Krauss, 1848 accepted, alternate representation bulinus pyrgophysa crosse, 1879 accepted, alternate representation bullinus oken, 1815 an incorrect subsequent spelling of bulinus. Vol 10 no 50 2011 african journal of biotechnology. Estimates are made of survival rates for bulinus globosus an important snail intermediate host for schistosoma haematobium, of 5mm shell length during aestivation in mud substrates. Secondly, bulinus species are hermaphrodite and can reproduce both by crossfertilization andor selffertilization, and each of these modalities induces different genetic consequences.
Influence of desiccation on the survival of bulinus. Read cockroach allatostatinlike immunoreactivity in the central nervous system of the freshwater snails bulinus globosus planorbidae and stagnicola elodes lymnaeidae, general and comparative endocrinology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Pdf studies on the biology and population parameters of bulinus. Abstract this study was carried out to investigate and give an update record of the prevalence and intensity of schistosoma infections and also to identify the snail. This is essential especially in the allocation of limited resources. Bulinus globosus, a key intermediate host for schistosoma haematobium that causes urinary schistosomiasis, is a hermaphroditic freshwater planorbid snail species that inhabits patchy and. Resistance of bulinus physopsis globosus, bulinus ph. Data are taken from previous field and laboratory studies and from present experiments. Molecular characterization and distribution of schistosoma. Plant datasheet for cheilocostus globosus click on a thumbnail to load full sized image.
Restriction products were separated by polyacrylamide gel electrophoresis and visualized by ethidium bromide staining. Only the latter species serves as intermediate host for schistosoma haematobium in zimbabwe. Pdf background temperature is an important factor that influences the biology and ecology of intermediate host ih snails and the schistosome. Survival rates of bulinus globosus during aestivation. Using a hostparasite system involving bulinus globosus and schistosoma haematobium, we assessed the effect of temperature on snail.
Pdf allelic polymorphism of makoei sheep myostatin gene identified by polymerase chain reaction and single strand conformation polymorphism m farhadian, a hashemi, k mardani, r darvishzadeh, m. Methods using a hostparasite system involving bulinus globosus and schistosoma haematobium, we. Competition between bulinus tropicus and bulinus globosus was investigated under laboratory and quasifield conditions. International notes centers for disease control and. An inverse correlation was observed between the two snail populations. Bulinus truncatus was consistently absent from the previous surveys. Serial dilut ons of the chemical were used in 96 h exposure tests on the molluscs, followed by postexposure maintenance in the laboratory. Bulinus globosus snails in southern ghana 60km from accra as well as in streams and ponds. Given that these groups include potential hosts for s. This genus is medically important because several species of bulinus function as intermediate hosts for the schistosomiasis blood fluke. Bulinus globosus is an intermediate host of schistosoma. Modelling the spatial and seasonal distribution of. Several snail intermediate hosts were found in mali. Precisely, to gain a better and more comprehensive understanding of the effects of temperature on bulinus globosus schistosoma haematobium system ka linda and coworkers exposed juvenile.
Pdf 552 kb pdf download buy article permissions and reprints. Snail survey data collected in a small village in kenya from april 1984 to march 1991 were used to analyze the interaction between bulinus globosus intermediate host of schistosoma haematobium. This is a cause for concern given that this mollusc is currently transmitting the. Identification of snails within the bulinus africanus. These regions are potentially species source pools for the crater lakes. Molecular diversity of bulinus species in madziwa area, shamva. When the eggs are released into the freshwater bodies, they hatch into miracidia and penetrate a suitable snail intermediate host of the genus bulinus with species such as bulinus truncatus, b. Schistosomiasis is a snailborne disease endemic in subsaharan africa transmitted by freshwater snails.
Microsatellites in the freshwater snail bulinus globosus. The distribution of schistosomiasis coincides with that of the intermediate hosts as determined by climatic and environmental factors. Snail survey data collected in a small village in kenya from april 1984 to march 1991 were used to analyze the interaction between bulinus globosus intermediate host of schistosoma haematobium and cleopatra ferruginea unsusceptible snail. Effect of temperature on the bulinus globosus schistosoma. Given that increase in temperature may alter hostparasite relationships, the anticipated rise in temperature due to global warming might change transmission patterns of certain diseases. Allen press on behalf of the american society of parasitologists. Pdf effect of temperature on the bulinus globosus schistosoma. Read cockroach allatostatinlike immunoreactivity in the central nervous system of the freshwater snails bulinus globosus planorbidae and stagnicola elodes lymnaeidae, general and comparative. The aim of this paper was to model the spatial and seasonal distribution of suitable habitats for bulinus globosus and biomphalaria pfeifferi snail species. Young bulinus physopsis globosus performed male copulatory activity and crossfertilized other snails before their female reproductive tracts were mature. Influence of desiccation on the survival of bulinus globosus under laboratory conditions. The ribosomal internal transcribed spacer its regions of both bulinus globosus and b.
Sep 01, 2016 this page was last edited on 3 june 2018, at. Aquatic snails of the bulinus africanus group in zambia identified. Lewis 1891 an elementary latin dictionary, new york. Pdf allelic polymorphism of makoei sheep myostatin gene identified by polymerase chain reaction and single strand conformation polymorphism m farhadian, a hashemi, k mardani, r darvishzadeh, m ranjbari. Krauss, 1848 accepted, alternate representation bulinus pyrgophysa crosse, 1879 accepted, alternate representation bullinus oken, 1815 an incorrect subsequent spelling of. Although schistosomiasis is generally considered a rural phenomenon, infections have. Bulinus globosus snails maintained at average temperatures of 15. Simulation of population dynamics of bulinus globosus. Results overall, 1923 bulinus truncatus, 255 bulinus globosus and 1424 bulinus forskalii were obtained. All structured data from the file and property namespaces is available under the creative commons cc0 license. Time p jan 10, 2020 bulinus species are freshwater snails that transmit the parasitic trematode schistosoma haematobium. Bulinus is a genus of small tropical freshwater snails, aquatic gastropod mollusks in the family planorbidae, the ramshorn snails and their allies.
However, the extent to which this will happen is not well understood. Populations of bulinus globosus and biomphalaria pfeifferi were studied in a river habitat in zimbabwe over a period of 12 months. The authors examined the hostparasite relationship of bulinus globosus and b. Peace corps volunteers malawi, 1992 schistosomiasis continuedschistosomiasis i. It is shown that although a low water velocity does not sweep away adhering snails, it carries away snails releasing their hold and crawling along the water surface in search of new food sources. The kenyan shell material is compared to a selection of b. Location of bulinus physopsis globosus by miracidia of schistosoma haematobium. All structured data from the file and property namespaces is. Methods for the analysis of comparative data in evolutionary biology. Media in category bulinus globosus the following 2 files are in this category, out of 2 total. Population genetic structure of the schistosomevector snail bulinus. Read alteration in the status of glutathione transferase of the water snail, bulinus globosus, during aestivation and recovery, animal biology on deepdyve, the largest online rental.
Bulinus globosus is a species of a tropical freshwater snail with a sinistral shell, an aquatic gastropod mollusk in the family planorbidae, the ramshorn snails and their allies. Similarly, the african snail bulinus globosus suffers a 50% reduction in fecundity and an 18% reduction in hatching rate, under. Bulinus globosus, one of the intermediate hosts of the genus schistosoma, is an hermaphrodite freshwater snail species. Pdf microsatellites in the freshwater snail bulinus. Time p biomphalaria pfeifferi and lymnaea natalensis to experimental desiccation. The bulinus africanus species group planorbidae of freshwater snails has been reported to be represented in zambia by. Spatial and temporal heterogeneity in the population. The molluscicidal effects of hyptis suaveolens on different stages of bulinus globosus in the laboratory ot salawu, ab odaibo 1024110247. Bulinus globosus, a key intermediate host for schistosoma haematobium that causes urinary schistosomiasis, is a hermaphroditic freshwater planorbid snail species that inhabits patchy and transient water bodies prone to large seasonal variations in water availability.
Angola, schistosomiasis transmission, bulinus globosus, biomphalaria spp. Phylogeny of seven bulinus species originating from. The distribution of schistosomiasis coincides with that of the intermediate hosts as. Microsatellites were tested using 32 snails from four populations collected from pemba and unguja islands of zanzibar. The influence of water velocities of less than 30 cms on drifting of bulinus globosus in a natural stream was investigated. Precisely, to gain a better and more comprehensive understanding of the effects of temperature on bulinus globosus schistosoma haematobium system ka linda and coworkers exposed juvenile snails. Similarly, the african snail bulinus globosus suffers a 50% reduction in fecundity and an 18% reduction in hatching rate, under obligate selffertilization, indicating a significant genetic load of recessive lethal genes 163.
The effects of permethrin on reproduction and survival of bulinus globosus and bulinus truncatus are reported. Author summary the implementation of schistosomiasis controlelimination strategies depend on accurate estimations and predictions of the changes in the snail and parasite population. Pdf background given that increase in temperature may alter hostparasite relationships, the. Despite their importance, the diversity of these intermediate host snails and their evolutionary history is still unclear in zimbabwe. Growth, egg laying and survival were followed for various densities of the two species in either singlespecies or mixedspecies aquaria, i. Location of bulinus physopsis globosus by miracidia of schistosoma. Selffertilization versus crossfertilization in the hermaphroditic freshwater snail bulinus. Infected bulinus globosus snails an intermediate host of s. On pemba island, both bulinus globosus and bulinus nasutus are important intermediate hosts of s. This study was conducted in the gastropod mollusks biomphalaria pfeifferi and bulinus globosus in schistosomiasis endemic area in the region of man, western cote divoire. Spatial and temporal heterogeneity in the population dynamics of bulinus globosus and biomphalaria pfeifferi and in the epidemiology of their infection with schistosomes volume 98 issue 1 m. The two most immature snails showed preputial eversion when secretion was present only in the muciparous gland and at the carrefour region of the oviduct. Mapping freshwater snails in northwestern angola lstm online.
Bulinus globosus and bulinus truncatus in the laboratory. Six microsatellite loci were isolated and characterized in bulinus globosus, a freshwater snail with a wide distribution throughout sub. Microsatellites in the freshwater snail bulinus globosus gastropoda. Malacological survey and geographical distribution of.
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