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Lía I. Lunaschi - One of the best experts on this subject based on the ideXlab platform.
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Redescripción y reubicación sistemática del trematodo Topsiturvitrema verticalia (Trematoda: Digenea) en una familia nueva
Revista de biologia tropical, 2014Co-Authors: Lía I. LunaschiAbstract:The trematode species Topsiturvitrema verticalia Velez and Thatcher 1990 is redescribed based on two paratype samples and new material from the small intestine of the bat Myotis levis (Geoffroy), from Bahia Samborombon, Buenos Aires province, Argentina. This species is characterized by the presence of a “rhynchus”, that is, an anterior sucker-like attachment organ, by the position of the mouth on the ventral surface (surrounded by the ventral sucker), by two blind digestive structures, by the presence of two false saccular caeca located anteriorly and behind the anterior attachment organ, by the presence of the genital pore in the marginal anterior position of the body, and by the mid-dorsal position of the excretory pore. T. verticalia was originally described as a member of the family Lecithodendriidae (Luhe 1901), however, the presence of “rhynchus” and the position of the mouth opening in the ventral sucker constitute morphological features that preclude its inclusion in this family. On account of this, it is considered necessary to create a new family for the genus Topsiturvitrema Velez and Thatcher 1990, which is included in a new family, Topsiturvitrematidae fam. nov. Furthermore, the geographic range of the species is expanded from Colombia to Argentina and M. levis is added to the species' host list.
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New host records for Anenterotrematidae, Lecithodendriidae and Urotrematidae trematodes in bats from Argentina, with redescription of Anenterotrema liliputianum.
Revista Mexicana de Biodiversidad, 2010Co-Authors: Lía I. Lunaschi, Juliana NotarnicolaAbstract:Anenterotrema liliputianum (Travassos, 1928) (Anenterotrematidae) is redescribed based on the type specimens from Molossus molossus (Pallas) and Phyllostomus elongatus (Geoffroy) from Brazil, and also on new specimens collected from the Dwarf Dog-faced Bat, Molossops temminckii (Burmeister) (Molossidae) in Argentina. In addition, we report the finding of Gymnoacetabulum talaveraensis (Lunaschi, 2002), Ochoterenatrema labda Caballero, 1943 (Lecithodendriidae), and Urotrema scabridum Braum, 1900 (Urotrematidae) parasitizing Vespertilionidae and Molossidae bats from Buenos Aires and Misiones provinces, and measurements, prevalence, and mean intensity for these trematodes are provided. In addition, the host spectrum and distribution for A. liliputianum and O. labda is increased, and U. scabridum is recorded for the first time parasitizing bats in Argentina.
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New host records for Anenterotrematidae, Lecithodendriidae and Urotrematidae trematodes in bats from Argentina, with redescription of Anenterotrema liliputianum Nuevos registros de trematodos Anenterotrematidae, Lecitodendriidae y Urotrematidae en mu
Universidad Nacional Autónoma de México, 2010Co-Authors: Lía I. Lunaschi, Juliana NotarnicolaAbstract:Anenterotrema liliputianum (Travassos, 1928) (Anenterotrematidae) is redescribed based on the type specimens fromMolossus molossus (Pallas) and Phyllostomus elongatus (Geoffroy) from Brazil, and also on new specimens collected from the Dwarf Dog-faced Bat, Molossops temminckii (Burmeister) (Molossidae) in Argentina. In addition, we report the finding of Gymnoacetabulum talaveraensis (Lunaschi, 2002), Ochoterenatrema labda Caballero, 1943 (Lecithodendriidae), and Urotrema scabridum Braum, 1900 (Urotrematidae) parasitizing Vespertilionidae and Molossidae bats from Buenos Aires and Misiones provinces, and measurements, prevalence, and mean intensity for these trematodes are provided. In addition, the host spectrum and distribution for A. liliputianum and O. labda is increased, and U. scabridum is recorded for the first time parasitizing bats in Argentina.Se re-describe Anenterotrema liliputianum (Travassos, 1928) (Anenterotrematidae) a partir de ejemplares tipo depositados en el Instituto Oswaldo Cruz recolectados de Molossus molossus (Pallas) y Phyllostomus elongatus (Geoffroy) de Brasil y de ejemplares hallados parasitando al moloso pigmeo Molossops temminckii (Burmeister) (Molossidae) en Argentina. Se registra además, el hallazgo de Gymnoacetabulum talaveraensis (Lunaschi, 2002), Ochoterenatrema labda Caballero, 1943 (Lecithodendriidae) y Urotrema scabridum Braum, 1900 (Urotrematidae) parasitando a murciélagos Vespertilionidae y Molosidae de las provincias de Buenos Aires y Misiones. Se proporcionan las medidas, prevalencia e intensidad media para estos digéneos. Además, se amplía el registro de hospedadores y localidades para A. liliputianum y O. labda y se encuentra por primera vez U. scabridum como parásito de quirópteros en la Argentina
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Checklist of digenean parasites of wild mammals from Argentina
Zootaxa, 2007Co-Authors: Lía I. Lunaschi, Fabiana B. DragoAbstract:A summary of the literature on the digeneans of wild mammals in Argentina is presented. This is the first compilation of 51 parasitological papers published from 1909 to present. This review includes 26 native species and two introduced species (1 Artiodactyla, 6 Carnivora, 6 Cetacea, 3 Chiroptera, 2 Didelphimorphia, 1 Primate, 8 Rodentia and 1 Lagomorpha) and contains 42 species of adult digeneans belonging to 32 genera and 18 families, of which 9 species (21%) were recorded as new species. The present review provides data on hosts, geographical distribution, site of infection, life cycle, the location of material deposited in Helminthological Collections and references for the parasite species arranged by families. A host/parasite list is also provided. In addition, Gymnoacetabulum n g. is proposed to replaced the genus Suttonia Lunaschi, 2002 (Lecithodendriidae) from bats, which is preoccupied by Suttonia Smith, 1953 (Perciformes, Serranidae).
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Redescripción y reubicación sistemática del trematodo Topsiturvitrema verticalia (Trematoda: Digenea) en una familia nueva
Vicerractoría Investigación, 2006Co-Authors: Lía I. LunaschiAbstract:Se redescribe el trematodo Topsiturvitrema verticalia Vélez y Thatcher 1990 con base en dos paratipos y material nuevo del intestino delgado del murciélago Myotis levis (Geoffroy), de Bahía Samborombón, Buenos Aires, Argentina. Esta especie es caracterizada por la presencia de un "rhynchus" u órgano de fijación anterior parecido a una ventosa terminal, la boca abierta en la superficie ventral (rodeada por la ventosa ventral), dos ciegos cortos, dos falsas bolsas del cirro localizadas anteriormente y detrás del órgano de fijación anterior, un poro genital sobre el margen anterior del cuerpo y el poro excretorio en posición dorsal. T. verticalia fue descrito como un miembro de la familia Lecithodendriidae (Lühe 1901); sin embargo, la presencia de "rhynchus" y la posición de la boca abierta en la ventosa ventral constituyen características morfológicas que imposibilitan su inclusión en esta familia. El género Topsiturvitrema Vélez y Thatcher 1990 se incluye en una familia nueva, Topsiturvitrematidae fam. nov., se amplía el ámbito geográfico de Colombia a Argentina y se agrega M. levis a la lista de hospederos de la especie.Redescription and systematic reclassification of the trematode Topsiturvitrema verticalia (Trematoda: Digenea) in a new family. The trematode species Topsiturvitrema verticalia Vélez and Thatcher 1990 is redescribed based on two paratype samples and new material from the small intestine of the bat Myotis levis (Geoffroy), from Bahía Samborombón, Buenos Aires province, Argentina. This species is characterized by the presence of a "rhynchus", that is, an anterior sucker-like attachment organ, by the position of the mouth on the ventral surface (surrounded by the ventral sucker), by two blind digestive structures, by the presence of two false saccular caeca located anteriorly and behind the anterior attachment organ, by the presence of the genital pore in the marginal anterior position of the body, and by the mid-dorsal position of the excretory pore. T. verticalia was originally described as a member of the family Lecithodendriidae (Lühe 1901), however, the presence of "rhynchus" and the position of the mouth opening in the ventral sucker constitute morphological features that preclude its inclusion in this family. On account of this, it is considered necessary to create a new family for the genus Topsiturvitrema Vélez and Thatcher 1990, which is included in a new family, Topsiturvitrematidae fam. nov. Furthermore, the geographic range of the species is expanded from Colombia to Argentina and M. levis is added to the species’ host list. Rev. Biol. Trop. 54 (3): 1041-1045. Epub 2006 Sept. 29
Trevor N Petney - One of the best experts on this subject based on the ideXlab platform.
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Copyright © 2015 by The American Society of Tropical Medicine and Hygiene Seasonal Transmission of Opisthorchis viverrini sensu lato and a Lecithodendriid Trematode Species in Bithynia siamensis goniomphalos Snails in Northeast Thailand
2016Co-Authors: Jutamas Namsanor, Paiboon Sithithaworn, Kulthida Kopolrat, Nadda Kiatsopit, Opal Pitaksakulrat, Smarn Tesana, Ross H Andrews, Trevor N PetneyAbstract:Abstract. Seasonal changes play roles in the transmission success of fish-borne zoonotic trematodes (FZT). This study examined the seasonal transmission patterns of Opisthorchis viverrini sensu lato (s.l.) and a virgulate cercaria (family Lecithodendriidae) in the snail intermediate host, Bithynia siamensis goniomphalos in northeast Thailand. Snail samples were collected monthly during the rainy, cool, and hot seasons during 2012–2013 to determine the prevalence and intensity of larval trematode infections. The prevalence of O. viverrini s.l. varied significantly with season, being 0.31%, 1.05%, and 0.37 % in the rainy, cool, and hot seasons, respectively (P < 0.05). Similarly, the prevalence of virgulate cercariae was 3.11%, 6.80%, and 1.64 % in the rainy, cool, and hot seasons, respectively (P < 0.05). The intensity of larval trematode infections also varied between seasons and peaked in the hot season (P < 0.05) in both species. The snails infected with O. viverrini s.l. were significantly smaller (P < 0.05) and those infected with virgulate cercariae were significantly larger (P < 0.05) than uninfected snails. Seasonal variation and the different sizes of B. s. goniomphalos parasitized by O. viverrini s.l. and virgulate trematodes indicate complex host–parasite interactions with important implications for the epidemiology of O. viverrini s.l
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seasonal transmission of opisthorchis viverrini sensu lato and a lecithodendriid trematode species in bithynia siamensis goniomphalos snails in northeast thailand
American Journal of Tropical Medicine and Hygiene, 2015Co-Authors: Jutamas Namsanor, Paiboon Sithithaworn, Kulthida Kopolrat, Nadda Kiatsopit, Opal Pitaksakulrat, Smarn Tesana, Ross H Andrews, Trevor N PetneyAbstract:Abstract. Seasonal changes play roles in the transmission success of fish-borne zoonotic trematodes (FZT). This study examined the seasonal transmission patterns of Opisthorchis viverrini sensu lato (s.l.) and a virgulate cercaria (family Lecithodendriidae) in the snail intermediate host, Bithynia siamensis goniomphalos in northeast Thailand. Snail samples were collected monthly during the rainy, cool, and hot seasons during 2012–2013 to determine the prevalence and intensity of larval trematode infections. The prevalence of O. viverrini s.l. varied significantly with season, being 0.31%, 1.05%, and 0.37% in the rainy, cool, and hot seasons, respectively (P < 0.05). Similarly, the prevalence of virgulate cercariae was 3.11%, 6.80%, and 1.64% in the rainy, cool, and hot seasons, respectively (P < 0.05). The intensity of larval trematode infections also varied between seasons and peaked in the hot season (P < 0.05) in both species. The snails infected with O. viverrini s.l. were significantly smaller (P < 0.05) and those infected with virgulate cercariae were significantly larger (P < 0.05) than uninfected snails. Seasonal variation and the different sizes of B. s. goniomphalos parasitized by O. viverrini s.l. and virgulate trematodes indicate complex host–parasite interactions with important implications for the epidemiology of O. viverrini s.l.
Jutamas Namsanor - One of the best experts on this subject based on the ideXlab platform.
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Copyright © 2015 by The American Society of Tropical Medicine and Hygiene Seasonal Transmission of Opisthorchis viverrini sensu lato and a Lecithodendriid Trematode Species in Bithynia siamensis goniomphalos Snails in Northeast Thailand
2016Co-Authors: Jutamas Namsanor, Paiboon Sithithaworn, Kulthida Kopolrat, Nadda Kiatsopit, Opal Pitaksakulrat, Smarn Tesana, Ross H Andrews, Trevor N PetneyAbstract:Abstract. Seasonal changes play roles in the transmission success of fish-borne zoonotic trematodes (FZT). This study examined the seasonal transmission patterns of Opisthorchis viverrini sensu lato (s.l.) and a virgulate cercaria (family Lecithodendriidae) in the snail intermediate host, Bithynia siamensis goniomphalos in northeast Thailand. Snail samples were collected monthly during the rainy, cool, and hot seasons during 2012–2013 to determine the prevalence and intensity of larval trematode infections. The prevalence of O. viverrini s.l. varied significantly with season, being 0.31%, 1.05%, and 0.37 % in the rainy, cool, and hot seasons, respectively (P < 0.05). Similarly, the prevalence of virgulate cercariae was 3.11%, 6.80%, and 1.64 % in the rainy, cool, and hot seasons, respectively (P < 0.05). The intensity of larval trematode infections also varied between seasons and peaked in the hot season (P < 0.05) in both species. The snails infected with O. viverrini s.l. were significantly smaller (P < 0.05) and those infected with virgulate cercariae were significantly larger (P < 0.05) than uninfected snails. Seasonal variation and the different sizes of B. s. goniomphalos parasitized by O. viverrini s.l. and virgulate trematodes indicate complex host–parasite interactions with important implications for the epidemiology of O. viverrini s.l
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seasonal transmission of opisthorchis viverrini sensu lato and a lecithodendriid trematode species in bithynia siamensis goniomphalos snails in northeast thailand
American Journal of Tropical Medicine and Hygiene, 2015Co-Authors: Jutamas Namsanor, Paiboon Sithithaworn, Kulthida Kopolrat, Nadda Kiatsopit, Opal Pitaksakulrat, Smarn Tesana, Ross H Andrews, Trevor N PetneyAbstract:Abstract. Seasonal changes play roles in the transmission success of fish-borne zoonotic trematodes (FZT). This study examined the seasonal transmission patterns of Opisthorchis viverrini sensu lato (s.l.) and a virgulate cercaria (family Lecithodendriidae) in the snail intermediate host, Bithynia siamensis goniomphalos in northeast Thailand. Snail samples were collected monthly during the rainy, cool, and hot seasons during 2012–2013 to determine the prevalence and intensity of larval trematode infections. The prevalence of O. viverrini s.l. varied significantly with season, being 0.31%, 1.05%, and 0.37% in the rainy, cool, and hot seasons, respectively (P < 0.05). Similarly, the prevalence of virgulate cercariae was 3.11%, 6.80%, and 1.64% in the rainy, cool, and hot seasons, respectively (P < 0.05). The intensity of larval trematode infections also varied between seasons and peaked in the hot season (P < 0.05) in both species. The snails infected with O. viverrini s.l. were significantly smaller (P < 0.05) and those infected with virgulate cercariae were significantly larger (P < 0.05) than uninfected snails. Seasonal variation and the different sizes of B. s. goniomphalos parasitized by O. viverrini s.l. and virgulate trematodes indicate complex host–parasite interactions with important implications for the epidemiology of O. viverrini s.l.
Paiboon Sithithaworn - One of the best experts on this subject based on the ideXlab platform.
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Copyright © 2015 by The American Society of Tropical Medicine and Hygiene Seasonal Transmission of Opisthorchis viverrini sensu lato and a Lecithodendriid Trematode Species in Bithynia siamensis goniomphalos Snails in Northeast Thailand
2016Co-Authors: Jutamas Namsanor, Paiboon Sithithaworn, Kulthida Kopolrat, Nadda Kiatsopit, Opal Pitaksakulrat, Smarn Tesana, Ross H Andrews, Trevor N PetneyAbstract:Abstract. Seasonal changes play roles in the transmission success of fish-borne zoonotic trematodes (FZT). This study examined the seasonal transmission patterns of Opisthorchis viverrini sensu lato (s.l.) and a virgulate cercaria (family Lecithodendriidae) in the snail intermediate host, Bithynia siamensis goniomphalos in northeast Thailand. Snail samples were collected monthly during the rainy, cool, and hot seasons during 2012–2013 to determine the prevalence and intensity of larval trematode infections. The prevalence of O. viverrini s.l. varied significantly with season, being 0.31%, 1.05%, and 0.37 % in the rainy, cool, and hot seasons, respectively (P < 0.05). Similarly, the prevalence of virgulate cercariae was 3.11%, 6.80%, and 1.64 % in the rainy, cool, and hot seasons, respectively (P < 0.05). The intensity of larval trematode infections also varied between seasons and peaked in the hot season (P < 0.05) in both species. The snails infected with O. viverrini s.l. were significantly smaller (P < 0.05) and those infected with virgulate cercariae were significantly larger (P < 0.05) than uninfected snails. Seasonal variation and the different sizes of B. s. goniomphalos parasitized by O. viverrini s.l. and virgulate trematodes indicate complex host–parasite interactions with important implications for the epidemiology of O. viverrini s.l
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seasonal transmission of opisthorchis viverrini sensu lato and a lecithodendriid trematode species in bithynia siamensis goniomphalos snails in northeast thailand
American Journal of Tropical Medicine and Hygiene, 2015Co-Authors: Jutamas Namsanor, Paiboon Sithithaworn, Kulthida Kopolrat, Nadda Kiatsopit, Opal Pitaksakulrat, Smarn Tesana, Ross H Andrews, Trevor N PetneyAbstract:Abstract. Seasonal changes play roles in the transmission success of fish-borne zoonotic trematodes (FZT). This study examined the seasonal transmission patterns of Opisthorchis viverrini sensu lato (s.l.) and a virgulate cercaria (family Lecithodendriidae) in the snail intermediate host, Bithynia siamensis goniomphalos in northeast Thailand. Snail samples were collected monthly during the rainy, cool, and hot seasons during 2012–2013 to determine the prevalence and intensity of larval trematode infections. The prevalence of O. viverrini s.l. varied significantly with season, being 0.31%, 1.05%, and 0.37% in the rainy, cool, and hot seasons, respectively (P < 0.05). Similarly, the prevalence of virgulate cercariae was 3.11%, 6.80%, and 1.64% in the rainy, cool, and hot seasons, respectively (P < 0.05). The intensity of larval trematode infections also varied between seasons and peaked in the hot season (P < 0.05) in both species. The snails infected with O. viverrini s.l. were significantly smaller (P < 0.05) and those infected with virgulate cercariae were significantly larger (P < 0.05) than uninfected snails. Seasonal variation and the different sizes of B. s. goniomphalos parasitized by O. viverrini s.l. and virgulate trematodes indicate complex host–parasite interactions with important implications for the epidemiology of O. viverrini s.l.
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Phaneropsolus spinicirrus n. sp.(Digenea: Lecithodendriidae), a human parasite in Thailand
The Journal of parasitology, 1991Co-Authors: Sasithorn Kaewkes, D. B. Elkins, Melissa Haswell-elkins, Paiboon SithithawornAbstract:Free to read Phaneropsolus spinicirrus n. sp., collected in a postpraziquantel treatment stool of a 44-yr-old woman from Kalasin Province in northeastern Thailand, is described. It is the second species of the genus Phaneropsolus Looss, 1899, found to parasitize a human host. It differs from the first species, Phaneropsolus bonnei Lie, 1951, in the presence of a short spinose cirrus and the structure and distribution of tegumental spines. The new species is most similar to Phaneropsolus perodictici Goodman and Panesar, 1986, isolated from the potto, Perodicticus potto, in Uganda because digeneans of both species have numerous spines on the cirrus. However, the new species differs from P. perodictici in having more conspicuous spines, the genital pore at the posterior border of the oral sucker or lateral to the pharynx, a body and internal organs of larger size, conical spines on the tegument, an ovoid to bilobed ovary and a large V-shaped excretory bladder. Phaneropsolus spinicirrus is distinguishable from other previously reported Phaneropsolus by possessing a spinose cirrus.
Elena A. Serbina - One of the best experts on this subject based on the ideXlab platform.
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the effect of trematode parthenites on the individual fecundity of bithynia troscheli prosobranchia bithyniidae
Acta Parasitologica, 2014Co-Authors: Elena A. SerbinaAbstract:We studied the long-term infection of the Bithynia troscheli (Paasch, 1842) snails with trematodes and estimated the influence of trematode parthenites on the individual fecundity of female snails from the Kargat River (Chany Lake, Russia). The prevalence of B. troscheli females infected by trematode parthenites varied from 7.12% to 17.35% in different years. Eleven redioid species from 5 families and 9 sporocystoid species from 5 families of trematodes were found during this investigation. Snails’ fecundity was analysed in relation to the type of infection (redioid or sporocystoid species). Fecund females of B. troscheli were uninfected or they had pre-patent infections from 5 families of trematodes (Psilostomidae, Notocotylidae, Prosthogonimidae, Lecithodendriidae, and Cyathocotylidae). 89.9% of infected B. troscheli females were infertile. Moreover, 13.57% and 1.29% egg capsules (of infected and uninfected females, respectively) were without embryos (χ2 = 323.24, p<0.001). The results of the two-way analysis of variability confirmed that trematode parthenites influenced significantly on the individual fecundity of B. troscheli. The age of B. troscheli females alone did not alter the individual fecundity, however age in combination with infection by tremathode parthenites influenced significantly the number of normal egg capsules. We also found that under unfavorable environmental conditions the proportion of fertile females increased by 23.7% among uninfected and by 219% among infected females.
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the effect of trematode parthenites on the individual fecundity of bithynia troscheli prosobranchia bithyniidae
Acta Parasitologica, 2014Co-Authors: Elena A. SerbinaAbstract:We studied the long-term infection of the Bithynia troscheli (Paasch, 1842) snails with trematodes and estimated the influence of trematode parthenites on the individual fecundity of female snails from the Kargat River (Chany Lake, Russia). The prevalence of B. troscheli females infected by trematode parthenites varied from 7.12% to 17.35% in different years. Eleven redioid species from 5 families and 9 sporocystoid species from 5 families of trematodes were found during this investigation. Snails’ fecundity was analysed in relation to the type of infection (redioid or sporocystoid species). Fecund females of B. troscheli were uninfected or they had pre-patent infections from 5 families of trematodes (Psilostomidae, Notocotylidae, Prosthogonimidae, Lecithodendriidae, and Cyathocotylidae). 89.9% of infected B. troscheli females were infertile. Moreover, 13.57% and 1.29% egg capsules (of infected and uninfected females, respectively) were without embryos (χ2 = 323.24, p<0.001). The results of the two-way analysis of variability confirmed that trematode parthenites influenced significantly on the individual fecundity of B. troscheli. The age of B. troscheli females alone did not alter the individual fecundity, however age in combination with infection by tremathode parthenites influenced significantly the number of normal egg capsules. We also found that under unfavorable environmental conditions the proportion of fertile females increased by 23.7% among uninfected and by 219% among infected females.
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The effect of trematode parthenites on the individual fecundity of Bithynia troscheli (Prosobranchia: Bithyniidae).
Acta Parasitologica, 2014Co-Authors: Elena A. SerbinaAbstract:We studied the long-term infection of the Bithynia troscheli (Paasch, 1842) snails with trematodes and estimated the influence of trematode parthenites on the individual fecundity of female snails from the Kargat River (Chany Lake, Russia). The prevalence of B. troscheli females infected by trematode parthenites varied from 7.12% to 17.35% in different years. Eleven redioid species from 5 families and 9 sporocystoid species from 5 families of trematodes were found during this investigation. Snails’ fecundity was analysed in relation to the type of infection (redioid or sporocystoid species). Fecund females of B. troscheli were uninfected or they had pre-patent infections from 5 families of trematodes (Psilostomidae, Notocotylidae, Prosthogonimidae, Lecithodendriidae, and Cyathocotylidae). 89.9% of infected B. troscheli females were infertile. Moreover, 13.57% and 1.29% egg capsules (of infected and uninfected females, respectively) were without embryos (χ2 = 323.24, p