| esterases in biomphalaria glabrata (mollusca: pulmonata), characterization, polymorphism, inheritance pattern and interspecific differences. | | 1976 | 1030202 |
| studies on resistance in snails. 6. escape of echinostoma lindoense sporocysts from encapsulation in the snail heart and subsequent loss of the host's ability to resist infection by the same parasite. | formation of amebocyte aggregates in the ventricular cavity of biomphalaria glabrata, induced by developing sporocysts of echinostoma lindoense, does not always result in destruction of the parasites, as the sporocysts occasionally escape encapsulation in the heart. when this occurs, a remarkable loss of protective capacity follows and the host snails become highly susceptible to reinfection with the same species--even more so than in control susceptible snails exposed for the first time. althou ... | 1976 | 1263043 |
| studies on resistance in snails. 5. tissue reactions to echinostoma lincloense in naturally resistant biomphalaria glabrata. | laboratory-raised juvenile albino biomphalaria glabrata snails show a wide range of natural resistance to a single infection with 50 or 100 miracidia of echinostoma lindoense. in the most resistant snails all sporocysts are destroyed in peripheral tissues soon after miracidial penetration. in less resistant snails some sporocysts reach the heart where they are encapsulated. in fully susceptible snails, all sporocysts rapidly migrate to the heart, where they mature and continue to develop. the gr ... | 1976 | 1263042 |
| studies on resistance in snails. 4. induction of ventricular capsules and changes in the amebocyte-producing organ during sensitization of biomphalaria glabrata snails. | formation of an amebocyte aggregate in the ventricular cavity of biomphalaria glabrata can be induced 30 hr or more after a single infection by irradiated or (less frequently) by normal echinostoma lindoense miracidia. the resulting amebocyte mass frequently encapsulated and destroyed the developing e. lindoense sporocysts within the ventricle. the constituent amebocytes of the capsule correspond in vitro and by staining characteristics to circulating amebocytes of uninfected snails, but with ad ... | 1976 | 1263041 |
| cryopreservation of biomphalaria glabrata (mollusca) cells. | | 1976 | 1254986 |
| [various aspects of the biology of biomphalaria glabrata (say, 1818) and biophalaria tenagophila (d'orbigny, 1835) (pulmonata, planorbidae). i. lenght of the embryo anal period]. | | 1976 | 935780 |
| alcohol dehydrogenase of biomphalaria glabrata (molusca: pulmonata): polymorphism, genetic analysis, and interspecific variations. | alcohol dehydrogenase of biomphalaria glabrata has been characterized by electrophoresis, substrate specificities, and other physiochemical means. it exists as a multiple molecular form possessing a minimum number of three bands in ovotestis, five in digestive gland, and six in albumen gland. each organ shows characteristic electrophoretic forms which differ in substrate specificities and the response to the organomercurial inhibitor p-hydroxymercuribenzoate. mercaptoethanol treatment has no eff ... | 1976 | 1259706 |
| studies on resistance in snails. 3. tissue reactions to echinostoma lindoense sporocysts in sensitized and resensitized biomphalaria glabrata. | the resistance of biomphalaria glabrata snails that have been sensitized by various levels of irradiated or nonirradiated echinostoma lindoense miracidia increased after a second challenge infection with nonirradiated miracidia of the same species. this was demonstrated by increased suppression of migrating capacity of invading sporocysts, an accelerated host tissue reaction, and a greater tendency of snail amebocytes to flatten while attacking the parasite. three methods of elimination of invad ... | 1976 | 1255383 |
| influence of diet on breeding and infectivity in mass cultivation of biomphalaria glabrata. | under well defined laboratory conditions as troughs, room temperature, humidity, water and air supply biomphalaria glabrata was bred and kept. in feeding trials powder of pellets for mice and commercial fish food were used as high protein diet in comparison to poor protein diet consisting of lettuce only. the high protein diet resulted in more clutches and eggs per snail than the lettuce diet. also the yield of cercariae in the rish protein group was much higher than in the group fed on on lettu ... | 1976 | 1029648 |
| glucose-6-phosphate dehydrogenase of biomphalaria glabrata (say , 1818) (mollusca: pulmonata). characterization and inheritance pattern. | glucose-6-phosphate dehydrogenase of biomphalaria glabrata has been characterized by electrophoresis, kinetic properties and inheritance pattern. it exists as a single electrophoretic band with no polymorphism in the natural population studied during the present investigations. there are no organ-specific differences in electrophoretic pattern. the enzyme from the homogenates of various organs e.g., albumen gland, digestive gland, ovotestis and columellar muscle show similar physico-chemical par ... | 1976 | 1026128 |
| purification and properties of a polyphenoloxidase from the fresh water snail biomphalaria glabrata. | | 1976 | 3352 |
| does copper cause anemia in biomphalaria glabrata? | | 1975 | 1206235 |
| strategic aspects of time allocation in the ecology of a freshwater pulmonate snail. | the paper describes experiments designed to investigate the influence of starvation on responses to various constant stimuli by biomphalaria glabrata (say). the results are discussed in the context of the economic priorities involved in "decisions" to switch from one conflicting behaviour to another. two pairs of conflicting behaviour patterns are discussed: to aggregate as opposed to feeding in isolation, and to move to the surface for pulmonary gaseous exchange as opposed to remaining submerse ... | 1975 | 28308979 |
| [biological behavior of biomphalaria glabrata with an anomalous shell]. | | 1975 | 1181655 |
| aspects of the crowding effect in biomphalaria glabrata (say, 1818) evaluated by 59-fe uptake. | | 2013 | 1135566 |
| effect on starvation on total protein and hemoglobin concentration in the hemolymph of biomphalaria glabrata. | | 1975 | 236863 |
| esterification of cholesterol by the hepatopancreas of the mollusc biomphalaria glabrata. | homogenates of the hepatopancreas of the mollusc biomphalaria glabrata, previously called australorbis glabratus say, 1818 (pressoa, 1969), were incubated with cholesterol-4-c14 (dispersed on celite) at 37 degrees c for 24 hr. the lipids were extracted, separated into classes by thin-layer chromatography and the radioactivity associated with the different classes determined. net esterfication of cholesterol was then obtained by calculating the percent of the total cholesterol radioactivity incor ... | 1975 | 1233884 |
| the cytochemical localization of succinic dehydrogenase in the sperm mitochondria of the gastropod biomphalaria glabrata. a comparison of two methods. | the mitochondrial derivative of the sperm of the gastropod pulmonate biomphalaria glabrata was studies to ascertain succinic dehydrogenase localization cytochemically. two techniques were compared. one technique depends on a tetrazolium salt that yields an osmiophilic formazan upon reduction. the other technique is dependent on the reduction of copper ferricyanide. the effects of several electron transport inhibitors were studied. the reaction product observed in the matrix of the mitochondrial ... | 1975 | 1167874 |
| the fine structure of encapsulation in biomphalaria glabrata. | | 1975 | 1072605 |
| heavy metal toxicity to biomphalaria glabrata (mollusca: pullmonata). | | 1975 | 1072604 |
| neoplasms and tumor-like growths in the aquatic pulmonate snail biomphalaria glabrata. | | 1975 | 1072602 |
| genetic studies of pathologic conditions and susceptibility to infection in biomphalaria glabrata. | during studies on the genetics of variation in susceptibility of b. galbrata to infection with s. mansoni, four types of proliferative amoebocytic accumulations have been observed. they occur in four different clonal stocks of b. glabrata, beginning as amoebocytic aggregations, namely, in the atrial cavity, pericardial cavity, periaortic space, and hemocoel between the stomach and intestine. persistent amoebocytic accumulations involve the sinuses around the stomach, intestine, and hepatopancrea ... | 1975 | 1072601 |
| in vitro cultivation of cells and a microsporidian parasite of biomphalaria glabrata (pulmonata: basommatophora). | cells from juvenile heart and gonads of b. glabrata have been grown in vitro for more than 1 year. these cell cultures are not actively mitotic but show other characteristics normal for metazoan cells in culture. they are tolerant of widely variable culture conditions. challenges with mitogens, mutagens, and altered cyclic nucleotide levels have failed to induce mitosis. a microsporidian parasite grows intracellularly in vitro. the ultrastructural details of sporogeny and pansporoblastic maturat ... | 1975 | 829474 |
| the chemical ecology of biomphalaria glabrata (say): the effects of media homotypically conditioned by adult snails on the growth of juveniles. | | 1974 | 4436638 |
| characterization of malate dehydrogenase: electrophoresis, isoelectric focusing, thermostability, inhibition and activity studies on homogenates of various organs of biomphalaria glabrata (mollusca: pulmonata). | | 1974 | 4430181 |
| the hemoglobin of biomphalaria glabrata: chemical composition and some physicochemical properties. | | 1974 | 4429711 |
| activities of selected hemolymph enzymes in biomphalaria glabrata (mollusca). | | 1974 | 4443611 |
| shell mats associated with microsporida in biomphalaria glabrata: genetic studies. | | 1974 | 4216608 |
| the chemoreceptor sites involved in food-finding by the freshwater pulmonate snail, biomphalaria glabrata (say), with particular reference to the function of the tentacles. | | 1974 | 4416120 |
| acid phosphatase activity in spermatids of the snail biomphalaria glabrata. | | 1974 | 4859198 |
| structure and function of the mantle cavity of biomphalaria glabrata (mollusca: pulmonata). | | 1974 | 4854431 |
| biomphalaria glabrata: procedures for obtaining large numbers of embryos for cell cultures. | | 1974 | 4850782 |
| biomphalaria glabrata: growth and differentiation of embryo fragments in extended culture. | | 1974 | 4850781 |
| antler tentacles of biomphalaria glabrata: genetic studies. | | 1974 | 4850613 |
| chromosomal studies during spermatogenesis and the radiation induced chromosomal aberrations in biomphalaria glabrata. | | 2009 | 4479688 |
| 5-hydroxytryptamine and dopamine in biomphalaria glabrata. | | 1974 | 4821112 |
| cytochemical observations on the midpiece of the spermatozoa of the gastropod biomphalaria glabrata. | | 1974 | 4364755 |
| lactate dehydrogenase of biomphalaria glabrata (say, 1818) (mollusca: pulmonata) i. physico-chemical characterization of lactate dehydrogenase of various tissues. | | 1974 | 4375551 |
| a transmission and scanning electron microscopical study of the rectal ridge of biomphalaria glabrata (mollusca: pulmonata. | | 1974 | 4442101 |
| social behavior in the freshwater pulmonate snail biomphalaria glabrata (say). | | 1973 | 4764254 |
| comparative study of the effects of two copper compounds on the respiration and survival of biomphalaria glabrata (mollusca: pulmonata). | | 1973 | 4207592 |
| [standardization of fe-59 uptake method, in biomphalaria glabrata, to study population density effect]. | | 2013 | 4791688 |
| [study of interspecific mating between the planorbid mollusks biomphalaria glabrata and b. tenagophila]. | | 1973 | 4789393 |
| maintenance of cells of biomphalaria glabrata (mollusca) in vitro. | | 1973 | 4784769 |
| bulbous head growths of biomphalaria glabrata: genetic studies. | | 1973 | 4784766 |
| the role of the osphradium in chemoreception by the snail biomphalaria glabrata (say). | | 1973 | 4748750 |
| the food-finding orientation mechanism of biomphalaria glabrata (say). | | 1973 | 4748749 |
| differences in esterase frequencies in five strains of biomphalaria glabrata (say). | | 1973 | 4687433 |
| occurrence of a dna body in the nervous cells of a fresh water snail (biomphalaria glabrata). | | 1972 | 4120192 |
| biomphalaria glabrata genetics: pearl formation. | | 1972 | 5044284 |
| uptake and assimilation of amino acids by biomphalaria glabrata (gastropoda: planorbidae). | | 1972 | 4404261 |
| predation of schistosomiasis vector snails by ostracoda (crustacea). | an ostracod species of cypretta is an effective predator in laboratory experiments on 1- to 3-day-old biomphalaria glabrata, a vector snail of the blood fluke that causes the tropical and subtropical disease schistosomiasis. | 1972 | 5061248 |
| histochemical distribution of acetylcholinesterase in the nervous system of the snail, biomphalaria glabrata. | | 1972 | 4573018 |
| the influence of day length upon the egg-laying of biomphalaria glabrata. | | 1971 | 5169290 |
| electrophoretic studies on the digestive gland esterases of some biomphalarid and lymnaeid snails. | because of the problems encountered in the classification of snails of medical importance, biochemical methods have been sought to help clarify the situation. of these, the separation of the enzymes of adult snails by electrophoresis seems the most promising but very few attempts have been made so far to use the results for taxonomic studies. the purpose of the present study was to evaluate the use of the enzyme systems of neotropical planorbid and of lymnaeid snails to elucidate their taxonomy ... | 1971 | 5317015 |
| haemoglobin changes in infected biomphalaria glabrata. | | 1971 | 5159150 |
| uptake of 59fe as a tool for study of the crowding effect in biomphalaria glabrata. | | 1970 | 5493049 |
| an investigation of some factors influencing the survival of st. lucian biomphalaria glabrata deprived of water. | | 1970 | 5500112 |
| observations on some factors affecting the growth rate and fecundity of biomphalaria glabrata (say). | | 1970 | 5500110 |
| culture of the snail biomphalaria glabrata on a simplified medium. | | 1970 | 5446322 |
| in vitro incorporation of precursors of rna into the digestive gland of normal and of schistosoma-infected biomphalaria glabrata. | | 1969 | 5778804 |
| the redial population of paryphostomum segregatum (trematoda: echinostomatidae) in the snail biomphalaria glabrata. | | 1969 | 5794766 |
| iron metabolism in the snail biomphalaria glabrata: uptake, storage and transfer. | | 1969 | 5777386 |
| [biological control: tilapia melanopleura dumeril versus biomphalaria glabrata (say), under laboratory conditions]. | | 2008 | 5393916 |
| antagonism between two species of echinostomes (paryphostomum segregatum and echinostoma lindoense) in the snail biomphalaria glabrata. | | 1968 | 5706746 |
| [migration of biomphalaria glabrata under the influence of pulsating direct electric current]. | | 2008 | 5701042 |
| field screening tests on molluscicides against biomphalaria glabrata in flowing water. | | 1968 | 5303414 |
| behavior of biomphalaria glabrata and of other snails in a thermal gradient. | | 1967 | 6078611 |
| influence of vitamin e on reproduction of biomphalaria glabrata under axenic conditions. | | 1967 | 6066226 |
| [influence of the container cover on the result of the biologic analysis of biomphalaria glabrata]. | | 2008 | 5595557 |
| mathematical simulation of an aquatic snail population. | techniques for controlling the intermediate snail hosts of schistosomiasis have had to be evaluated by field trials, since the complexity of snail population dynamics has so far made it impossible to predict the effects of these techniques and thereby avoid costly field testing.however, in laboratory studies with biomphalaria glabrata it was found that the fecundity of these snails was directly proportional to f/nv, where f is the total amount of food in the habitat, n the number of snails, and ... | 1967 | 5301741 |
| the susceptibility of biomphalaria glabrata throughout its life-history to n-tritylmorpholine. | this study was undertaken as part of a detailed investigation of the molluscicidal properties of n-tritylmorpholine (frescon, wl 8008). it is shown that the stage of development of biomphalaria glabrata has a pronounced influence on its susceptibility to n-tritylmorpholine. as the snails grow from hatching to a diameter of 3 mm, the lc(50) falls from 0.04 ppm to 0.02 ppm, but further growth results in a progressive increase in lc(50) until, at a shell diameter of 20 mm, it is 0.17 ppm. n-tritylm ... | 1967 | 5300047 |
| a simple method for collecting egg clutches of biomphalaria glabrata (australorbis glabratus) and for rearing newly hatched snails. | | 1965 | 5892123 |
| [number of eggs laid at each laying by planorbis glabratus, in guadeloupe during the dry season]. | | 2013 | 13662798 |
| [fecundity & nutrition of planorbis glabratus]. | | 2013 | 13511111 |