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culture form and tsetse fly midgut form procyclic trypanosoma brucei express common proteins.proteins expressed by culture form and tsetse fly midgut form procyclic trypanosomes were examined by polyacrylamide gel electrophoretic techniques. analysis of the proteins of the two forms of procyclic organisms was performed by comparison of autoradiographs of high resolution two-dimensional polyacrylamide gels prepared using [35s]methionine-labelled parasites. only eight spots were found to differ between autoradiographs of culture form and tsetse fly midgut form parasites. seven of these di ...19873696176
comparative study on the infection rates of different glossina species for east and west african trypanosoma vivax stocks.teneral male glossina morsitans centralis, g. austeni, g. palpalis palpalis, g. p. gambiensis, g. fuscipes fuscipes, g. tachinoides and g. brevipalpis were fed on the flanks of boran calves infected with trypanosoma vivax stock ilrad 2241 isolated from a cow in likoni, kenya; stock ilrad 2337 isolated from a cow in galana, kenya; stock ilrad 1392 isolated from a cow in nigeria; or, stock eatro 1721 isolated from g. m. submorsitans in nigeria. the tsetse were fed on the infected hosts for 24 days ...19873696778
a second incident of reproductive abnormalities in colonized glossina morsitans morsitans westw. caused by a maternally acting toxicant in rabbit food. 19734784097
tracer experiments on t. brucei-infected salivary glands of glossina morsitans. 19734784099
influence of ph and ionic composition of the diet on feeding and water excretion by the tsetse fly glossina morsitans. 19734784104
glycogen in the viscera of the tsetse fly. 19734784106
recent results on gamma radiation sterilization of glossina morsitans westw. 19734784112
comparative cytogenetics of the glossina morsitans group. 19734784113
chromosome ultrastructure at meiosis in glossina austeni and glossina morsitans morsitans. 19734784115
an outline of sterility experiments conducted on sub-species of glossina morsitans. 19734784116
cytogenetics of the tsetse fly. 19734798216
letter: the production of "symbiont-free" glossina morsitans and an associated loss of female fertility. 19734798390
amino acids in the excreta of the tsetse fly, glossina palpalis. 19744824587
water movement during diuresis in the tsetse fly (glossina austeni). 19744833677
species identification of blood-meals from tsetse flies (glossinidae): results 1979-1985.results from species identification of almost 6,000 tsetse fly blood-meals are reported. regarding glossina palpalis and g. pallidipes, it was shown that the preference of tsetse flies for certain host species differed according to the sampling area. consequently, results from blood-meal identification are to be interpreted with this point in view.19863704476
susceptibility and immune responses of zebu and taurine cattle of west africa to infection with trypanosoma congolense transmitted by glossina morsitans centralis.following tsetse-transmitted infection with trypanosoma congolense, major differences in development of localised skin reactions, the ability to control parasitaemia, the degree of anaemia and in antibody response to trypanosomes were found between the reputedly trypanotolerant breeds of cattle (n'dama, n'dama/baoule crosses, baoule) and the trypanosusceptible west african zebu. the local skin reactions that developed in the zebu were large and severe while those that occurred in the other breed ...19863716196
[contribution to the study of reproduction of the evolution cycle of glossina morsitans west]. 19664874539
[breeding in france, of glossina morsitans morsitans west. and gl. tachinoides west]. 19654955621
extrachromosomal inheritance of susceptibility to trypanosome infection in tsetse flies. ii. susceptibility of selected lines of glossina morsitans morsitans to different stocks and species of trypanosome.two lines of glossina m. morsitans, selected for susceptibility and refractoriness to infection with a single stock of trypanosoma congolense, have now been shown to be susceptible or refractory to different stocks of t. congolense and, also, to different stocks of t. b. brucei and t. b. gambiense. the mean midgut infection rates of the susceptible line obtained in different experiments with t. congolense, t. b. brucei and t. b. gambiense were, respectively, 66%, 56% and 55%; the corresponding m ...19863729601
trypanosoma congolense: host responses following tsetse transmitted infection of kilifi isolates in goats.east african x galla goats, when infected with trypanosoma congolense isolates from the kilifi area of kenya by glossina morsitans centralis, did not develop the characteristic chancre reaction at the bite sites, whereas bites of tsetse infected with the cloned t. congolense il.1180 from serengeti, tanzania, resulted in chancres in the same goats. histological changes could not be observed in skin biopsies collected 8 or 9 days after infection with kilifi isolates. however, all goats became para ...19873582569
spontaneous, circadian components of tsetse fly activity. 19725045295
the meiotic sequence in glossina morsitans morsitans. 19725048064
infectivity of trypanosoma rhodesiense cultivated at 28 degrees c with various tsetse fly tissues.metacyclic trypanosomes developed in populations of procyclic forms of four stocks of trypanosoma brucei rhodesiense cultivated at 28 degrees c in a liquid medium containing explants of tsetse fly head-salivary glands, alimentary tract, abdominal body wall, or thoracic muscle. the cultures became infective for mice 7-16 days after they were prepared, and infective trypanosomes were present for prolonged periods. in the culture series of stock trum 545, infectivity persisted for 138 days when the ...19863735153
the occurrence of intracellular rickettsia-like organisms in the tsetse flies, glossina morsitans, g. fuscipes, g. brevipalpis and g. pallidipes. 19744151039
amino acid analyses of haemolymph of glossina morsitans morsitans (westwood). 19744151040
autoradiographic study of oögenesis in glossina morsitans. 19725048816
sensory and neurosecretory innervation of the tsetse fly proventricular complex. 19725048817
the nervous system in tsetse fly feeding. 19725048818
aspects of the development of flight musculature in the tsetse fly. 19725048821
the optimum use of males in colonies of glossina morsitans morsitans west and g. austeni newst. 19725048822
further experiments on radiation sterilization of glossina morsitans. 19725048823
bat's wing membrane for tsetse fly synthetic feeding. 19725048831
the meiotic sequence in glossina morsitans morsitans. 19725048833
cytogenetical analysis of a tsetse fly hybrid. 19725048835
volume relationships during the pregnancy cycle of the tsetse fly glossina austeni. 19725055121
development of trypanosoma brucei in the gut of glossina morsitans. 19725071084
apparent exhaustion of the variable antigen repertoires of trypanosoma vivax in infected cattle.three groups of cattle, each group comprising six animals, were inoculated intravenously with populations of bloodstream forms of trypanosoma vivax. the first group received t. vivax clone ildat 1.3 derived from an isolate from nigeria, while the other two received t. vivax stocks il 1875 or il 2133 isolated from coast province, kenya. one animal from the group that was infected with il 1875 died 8 weeks postinfection. the remaining 17 animals became aparasitemic in 8 to 12 weeks without interve ...19863770950
cultivation of a pleomorphic variant of trypanosoma (trypanozoon) evansi and its transmission by glossina morsitans. 19715097839
the regulation of ovulation in the tsetse-fly, glossina pallidipes austen. 19715130027
studies on the amino acids of the tsetse fly, glossina morsitans, maintained on in vitro and in vivo feeding systems. 19744153811
recent advances in techniques for tsetse-fly control.with the advent of modern persistent insecticides, it has become possible to utilize some of the knowledge that has accumulated on the ecology and bionomics of glossina and to devise more effective techniques for the control and eventual extermination of these species.the present article, based on experience of the tsetse fly problem in northern nigeria, points out that the disadvantages of control techniques-heavy expenditure of money and manpower and undue damage to the biosystem-can now large ...19675301739
control of the african trypanosomiases with special reference to land use.there is a need to reassess the role of the trypanosomiases, both human and animal, in african ecology and economy. withdrawal of control services from the congo basin was followed by a resurgence of infection from ancient foci, many of them thought to have been extinguished. successful elimination of glossina in savanna habitats has sometimes been followed by reinvasion causing massive epizootics. elsewhere continued recession of the tsetse fly has been followed by cattle population growth whic ...19695307600
aerial applications of insecticides for tsetse fly control in east africa.since 1948, research has progressed in east africa on the control of tsetse flies by aeria, applications of insecticides. initial experiments proved that residual spray treatments were ineffective while repeated applications of coarse aerosols gave promising fly mortalities.in recent years, with the development of more toxic insecticides used in conjunction with improved thermal exhaust equipment and modified rotary atomizers, sprays with fine aerosol characteristics have been produced at consid ...19695308701
productivity of glossina morsitans morsitans westwood maintained in the laboratory, with particular reference to the sterile-insect release method.glossina morsitans is of great economic importance in africa and if a mass-rearing project were to be undertaken with a view to control by the release of sterilized males it would be necessary to know the productivity that could be obtained from this species in the laboratory. data for life tables and age-specific fecundity schedules of g. m. morsitans fed on goats or lop-eared rabbits are used to calculate outputs of viable pupae or of young adult males that would be available for disposal.for ...19724537332
field cage evaluation of the competitiveness of male glossina morsitans orientalis vanderplank sterilised with tepa or gamma irradiation. 19695373801
effect of the developmental state of the host guinea-pig on the feeding activity of the tsetse fly glossina pallidipes aust. 19695375526
observation on some possible attractants of tsetse flies (glossina morsitans westw. and g. pallidipes aust.). 19695385047
cibarial stretch receptors in the tsetse fly (glossina austeni) and the blowfly (calliphora erythrocephala). 19705417534
the role of game animals in the maintenance of endemic and enzootic trypanosomiases in the lambwe valley, south nyanza district, kenya.rhodesian sleeping sickness and bovine trypanosomiasis were endemic in the lambwe valley of western kenya, where the vector of both diseases was a tsetse fly glossina pallidipes. since a large resident population of game animals also inhabited the valley, a programme was designed to assess the relationships between game animals, tsetse, and trypanosome populations and the results were collated with some aspects of local human ecology and the general epidemiological situation in the valley. of 13 ...19724544824
mouthpart sensilla of the tsetse fly and their function. i. feeding patterns. 19724656454
the flight activity and settling behaviour of glossina morsitans westw. (dipt., muscidae) in laboratory experiments. 19705450440
glycogen in the proventriculus of the tsetse fly. 19734705253
supercontracting and non-supercontracting visceral muscles in the tsetse fly, glossina austeni. 19705469740
function of resilin in tsetse fly seeding mechanism. 19705488115
immunological aspects of bovine trypanosomiasis. ii. antigenic variation in a strain of trypanosoma congolense transmitted by glossina morsitans. 19705495631
effects of carbon dioxide and nitrogen on glossina morsitans orientalis vanderplank. 19705500098
[experimental spraying from helicopters of the border forests along the niger river for tsetse fly control. influence of droplet size of multanin-fluid-3 on its period of effectiveness]. 19715572957
observations on the ecology of glossina morsitans submorsitans newst. in the guinea-sudan transition savanna of northern nigeria. 19675634136
control of glossina morsitans submorsitans newst. in northern nigeria by riverine spraying with motorized sprayers. 19675634137
the effect of host pregnancy on the reproductive capability of the tsetse fly, glossina morsitans, in captivity. 19685636861
gel electrophoresis of some dehydrogenases from flight muscles of tsetse flies (glossina morsitans) and houseflies (musca domestica). 19685651290
influence of age and feeding on the success of mating in a tsetse fly species. 19685673019
chromosomes of the tsetse fly, glossina palpalis r.-d. 19685688454
changes in the content of glycogen, sugars, nucleic acids, protein and free amino acids in the pupa of glossina morsitans during its development. 19734727857
artificial breeding of tsetse fly. i. factors connected with the feeding membrane and blood meals type. 19685734846
studies carried out with the glossina morsitans colony of lisbon. i. some aspects of the evolution of the glossina morsitans colony of lisbon. 19685734847
sex ratio distortion and semi-sterility in the progeny of irradiated glossina morsitans. 19734735819
some observations on a herd of cattle maintained under chemotherapeutic cover in an area of high tsetse fly challenge. 19734784094
the cyclical transmission of a west african strain of trypanosoma vivax to rabbits by glossina morsitans. 19734784095
ring-canals and intercellular communication within the egg-chamber of a tsetse fly species. 19685750793
digestive processes of haematophagous insects: control of trypsin secretion in glossina morsitans. 19744839332
studies carried out with the glossina morsitans colony of lisbon. ii. aspects of the tsetse flies appreciated by the "soft" x-rays. 19685753716
biological studies carried out with the glossina morsitans colony of lisbon. iv. utilization of the 32p and the 60co in the study of biology of the glossina morsitans. 19685753717
biological studies carried out with the glossina morsitans colony of lisbon. 3. hypothetical control of the tsetse fly in principe island by the sterile-male technique. 19685753774
separation of free amino acids and derivatives in the tsetse fly glossina palpalis (diptera) by ion-exchange chromatography. 19695766601
adenine nucleotides as feeding stimulants of the tsetse fly glossina austeni newst. 19695786502
age groups in feeding and following glossina morsitans males. 19695789075
glycerol kinase activities in muscles from vertebrates and invertebrates.1. glycerol kinase (ec 2.7.1.30) activity was measured in crude extracts of skeletal muscles by a radiochemical method. the properties of the enzyme from a number of different muscles are very similar to those of the enzyme from rat liver. glycerol kinase from locust flight muscle was inhibited competitively by l-3-glycerophosphate with a k(i) of 4.0x10(-4)m. 2. the activity of glycerol kinase was measured in a variety of muscles from vertebrates and invertebrates in an attempt to explain the la ...19695801671
survival and reproduction of glossina morsitans westw. in different types of cages exposed to variable and constant climatic conditions. 19695809262
behavioural studies of glossina morsitans westw. using tantalum-182. 19695817722
local skin reactions in cattle at the site of infection with trypanosoma congolense by glossina morsitans and g. tachinoides. 19695824283
dynamics of the pregnancy cycle in the tsetse glossina morsitans. 19744839338
nitrogenous waste products of the tsetse fly, glossina morsitans. 19655827549
a note on nocturnal resting sites of glossina morsitans westw. in the republic of zambia. 19655854757
antigenic variation in a strain of trypanosoma brucei transmitted by glossina morsitans and g. palpalis. 19655866129
utilization of injected glucose by the tsetse fly (glossina) and the stable fly (stomoxys). 19725009196
effect of the chemosterilant tepa on glossina morsitans westw. 19665915073
trypanosoma brucei rhodesiense: enhancement of infection rates in the tsetse fly, glossina morsitans, by feeding artificial bloodmeal mixtures.low mature salivary gland (sg) infection rates (6%) in less than 24-hour-old flies fed on blood containing bloodform trypanosomes can be significantly enhanced by feeding flies an artificial mixture containing procyclic forms in a red cell: culture medium mixture (procyclic mixture, sg rate = 21.0%). however, enhancement is not solely a function of the use of procyclic forms since blood forms fed to flies in the same red cell: culture medium mixture produce sg rates (15.4%) intermediate to those ...19853970311
neutralization of individual variable antigen types in metacyclic populations of trypanosoma brucei does not prevent their subsequent expression in mice.the trypanosoma brucei metacyclic population in the salivary glands of the tsetse fly displays a characteristic set of variable antigen types (vats) which represents only a restricted part of the parasite's total vat repertoire. after introduction into the mammalian host by fly bite, the metacyclics transform into bloodstream forms which retain expression of the metacyclic vats. specific antibodies, both polyvalent and monoclonal, have been used to neutralize separately 4 individual vats from me ...19853982856
differentiation in trypanosoma brucei: host-parasite cell junctions and their persistence during acquisition of the variable antigen coat.acquisition of the variable antigen-containing surface coat of trypanosoma brucei occurs at the metacyclic stage in the salivary glands of the tsetse fly vector. the differentiation of the metacyclic trypanosome in the gland has been studied by scanning electron microscopy and by transmission electron microscopy of thin sections and freeze-fracture replicas. the uncoated epimastigote trypanosomes (with a prenuclear kinetoplast) divide while attached to the salivary gland epithelium brush border ...19854030903
suppression of trypanosoma congolense, t. vivax and t. brucei infection rates in tsetse flies maintained on goats immunized with uncoated forms of trypanosomes grown in vitro.significant suppression in the incidence of cyclical development of trypanosoma congolense, t. vivax and t. brucei occurred in glossina morsitans centralis maintained on goats immunized with in vitro-propagated uncoated forms of t. congolense, t. vivax and t. brucei, respectively. this was observed when tsetse given a t. congolense-infected feed were subsequently maintained on uninfected immunized goats and also when uninfected tsetse were fed on immunized goats infected with t. congolense, t. v ...19854034247
observations on age-grouping the tsetse fly, glossina pallidipes, by wing-fray and ovarian dissection, on the south kenya coast.female glossina pallidipes from biconical trap collections at five localities on the south kenya coast were age-grouped by wing-fray and ovarian condition, and their trypanosome infection rates determined. from simultaneous application of the two age-grouping methods to 991 female tsetse, 17 reproductive age-categories were recognized. separation into these categories was supported by a highly significant correlation between estimated age and proportion of tsetse uninfected by trypanosomes. limi ...19854073997
survival and reproductive performance of female glossina morsitans morsitans when maintained on livestock infected with salivarian trypanosomes. 19854096568
comparative analysis of the polytene chromosomes of glossina austeni and glossina morsitans morsitans. 19744140779
a comparison of glossina morsitans submorsitans newst. and g. tachinoides west., collected and maintained under similar conditions, as vectors of trypanosoma (nannomonas) congolense, t. (n.) simiae and t. (duttonella) vivax. 19725021572
alternate day feeding of glossina morsitans. 19725048797
experiences with glossina morsitans from the langford colony during trypanosome infection experiments with tsetse flies in tororo, uganda. 19725048801
diurnal rhythm of larviposition by glossina morsitans orientalis vanderplank and g. austeni newst. 19725048804
the lack of infectivity to cattle of a strain of trypanosoma simiae transmitted by glossina morsitans and g. tachinoides. 19715096373
evolution of pupal weight of two lisbon colonies of glossina morsitans. 19715138874
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