteristic changes which reflect the cell's nutritional and metabolic conditions. cells in early log phase of growth contain large lipid accumulations and extensive foci of rough er bordered by golgi stacks, indicating an active metabolism. lipid bodies and er foci are reduced during mid log phase. by days 5 and 6 (late log phase) some rough er and a few lipid bodies are found in the cortex while the endoplasm is filled wit ... | 1981 | 7285952 |
| axenic paramecium caudatum. iii. biochemical and physiological changes with culture age. | as paramecium caudatum passes through the lag, log and stationary phases of the culture cycle, cellular protein content, polar (pl) and neutral (nl) lipid contents, marker enzyme activities, rate of digestive vacuole formation and cellular viability undergo characteristic changes. maximal protein content (60 ng/cell) and enzyme activities ranging from 7 nmoles for catalase to 0.2 pmoles/cell/min for alkaline phosphatase were observed between days 2 and 4. this active metabolism paralleled the fi ... | 1981 | 6269857 |
| digestive system membranes: freeze-fracture evidence for differentiation and flow in paramecium. | freeze-fractured membranes of digestive vacuoles of randomly feeding paramecium caudatum exhibit dramatic differences in intramembrane particle (imp) number and distribution on both e- and p-fracture faces. by pulse-feeding latex spheres to cells we have demonstrated that these differences are related to the age of the digestive vacuoles, and that the membranes of such vacuoles undergo a specific sequence of changes during the digestive cycle. young digestive vacuoles (dv-i; less than or equal t ... | 1981 | 7228903 |
| transplantation of germ nuclei in paramecium caudatum. iii. role of germinal micronucleus in vegetative growth. | | 1981 | 7202564 |
| transplantation of germ nuclei in paramecium caudatum. ii. induction of meiosis in transplanted interphase nucleus. | | 1981 | 7447989 |
| electron microscopy of cell surfaces of paramecium caudatum stained with ruthenium red. | the cell surface of paramecium caudatum, syngen 3, was examined by electron microscopy using ruthenium red (rr) staining. the rr-positive surface coat is of uniform thickness and is found on the entire surface of paramecia, including the gullet area. the surface coat is also observed on the membranes in the tightly united region of conjugating cells. measurements of the thickness of the surface coat in six stocks of p. caudatum demonstrate a significant difference between complementary mating ty ... | 1981 | 6164123 |
| differentiation of somatic and germinal nuclei correlated with intracellular localization in paramecium caudatum exconjugants. | | 1980 | 7439534 |
| calcium-mediated inactivation of calcium current in paramecium. | 1. the ca current seen in response to depolarization was investigated in paramecium caudatum under voltage clamp. inactivation of the current was measured with the double pulse method; a fixed test pulse of an amplitude sufficient to evoke maximal inward current was preceded by a conditioning pulse of variable amplitude (0-120 mv).2. the amplitude of the current recorded during the test pulse was related to the potential of the conditioning pulse. reduction of test pulse current was taken as an ... | 1980 | 6257894 |
| membrane potential fluctuation in paramecium. | the fluctuation of the membrane potential in paramecium caudatum cells was measured. the fluctuation was very large and composed of slow and periodic components and fast and random ones. the power of fast fluctuation depended on the environmental salt condition, particularly on the ratio of the potassium ion concentration to the square root of the calcium ion concentration, [k+]o/[ca2+]o(1/2), in the medium. the power greatly increased with the decrease of this ratio. the power density spectrum ... | 1980 | 16997241 |
| genetic control of lactate dehydrogenase isozymes in paramecium caudatum. | the ldh isozymes were surveyed in bacterized cultures of syngens 1, 3, 12, and 13 of paramecium caudatum by polyacrylamide gel electrophoresis. all the examined stocks of different syngens except one stock in syngen 3 had a single common ldh isozyme, and intra- and intersyngenic variation was not observed except for the one stock in syngen 3. breeding data using the exceptional stock indicated that the ldh isozymes of p. caudatum are controlled by two codominant alleles at a single locus whose p ... | 1980 | 7387623 |
| restoration of membrane excitability in a behavioral mutant of paramecium caudatum during conjugation and by microinjection of wild-type cytoplasm. | when cells of the behavioral mutant cnrc of paramecium caudatum were mated with the wild type, phenotype change from cnr (no backward swinning) to wild type in the cnrc mate occurred immediately after the formation of tight pairs. no change of phenotype occurred when cells of cnra or cnrb were mated with wild type. phenotypic change from cnr to wild type in cells of cnrc was also induced by microinjection of wild-type cytoplasm. microinjection of wild-type cytoplasm induced no change in cells of ... | 1980 | 7380886 |
| clonal death associated with the number of fissions in paramecium caudatum. | contrary to an earlier report suggesting clonal immortality in paramecium caudatum, the clones of the same species in this study terminated inevitably with a maximal life-span of 658 fissions and showed, prior to clonal death, decreased fission rate, increased probability of the appearance of non-dividing or dead cells after cell division, and increased frequency of morphological abnormality and of division asynchrony. clonal senescence and death after a limited number of fissions was reproducib ... | 1980 | 7364881 |
| directional change of ciliary beat effected with mg2+ in paramecium. | two types of triton x-100 extracted model of paramecium caudatum were prepared and effects of the ionic compositions of the reactivating medium on the swimming behaviour of the extracted models were examined. type i, prepared by the method of naitoh and keneko, did not change swimming direction depending on the concentrations of mg2+ and k+ in the reactivating medium. type ii, prepared by a different method, however, reversed the swimming direction depending on the concentrations of mg2+ and k+ ... | 1979 | 119789 |
| ciliary adenosinetriphosphatase from a slow swimming mutant of paramecium caudatum. | | 1979 | 159301 |
| hydrostatic pressure reversibly blocks membrane control of ciliary motility in paramecium. | a hydrostatic pressure of only 68 atmospheres prevented swimming paramecium caudatum from "avoiding" or reversing direction; 170 atmospheres stopped or decreased forward velocity by more than 75 percent. a decompression of 40 atmospheres invoked a single reversal, even at ,80 atmospheres. in contrast, 170 atmospheres did not significantly affect swimming behavior of paramecium "models" that were reactivated in a solution containing adenosine triphosphate and magnesium ions after their membrane h ... | 1979 | 482945 |
| axenic paramecium caudatum. i. mass culture and structure. | to establish and grow paramecium caudatum in mass axenic culture the culture medium of soldo, godoy & van wagtendonk was modified by substituting phosphatidylethanolamine (pe) for tem-4t and by a 10-fold increase in folic acid. population densities of 4000 to 6000 cells/ml and a generation time of 20-26 h are regularly obtained. optimal growth is obtained with pe-stigmasterol ratios between 40:1 to 400:1. cells from 1-day-old axenic cultures have many lipid bodies aggregated in clumps (which dis ... | 1979 | 536935 |
| internuclear control of dna synthesis in exconjugant cells of paramecium caudatum. | an exconjugant cell of paramecium caudatum has two kinds of macronuclei, fragmented prezygotic macronuclei and postzygotic new macronuclei (anlagen). although the dna synthesis in the fragmented prezygotic macronucleus continues until the third cell cycle after conjugation, selective suppression of the dna synthesis in the prezygotic macronucleus takes place at the fourth cell cycle. the inhibition of dna synthesis in prezygotic fragmented macronuclei is due to the presence of a postzygotic macr ... | 1979 | 487907 |
| stomatogenesis during sexual and asexual reproduction in an amicronucleate strain of paramecium caudatum. | amicronucleate cells of paramecium caudatum, whose micronuclei have been artifically removed by micropipetting, are characterized by the appearance of a deciliated area at the posterior part of the buccal opening. these cells form food vacuoles at a slightly lower rate than micronucleate cells. their mean interfission time is longer than that in micronucleates. the exconjugants of amicronucleate cells can not form food vacuoles and eventually die witout fission, though conjugation proceeds norma ... | 1979 | 469476 |
| specificity of the immaturity substances in paramecium. | cytoplasm of paramecium caudatum syngen 3 in the period of sexual immaturity was effective in inducing immaturity when injected into mating-reactive cells of other syngens of p. caudatum. when immature cytoplasm of p. caudatum was injected into mature cells of p. multimicronucleatum, immaturity was also induced in the latter cells. when cytoplasm of p. bursaria in the immaturity period was injected into mature cells of the same species, the latter became immature. but immature cytoplasm of p. ca ... | 1979 | 457810 |
| behavioral mutants in paramecium caudatum. | mutants of paramecium caudatum with abnormal swimming behavior or responses to cations were obtained by mutagenesis with n-methyl-n'-nitro-n-nitrosoguanidine. some of the mutants, like pawn in p. tetraurelia, cannot swim backward and are called cnr. seven independently obtained cnr mutants belonged to three complementation groups, designated as cnra, cnrb and cnrc. some characteristics of double homo- and heterozygotes were compared with single homo- and heterozygotes. other behavioral mutants s ... | 1979 | 17248890 |
| induction of autogamy by treatment with trypsin in paramecium caudatum. | firmly united conjugant pairs of p. caudatum were easily separated by treatment with trypsin, 0.025--1.0 mg/ml in 2 mm phosphate buffer at ph 7.2. cytological observations showed that pairs separated by this means undergo normal meiosis and subsequent prezygotic divisions. microspectrophotometric comparisons of g1 micronuclei in the parent with those in clones derived from prematurely separated conjugants indicate usually the same dna content in both. the stock dm -13, heterozygous for mating ty ... | 1979 | 422671 |
| calcium-activated adenosine triphosphatase activity of pellicles from paramecium caudatum. | pellicles were isolated from paramecium caudatum for a study of the properties of its insoluble atpase [ec 3.6.1.3] activity. pellicular atpase was solubilized by sonication and fractionated by sucrose density gradient centrifugation. the sedimentation coefficient of the atpase was about 9s. the atpase required ca2+ for maximum activation. addition of neutral salts to the assay medium inhibited the activity. substrate specificity for atp was low; other nucleoside triphosphates were hydrolyzed at ... | 1979 | 33975 |
| mutants of sexual maturity in paramecium caudatum selected by erythromycin resistance. | cells of paramecium caudatum, syngen 3 usually become sexually mature about 50 fissions after conjugation. in order to study the genetic mechanisms that control fission-department expression of maturity, an attempt was made to obtain early mature mutants by treatment with n-methyl-n'-nitro-n-nitrosoguanidine. a new cytoplasmic marker, erythromycin resistance, was used to eliminate nonconjugant and macronuclear regeneration clones. twenty early mature clones were obtained from five different muta ... | 1978 | 730047 |
| a study on the toxicity of natural food dyes--toxicity and enzyme inhibition in paramecium caudatum. | the toxicity of 14 commercial natural dyes which are widely used as food additives in japan was studied on paramecium caudatum. laccaic acid and capsanthin were found to be very toxic to paramecium caudatum. some of the commercially available carminic acid and crocin were also toxic. the inhibitory effect of natural food dyes on leucine aminopeptidase, acid phosphatase and esterase in vitro was proportional to the toxic effect of the dyes on the survival time of paramecium caudatum. analyses of ... | 1978 | 39176 |
| behavioural mutants of paramecium caudatum with defective membranes electrogenesis. | | 1978 | 625333 |
| transplantation of germ nucleus in paramecium caudatum, i. nuclei in the pre-meiotic s phase can enter into mitotic cycle. | | 1978 | 627249 |
| localization of calcium channels in paramecium caudatum. | 1. electrical recordings from paramecium caudatum were made after removal of the cilia with chloral hydrate and during ciliary regrowth to study the electrical properties of that portion of the surface membrane enclosing the ciliary axoneme. 2. removal of the somatic cilia (a 50% reduction in membrane surface area) results in an almost complete elimination of the regenerative ca response, all-or-none ba2+ spike, and delayed rectification. 3. a twofold increase in input resistance resulted from t ... | 1977 | 915829 |
| ciliary membranes and mating substances in paramecium caudatum. | cilia detached from mating reactive cells of paramecium caudatum were fractionated for the purpose of identifying the structural component bearing mating substances. purified axoneme fractions had no mating reactivity. the membrane fraction obtained by dialyzing against a solution of tris-edta (0.1 mm edta, 1 mm tris-hci, ph 7.6) and 0.6 m kci, and then by centrifuging over 40% (w/v) sucrose was strongly reactive. no mating reactivity was detected in the soluble fractions containing axonemal and ... | 1977 | 915845 |
| effects of food dyes on paramecium caudatum: toxicity and inhibitory effects on leucine aminopeptidase and acid phosphatase activity. | | 1977 | 14420 |
| cytopathological effects of detergents on paramecium caudatum. | | 1976 | 1020113 |
| electron microscopy and electron probe analysis of the ca-binding sites in the cilia of paramecium caudatum. | | 1976 | 971754 |
| mating-reactive membrane vesicles from cilia of paramecium caudatum. | membrane vesicles with a high mating reactivity were obtained from cilia of paramecium caudatum by treatment with a solution containing 2 m urea and 0.1 mm na2-edta. all processes of conjugation were induced in cells of the complementary mating type by approximately 10 mug/ml proteins of the vesicles. electron microscope observation showed that the membrane vesicles have a diameter of 100-150 nm. electrophoretic analysis on sds polyacrylamide gel revealed no significant difference in polypeptide ... | 1976 | 818093 |
| a modifier gene involved in the expression of the dominant mating type allele in paramecium caudatum. | | 1976 | 1278678 |
| food vacuole membrane growth with microtubule-associated membrane transport in paramecium. | evidence from a morphological study of the oral apparatus of paramecium caudatum using electron microscope techniques have shown the existence of an elaborate structural system which is apparently designed to recycle digestive-vacuole membrane. disk-shaped vesicles are filtered out of the cytoplasm by a group of microtubular ribbons. the vesicles, after being transported to the cytostome-cytopharynx region in association with these ribbons, accumulate next to the cytopharynx before they become f ... | 1974 | 4373478 |
| inhibition of ciliary movements by ni-2+ions in triton-extracted models of paramecium caudatum. | | 1974 | 4142702 |
| the cytoproct of paramecium caudatum: structure and function, microtubules, and fate of food vacuole membranes. | | 1974 | 4364579 |
| potassium: a factor necessary for the expression of mating reactivity in paramecium caudatum. | | 1974 | 4827159 |
| [characteristics of the reaction to extreme ph values of elongated cell-"spores" of symbiotic bacteria in paramecium caudatum macronucleus]. | | 1974 | 4848253 |
| [the possibility of increasing the specific growth rate of a culture of paramecium caudatum during disproportionate-flow cultivation]. | | 1974 | 4463472 |
| the relations between membrane potential and parameters of ciliary beat in free-swimming paramecium caudatum. | | 1973 | 4764411 |
| [significance of the toxic effect of the irradiated medium on the postradiation death of cells. 2. experiments on paramecium caudatum]. | | 2003 | 4763048 |
| control of ciliary activities by adenosinetriphosphate and divalent cations in triton-extracted models of paramecium caudatum. | | 1973 | 4732944 |
| [species infectious specificity of omega-particles, symbiotic bacteria of the micronucleus of paramecium caudatum infusoria]. | | 1973 | 4762276 |
| [electron microscope study of omega-particles--symbiotic bacteria of the micronucleus--and the nuclear apparatus of paramecium caudatum clone ml-48]. | | 1973 | 4687325 |
| [omega-particles, symbiotic bacteria of the micronucleus of paramecium caudatum clone m1-48 infusoria]. | | 1972 | 4654537 |
| the structure of trichocysts in paramecium caudatum. | | 1972 | 4648510 |
| [stability of radiation injury in a cell population (experiments on paramecium caudatum)]. | | 1972 | 5083482 |
| [complement consumption by paramecium caudatum culture and survival time of patients with malignant tumors]. | | 1972 | 5046002 |
| [effect of medium rate on the density, productivity and specific growth rate of a paramecium caudatum culture]. | | 1972 | 5022983 |
| [polymorphism of paramecium caudatum micronuclei. iv. comparative analysis of nuclear reorganization in the process of division of maturation in 4 morphological types]. | | 1971 | 5133749 |
| [polymorphism of the micronuclei of paramecium caudatum. 3. cytofluorometric study of dna content]. | | 1971 | 5117434 |
| fine structure of membranous and microfibrillar systems in the cortex of paramecium caudatum. | an electron microscope study of the cortex of paramecium caudatum has revealed new details pertinent to several unresolved problems. the lateral boundaries of the alveoli do not regularly follow the crests of the polygonal ridges and thus their staining with silver cannot account for the external lattice seen by light microscopists. a granulo-fibrillar material is present, however, within the peaks of the ridges, which would account for the external lattice if so stained. perforations are presen ... | 1971 | 4102004 |
| distribution of acid phosphatase in paramecium caudatum: its relations with the process of digestion. | | 1970 | 5420329 |
| [paramecium caudatum as indicator for the effect of surface active agents]. | | 1970 | 5269684 |
| [change in the heat resistance of paramecium caudatum dependent on the levels of several metallic ions in the medium]. | | 1970 | 5490109 |
| [effect of circadian temperature change on the multiplication of paramecium caudatum]. | | 1969 | 5356441 |
| [changes of the thermostability in fasting paramecium caudatum depending on the content of boron at different values of ph in the media]. | | 1969 | 5356440 |
| control of the orientation of cilia by adenosinetriphosphate, calcium, and zinc in glycerol-extracted paramecium caudatum. | the predominant orientation of cilia in glycerol-extracted paramecium is toward the posterior of the specimen in a kcl solution. the cilia became reoriented toward the anterior shortly after transfer of the extracted cell to a mixture of atp, calcium, and zinc. the degree of response was graded as a function of the concentration of each of the three essential factors. minimum concentrations for the maximum response were 0.2 mm in atp, 0.8 mm in calcium, and 0.0002 mm in zinc. the observations su ... | 1969 | 4976855 |
| [the dependence of some dehydrogenases activities in paramecium caudatum, adapted to lowered and raised temperatures, on the age of the mass culture]. | | 1968 | 4887842 |
| antibiotic principles of garcinia morella: part xi--mode of action of beta and alpha-2-guttiferins on spirostomum ambiguum and paramecium caudatum. | | 1968 | 5718528 |
| [the dependence of thermostability of paramecium caudatum on the presence of sucrose in the medium]. | | 1968 | 5709723 |
| fine structure changes during chloral hydrate deciliation of paramecium caudatum. | | 1968 | 5690612 |
| determination and inheritance of mating type in paramecium caudatum. | | 1968 | 5662626 |
| [polymorphism of micronuclei of paramecium caudatum i. morphological types of interphasic nuclei]. | | 1968 | 5707577 |
| [exconjugant clones of paramecium caudatum with multiple micronuclei]. | | 1968 | 5707576 |
| on the interrelations between ultraviolet and visible light during their simultaneous action on the cell. | beyond the earth's atmosphere, ultraviolet (uv) light that is a component of the sun's spectrum appears as one of the limiting factors to life in space and on the planets which have no ozone layer in their atmosphere. at early stages in the evolution of life, the earth's atmosphere contained neither free oxygen nor the layers serving as a screen for short-wave uv light. under such conditions, the uv radiation lasted for 8-10 hours a day. similar radiation conditions may be found on mars. still, ... | 1968 | 12206175 |
| ionic control of the reversal response of cilia in paramecium caudatum. a calcium hypothesis. | the duration of ciliary reversal of paramecium caudatum in response to changes in external ionic factors was determined with various ionic compositions of both equilibration and stimulation media. the reversal response was found to occur when calcium ions bound by an inferred cellular cation exchange system were liberated in exchange for externally applied cations other than calcium. factors which affect the duration of the response were (a) initial amount of calcium bound by the cation exchange ... | 1968 | 4966766 |
| [action of several inhibitors of metabolism on the resistance to nickel salts in paramecium caudatum]. | | 1967 | 4967521 |
| [effect of a magnetic field on unicellular infusoria (paramecium caudatum st.)]. | | 2003 | 5623718 |
| serotype inheritance and serotypic alleles in paramecium caudatum. | | 1967 | 5583737 |
| effect of certain cations on activity of leucine naphthylamidases of paramecium caudatum. | | 1967 | 4964170 |
| [observations on the ultrastructural changes of micronuclei during their transformations into macronuclei in paramecium caudatum]. | | 1967 | 4229126 |
| micronuclear rna synthesis in paramecium caudatum. | in a generation time of 8 hr in paramecium caudatum, the bulk of dna synthesis detected by thymidine-(3)h incorporation takes place in the latter part of the cell cycle. the micronuclear cycle includes a g(1) of 3 hr followed by an s period of 3-3(1/2) hr. g(2) and division occupies the remaining period of the cycle. macronuclear rna synthesis detected by 5'-uridine-(3)h incorporation is continuous throughout the cell cycle. micronuclear rna synthesis is restricted to the s period. ribonuclease ... | 1967 | 6039372 |
| binding of ca ions by paramecium caudatum. | binding of (45)ca by live paramecium caudatum was determined under various external ionic conditions. it was found that calcium uptake was separable into at least two components, a rapid and a slow one. the rapid component was influenced by the presence of certain other ions in a manner which agrees with the law of mass action. it appears that an ion exchange system may be involved in a binding equilibrium established between paramecium, ca(++), and certain other ions. k(+), rb(+), and ba(++) in ... | 1967 | 6033587 |
| electron microscopy study of regeneration of surace structures of paramecium caudatum. | | 1967 | 5583662 |
| reversal response elicited in nonbeating cilia of paramecium by membrane depolarizatin. | ciliary reversal occurs in response to electrical and chemical stimuli in specimens of paramecium caudatum in which ciliary beat has been completely inhibited by external application of nickel ions. the mechanism underlying ciliary reversal appears, therefore, to differ from that of ciliary beat. the cessation of ciliary beat has no effect on the intracellular potential of paramecium. however, depolarizing action potentials are associated with ciliary reversals in paramecia, treated with nickel, ... | 1966 | 5923781 |
| photosensitizing compounds in extracts of drinking water. | by means of a photodynamic bioassay, with paramecium caudatum, photosensitizing compounds have been demonstrated in extracts of finished drinking water in the united states. these findings are of interest in view of a demonstrated association between photodynamic toxicity and carcinogenicity. neither the origin nor the identity of these compounds has been determined. | 1966 | 5914757 |
| [the effect of x-rays on the sensitivity of paramecium caudatum to metabolic inhibitors]. | | 2003 | 5974627 |
| [phagocytosis of bacteria by paramecium caudatum, especially of pathogenic bacteria]. | | 1966 | 5949505 |
| serotypes and immobilization antigens in paramecium caudatum. | | 1966 | 4958003 |
| [on macronuclear regeneration in paramecium caudatum]. | | 2003 | 5977911 |
| the mechanism of the regeneration of surface structures of paramecium caudatum. | | 1966 | 5330521 |
| [relationship between the curve of anesthesia time and the conditions of anesthesia in lumbricus variegatus and paramecium caudatum]. | | 2015 | 5880637 |
| [relation of the thermostability of paramecium caudatum and the concentration of kcl and nacl in the culture medium and the concentration of equilibrated salt solutions]. | | 2015 | 5863661 |
| [apropos of the system in the reactivity of biological objects to radiations. (analysis of data obtained on paramecium caudatum)]. | | 1965 | 14267176 |
| [the reaction of paramecium caudatum to the lasting influence of low single and fractional doses of ultraviolet rays]. | | 1965 | 5871948 |
| [effect of temperature on the content of ribonucleic acid in paramecium caudatum after roentgen irradiation]. | | 2015 | 14326343 |
| sub-microscopic structure of injured surface of paramecium caudatum. | | 1964 | 14222280 |
| [relation of the thermostability of paramecium caudatum to the presence of ethyl ether and urea in the medium]. | | 2015 | 14277057 |
| observations on atypical mitochondria in paramecium caudatum. | | 1964 | 14179748 |
| [modified sensitivity of paramecium caudatum infusoria to glycolysis and respiration inhibitors and its relation to the age of cultures]. | | 1964 | 14236078 |
| importance of adsorbents in the nutrition of paramecium caudatum. | | 1964 | 14119550 |
| the flocculation of suspended matter by paramecium caudatum. | | 1963 | 14114923 |