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Ian Beveridge - One of the best experts on this subject based on the ideXlab platform.
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two new species of nematodes of the genus cloacina Strongyloidea cloacininae parasitic in the stomachs of red kangaroos osphranter rufus marsupialia macropodidae
Transactions of The Royal Society of South Australia, 2018Co-Authors: Ian BeveridgeAbstract:ABSTRACTTwo new species of Cloacina (Nematoda: Strongyloidea) are described from the stomach of the red kangaroo, Osphranter rufus. Cloacina xericola sp. nov. is described from a single locality, M...
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Description and molecular characterisation of Cloacina johnstoni sp. nov. (Nematoda: Strongyloidea) from the wallaroo, Macropus robustus (Marsupialia: Macropodidae) and relationships with the synhospitalic species C. macropodis
Parasitology Research, 2016Co-Authors: Mary Shuttleworth, Abdul Jabbar, Ian BeveridgeAbstract:Cloacina johnstoni sp. nov. (Nematoda: Strongyloidea) is described from the sacculated forestomach of the wallaroo, Macropus robustus (Marsupialia: Macropodidae) from Australia. It resembles the synhospitalic species Cloacina macropodis but differs from it principally in the shape of the cephalic papillae. The two species are also distinguishable based on differences in the first and second internal transcribed spacers (ITS) of nuclear ribosomal DNA (rDNA). Cloacina johnstoni commonly co-occurs in the same individual host as C. macropodis but has a more restricted geographical distribution.
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Systematic relationships of some members of the genera Oesophagostomum and Chabertia (Nematoda: Chabertiidae) based on ribosomal DNA sequence data.
International Journal for Parasitology, 1998Co-Authors: Lisa A. Newton, Ian Beveridge, Neil B. Chilton, Robin B. GasserAbstract:Abstract The present study characterised seven species of the Chabertiidae (Nematoda: Strongyloidea) belonging to either the subfamily Oesophagostominae ( Oesophagostomum radiatum, Oesophagostomum venulosum, Oesophagostomum dentatum, Oesophagostomum quadrispinulatum, Oesophagostomum columbianum, Oesophagostomum bifurcum ) or to the subfamily Chabertiinae ( Chabertia ovina ) by their second internal transcribed spacer rDNA sequence, assessed the extent of intraspecific variation and interspecific differences in the sequence, and inferred the phylogenetic relationship of C. ovina with respect to members of the Oesophagostominae. In both the phenetic and cladistic analyses of the sequence data, Chabertia was nested within Oesophagostomum , suggesting either that the species examined represent members of the same genus, or alternatively, that Oesophagostomum may represent more than one genus.
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sibling species within macropostrongyloides baylisi nematoda Strongyloidea from macropodid marsupials
International Journal for Parasitology, 1993Co-Authors: Ian Beveridge, N B Chilton, Ross H AndrewsAbstract:Abstract Macropostrongyloides baylisi from four different species or subspecies of host were analysed electrophoretically at 27 enzyme loci. The results revealed the existence of two species, one in Macropus giganteus and the other in M. robustus robustus, M.r. erubescens and M.r. parryi, that had fixed genetic differences at 33% of loci. Populations of nematodes from two subspecies of M. robustus, M.r. robustus from Queensland and M.r. erubescens from South Australia, had fixed genetic differences at two (7.4%) of 27 loci and were considered to belong to the same species. No fixed genetic differences were detected between nematodes from M. parryi and M.r. robustus. A discriminant function analysis of morphological data assigned 96% of specimens to groups defined on the basis of the host species or subspecies from which they were obtained. This separation of Ma. baylisi into host-specific groups did not, however, totally correlate with the electrophoretic data. The species of M. baylisi in M. giganteus was genetically more distinct from the sibling species in M. robustus/M. parryi than to a related but morphologically dissimilar nematode, Ma. yamagutii from M. fuliginosus. This suggests an evolutionary parallel between host and parasite at the genetic level which is not reflected by morphological differences.
Lynda M Gibbons - One of the best experts on this subject based on the ideXlab platform.
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an annotated checklist by genus and species of 93 species level names for 51 recognized species of small strongyles nematoda Strongyloidea cyathostominea of horses asses and zebras of the world
Veterinary Parasitology, 1998Co-Authors: J R Lichtenfels, V A Kharchenko, R C Krecek, Lynda M GibbonsAbstract:Abstract The results of an international collaborative effort to prepare a recommended list of scientific names for the small strongyles (Nematoda: Strongyloidea: Cyathostominea) of horses, donkeys and zebras are reported. Fifty-one valid species are recognized in 13 genera, including Cyathostomum , Coronocyclus , Cylicodontophorus , Cylicocyclus , Cylicostephanus , Skrjabinodentus , Tridentoinfundibulum , Petrovinema , Poteriostomum , Parapoteriostomum , Hsiungia , Cylindropharynx and Caballonema . In addition, 42 other species level names are listed as synonyms of the 51 recognized species or as species inquirendae (10 species) or nomen nudum (one species). Numerous annotations provide information on the nomenclatural and systematics history, current status and additional studies needed.
Pedro Cabral Goncalves - One of the best experts on this subject based on the ideXlab platform.
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viability of bovine s Strongyloidea eggs in a system of anaerobic biodigestion
Parasitología latinoamericana, 2004Co-Authors: Marcia Bohrer Mentz, Jose Maria Wiest, Pedro Cabral GoncalvesAbstract:El objectivo deste estudio fue evaluar la viabilidad de huevos de Strongyloidea de bovinos en un sistema cerrado de biodigestion anaerobia. Dos partes del biodigestor fueran completadas con estiercol liquido de ocho vacas Holstein Breed, naturalmente infectadas con los parasitos estudiados. Durante 10 semanas consecutivas de observacion, la temperatura interna del tanque vario de 24 o hasta 28o C y, externamente, de 26o hasta 33o C. El pH medido fue siempre7. Se examinaran las muestras del efluente semanal-mente, en un total de 10, las cuales fueran submetidas a tecnicas para deteccion de la existencia y viabilidad de huevos de helmintos. Se observo que los huevos de Strongyloidea tuvieran viabilidad por 35 dias. Se encontraran las larvas infectivas de los generos Haemonchus, Cooperia y Oesophagostomum hasta el 14o dia de observacion y las del Trichostrongylus y Ostertagia hasta el 35o dia. Los datos obtenidos muestran que el estiercol liquido bovino, infectado con huevos de Strongyloidea, deveran ser mantenidos en biodigestion anaerobia por 35 dias, por lo menos, antes de su retorno al medio ambiente
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Viability of Bovine`s Strongyloidea eggs in a System of Anaerobic Biodigestion
Parasitología latinoamericana, 2004Co-Authors: Marcia Bohrer Mentz, Jose Maria Wiest, Pedro Cabral GoncalvesAbstract:El objectivo deste estudio fue evaluar la viabilidad de huevos de Strongyloidea de bovinos en un sistema cerrado de biodigestion anaerobia. Dos partes del biodigestor fueran completadas con estiercol liquido de ocho vacas Holstein Breed, naturalmente infectadas con los parasitos estudiados. Durante 10 semanas consecutivas de observacion, la temperatura interna del tanque vario de 24 o hasta 28o C y, externamente, de 26o hasta 33o C. El pH medido fue siempre7. Se examinaran las muestras del efluente semanal-mente, en un total de 10, las cuales fueran submetidas a tecnicas para deteccion de la existencia y viabilidad de huevos de helmintos. Se observo que los huevos de Strongyloidea tuvieran viabilidad por 35 dias. Se encontraran las larvas infectivas de los generos Haemonchus, Cooperia y Oesophagostomum hasta el 14o dia de observacion y las del Trichostrongylus y Ostertagia hasta el 35o dia. Los datos obtenidos muestran que el estiercol liquido bovino, infectado con huevos de Strongyloidea, deveran ser mantenidos en biodigestion anaerobia por 35 dias, por lo menos, antes de su retorno al medio ambiente
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viability of bovine s Strongyloidea eggs in a system of
2004Co-Authors: Anaerobic Biodigestion, Marcia Bohrer Mentz, Jose Maria Wiest, Pedro Cabral GoncalvesAbstract:Cattle Strongyloidea egg-viability was studied in closed system of anaerobic biodigestion. Two thirds of a biodigestor were filled with liquified manure from eight Hosltein cows, nacturally infected. For 10 consecutive weeks of observation, the biodigestor internal temperature varied from 24oC to 28oC and external temperature, from 26oC to 33oC. All the effluent samples showed a constant pH of 7. The samples of the effluent were weekly collected, in a total of 10, and submitted to techniques to detect the presence and viability of the helminth eggs. It was detected a 35-day egg viability. The infective larvae of Haemonchus, Cooperia and Oesophagostomum genus were found until the 14th day of observation and the infective larvae of Trichostrongylus and Ostertagia genus, until the 35th day. Therefore, liquefied cattle manure containing Strongyloidea eggs must remain under anaerobic conditions for at least 35 days before its safe return to the environment.
J R Lichtenfels - One of the best experts on this subject based on the ideXlab platform.
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an annotated checklist by genus and species of 93 species level names for 51 recognized species of small strongyles nematoda Strongyloidea cyathostominea of horses asses and zebras of the world
Veterinary Parasitology, 1998Co-Authors: J R Lichtenfels, V A Kharchenko, R C Krecek, Lynda M GibbonsAbstract:Abstract The results of an international collaborative effort to prepare a recommended list of scientific names for the small strongyles (Nematoda: Strongyloidea: Cyathostominea) of horses, donkeys and zebras are reported. Fifty-one valid species are recognized in 13 genera, including Cyathostomum , Coronocyclus , Cylicodontophorus , Cylicocyclus , Cylicostephanus , Skrjabinodentus , Tridentoinfundibulum , Petrovinema , Poteriostomum , Parapoteriostomum , Hsiungia , Cylindropharynx and Caballonema . In addition, 42 other species level names are listed as synonyms of the 51 recognized species or as species inquirendae (10 species) or nomen nudum (one species). Numerous annotations provide information on the nomenclatural and systematics history, current status and additional studies needed.
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coronocyclus ulambajari n sp nematoda Strongyloidea from horses of mongolia
Journal of Parasitology, 1994Co-Authors: G M Dvojnos, V A Kharchenko, J R LichtenfelsAbstract:Coronocyclus ulambajari n. sp. (Strongyloidea: Cyathostominae) from horses of Mongolia is de- scribed. The external leaf-crown (ELC) of the new species consists of 28 elements and the internal leaf-crown (ILC) of approximately 80 elements. A spindle-shaped (in optical section) mouth collar support is separated anteriorly from the buccal capsule and connected to it and elements of leaf-crowns by bundles of connective tissue. The buccal capsule is cylindrical, circular in cross-section, and approximately 3 times as wide as deep. A large, tonguelike dorsal cone protrudes from the floor of the buccal capsule overlying the large dorsal esophageal tooth. The duct of the dorsal esophageal gland opens at the tip of the dorsal cone. The tail and vagina of females are short, and the vulva is close to the anus. The buccal capsule and dorsal cone are most similar to Coronocyclus labratus, but differ significantly in size of dorsal cone and relative width and depth of the buccal capsule as well as characteristics of the leaf-crowns and female reproductive systems.
A Deyhazra - One of the best experts on this subject based on the ideXlab platform.
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zur wirtsspezifitat von syngamus trachea Strongyloidea nematoda
Journal of Veterinary Medicine Series B-infectious Diseases and Veterinary Public Health, 2010Co-Authors: K Enigk, A DeyhazraAbstract:Zusammenfassung Ubertragungsversuche mit Syngamus trachea auf zwolf Hausenten, Anas platyrhynchos domestica, durch orale Verabreichung reifer Syngamuseier verliefen negativ, ebenso auf sieben Haustauben, Columba livia domestica, drei Zwergblasganse, Anser erythropus, zwei Singschwane, Cygnus cygnus, und funf Teichhuhner, Gallinula chloropus. Die Hausgans, Anser anser domesticus, erwies sicht als empfanglich, ebenso die japanische Zwergwachtel, Coturnix coturnix japonica. In sechs Silbermowen, Larus argentatus, wurde Syngamus trachea geschlechtsreif, die Patenz betrug jedoch nur 2–9 Tage. In je einem von vier infizierten Sabelschnablern, Recurvirostra avosetta, acht Kiebitzen, Vanellus vanellus, und sieben Austernfischern, Haematopus ostralegus, wurde das 4. oder unreife 5. Stadium erreicht. Zur Geschlechtsreife entwickelte sich Syngamus trachea hier nicht. Die Untersuchungen wurden durch eine Beihilfe der Gesellschaft der Freunde der Tierarztlichen Hochschule ermoglicht. Bei der Durchfuhrung der Versuche wurden wir durch die Herren Fischer und Reinsch, Laboranten des Instituts, unterstutzt. Hierfur sagen wir unseren besten Dank. Summary The host specificity of Syngamus trachea (Strongyloidea, Nematoda) Attempts to transmit Syngamus trachea to nine domestic ducks (Anas platyrhynchos domestica) by oral administration of mature Syngamus eggs gave negative results, and the same occurred with seven domestic pigeons (Columba livia domestica), three lesser white-fronted geese (Anser erythropus), two whooper swans (Cygnus cygnus) and five moorhens (Gallinula chloropus). The domestic goose (Anser anser domesticus) proved to be susceptible, as also was the Japanese dwarf quail (Coturnix coturnix japonica). In six herring gulls (Larus argentatus) the Syngamus trachea became sexually mature but the patent period lasted only two to nine days. In one out of four infected avocets (Recurvirostra avosetta), eight lapwings (Vanellus vanellus) and seven oyster catchers (Haematopus ostralegus) the parasite reached the fourth or fifth immature stages. In none of these species did Syngamus trachea reach sexual maturity. Resume Sur la specificite de l'hote de Syngamus trachea (strongyloide, nematode) Des essais de transmission de Syngamus trachea sur neuf canards colvert domestiques (Anas platyrhynchos domestica), par administration orale d'oeufs de Syngamus a maturite, s'averent negatifs. Il en est de měme chez sept pigeons biset domestiques (Columba livia domestica), trois oies naines (Anser erythropus), deux cygnes sauvages «chanteurs» (Cygnus cygnus) et cinq poules d'eau (Gallinula chloropus). L'oie cendred domestique (Anser anser domesticus), de měme que la caille naine japonaise (Coturnix coturnix japonica), se sont revelees sensibles. Chez six goelands argentes (Larus argentatus), Syngamus trachea est parvenu a maturite sexuelle, avec une patence de 2–9 jours seulement. Sur quatre avocettes (Recurvirostra avosetta), huit vanneux huppes (Vanellus vanellus) et sept huitriers pies (Haematopus ostralegus) infectes, on trouve une fois par espece d'oiseau le 4eme ou le 5eme stade immature. Syngamus trachea n'a pas atteint dans ces cas la maturite sexuelle. Resumen Sobre la especificidad de anfitrion de Syngamus trachea (Estrongiloideos, Nematodos) Los ensayos de transmision con Syngamus trachea a nueve patos domesticos, Anas platyrhynchos domestica, mediante la administracion oral de huevos Syngamus maduros, resultaron negativos, igual que a siete palomas domesticas, Columba livia domestica, tres ansares caretos enanos, Anser erythropus, dos cisnes cantores, Cygnus cygnus, y cinco pollas de agua, Gallinula chloropus. El ganso domestico, Anser anser domesticus, resulto ser receptible, igual que la codorniz japonesa enana, Coturnix coturnix japonica. En seis gaviotas comunes, Larus argentatus, maduro Syngamus trachea sexualmente, pero la patencia solo duraba 2-9 dias. En cada vez una de cuatro avocetas infestadas, Recurvirostra avosetta, ocho ave frias, Vanellus vanellus, y siete ostreros, Haematopus ostralegus, se alcanzo el 4° estadio o el 5° inmaturo. Aqui no se desarrollo Syngamus trachea hasta adquirir la madurez sexual.
