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Folia Parasitologica

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https://www.readbyqxmd.com/read/29063858/some-nematodes-from-freshwater-fishes-in-central-africa
#1
Frantisek Moravec, Miloslav Jirku
Twenty species (sixteen adult and four larval) of parasitic nematodes belonging to the Ascaridoidea, Camallanoidea, Cosmocercoidea, Dioctophymatoidea, Habronematoidea, Oxyuroidea, Seuratoidea, and Thelazioidea were collected from freshwater fishes of the Congo River basin in the Democratic Republic of the Congo and the Central African Republic in 2008 and 2012, respectively. Based on light and scanning electron microscopical examination, many species are redescribed in detail. This material also contained four previously unknown species, Labeonema longispiculatum sp...
October 20, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/29063857/anti-tumour-necrosis-factor-activity-in-saliva-of-various-tick-species-and-its-appearance-during-the-feeding-period
#2
Marketa Rezkova, Jan Kopecky
Tumour necrosis factor (TNF) plays a central role in the inflammatory process. In the skin, it contributes to immune containment of tick-transmitted pathogens like Borrelia burgdorferi. In the saliva of some tick species, active compounds are present that inhibit detection of TNF in specific ELISA. We compared the presence of anti-TNF activity in saliva or salivary gland extract from 11 tick species from the family Ixodidae and demonstrated it in genera Ixodes Latreille, 1795 and Haemaphysalis Koch, 1844. Analysis of anti-TNF activity in Ixodes ricinus (Linnaeus, 1758) saliva during the feeding period showed that it is present in the late, rapid phase of engorgement...
October 20, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28980971/feeding-strategies-and-competition-between-terrestrial-haemadipsa-leeches-euhirudinea-arhynchobdellida-in-danum-valley-rainforest-borneo-sabah
#3
Piotr Gasiorek, Hanna Rozycka
Haemadipsid leeches are among the most successful terrestrial invertebrates in Bornean rainforests. They are very common ectoparasites of vertebrates, and their abundance has facilitated the conduction of numerous projects in the fields of ecology, zoogeography and taxonomy. We undertook research on two species inhabiting lowland dipterocarp forest, Haemadipsa picta Moore, 1929 and Haemadipsa subagilis (Moore, 1929), in order to address the following questions: (a) is there a difference in leech abundance between trails and off-trails?; (b) is ambush location dependent on specimen size or is species-specific?; (c) is intra- and interspecific competition limited by differences in foraging behaviours or vertical niche partitioning? Our results clearly show that H...
October 3, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28980972/myxobolus-pseudowulii-sp-n-myxozoa-myxosporea-a-new-skin-parasite-of-yellow-catfish-tachysurus-fulvidraco-richardson-and-redescription-of-myxobolus-voremkhai-akhmerov-1960
#4
Bo Zhang, Yanhua Zhai, Yang Liu, Zemao Gu
Two species of Myxobolus Bütschli, 1882 were found in yellow catfish Tachysurus fulvidraco (Richardson). A species of Myxobolus infecting the gills was morphologically identified as Myxobolus voremkhai (Akhmerov, 1960) and it was characterised here with additional morphological and molecular data. The other species of Myxobolus infecting the host's skin did not conform to any known myxosporean species. It is characterised by the presence of round, black or milky white plasmodia with black spots. Myxospores are pyriform in frontal view and lemon-shaped in lateral view, measuring 12...
September 27, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28906255/echinococcus-multilocularis-vesicular-fluid-inhibits-activation-and-proliferation-of-natural-killer-cells
#5
Anne-Pauline Bellanger, Valentine Mougey, Jean-Rene Pallandre, Houssein Gbaguidi-Haore, Yann Godet, Laurence Millon
Alveolar echinococcosis is a severe chronic helminthic disease that mimics slow-growing liver cancer. The immune evasion strategy of Echinococcus multilocularis Leuckart, 1863 remains poorly understood. The aim of this study was to investigate in vitro the impact of E. multilocularis vesicular fluid (Em-VF) on peripheral blood mononuclear cells (PBMC) and on natural killer (NK) cells. PBMC and NK cells were exposed to Em-VF (1 µg/ml) during six days. The effect of Em-VF was assessed on CD69, viability and proliferation, and on and transforming growth factor β (TGF-β), interferon γ (IFN-γ), interleukin 17 (IL-17) and interleukin 10, using flow cytometry and ELISA, respectively...
August 25, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28906256/variability-of-species-of-babesia-starcovici-1893-in-three-sympatric-ticks-ixodes-ricinus-dermacentor-reticulatus-and-haemaphysalis-concinna-at-the-edge-of-pannonia-in-the-czech-republic-and-slovakia
#6
Marketa Rybarova, Michaela Honsova, Ivo Papousek, Pavel Siroky
The distribution, variability and host specificity of species of Babesia Starcovici, 1893 were studied in questing ticks collected on the northwestern edge of the Pannonian Basin in the south-easternmost part of the Czech Republic and in western Slovakia. The area is characterised by relatively natural floodplain habitats and the sympatric occurrence of three tick species possessing wide host spectra, namely Ixodes ricinus (Linnaeus), Dermacentor reticulatus (Fabricius) and Haemaphysalis concinna Koch. Analysis was carried out on 1,408 I...
August 23, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28906254/a-synoptic-review-of-caryophyllaeus-gmelin-1790-cestoda-caryophyllidea-parasites-of-cyprinid-fishes
#7
Daniel Barcak, Mikulas Oros, Vladimira Hanzelova, Tomas Scholz
Tapeworms of the genus Caryophyllaeus Gmelin, 1790 (Caryophyllidea: Caryophyllaeidae), common parasites of cyprinid fishes, are reviewed and taxonomic status of 42 nominal taxa that have been placed in the genus during its long history is clarified. The following seven species occurring in the Palaearctic Region are recognised as valid: C. laticeps (Pallas, 1781), C. auriculatus (Kulakovskaya, 1961), C. balticus (Szidat, 1941) comb. n. (syn. Khawia baltica Szidat, 1941), C. brachycollis Janiszewska, 1953, C...
August 16, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783031/patterns-in-the-distribution-and-directional-asymmetry-of-fleas-living-on-the-northern-white-breasted-hedgehog-erinaceus-roumanicus
#8
Krzysztof Dudek, Gabor Foldvari, Viktoria Majlathova, Igor Majlath, Krisztina Rigo, Viktor Molnar, Maria Toth, Lukasz Jankowiak, Piotr Tryjanowski
Fleas infecting northern white-breasted hedgehogs, Erinaceus roumanicus (Barrett-Hamilton), collected from 2009-2011 in Budapest (Hungary) were studied. A total of 305 white-breasted hedgehogs were captured and 1,251 fleas were collected. The flea community comprised two species, the hedgehog flea Archaeopsylla erinacei (Bouche, 1835) and the dog flea Ctenocephalides canis (Curtis, 1826), although the latter was only found on three hedgehogs. Fleas were found on half of the host specimens (51%; n = 156) where their distribution was strongly aggregated...
August 4, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783034/do-small-samples-underestimate-mean-abundance-it-depends-on-what-type-of-bias-we-consider
#9
Jeno Reiczigel, Lajos Rozsa
Former authors claimed that, due to parasites' aggregated distribution, small samples underestimate the true population mean abundance. Here we show that this claim is false or true, depending on what is meant by 'underestimate' or, mathematically speaking, how we define 'bias'. The 'how often' and 'on average' views lead to different conclusions because sample mean abundance itself exhibits an aggregated distribution: most often it falls slightly below the true population mean, while sometimes greatly exceeds it...
July 26, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783028/castosyringophilus-meropis-sp-n-acariformes-syringophilidae-a-new-quill-mite-species-parasitising-the-world-population-of-merops-apiaster-linnaeus-coraciiformes-meropidae
#10
Maciej Skoracki, Martin Hromada, Bozena Sikora
A new species, Castosyringophilus meropis sp. n., found in quills of feathers of the European bee-eater Merops apiaster Linnaeus (Coraciiformes: Meropidae) is described. This new species is close to C. claravis Skoracki et Glowska, 2008 and differs, in females, by the presence apunctate coxal fields (vs sparsely punctate in C. claravis) and by the lengths of setae d1 145-180 µm, f2 170-185 µm and ag3 190-215 µm (vs d1 200-220 µm, f2 230-250 µm and ag3 150-170 µm). We present a vast mite material collected from bee-eaters originated from different localities in Europe, Asia and Africa, both breeding and wintering grounds of this bird...
July 26, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783033/musculoskeletal-and-nervous-systems-of-the-attachment-organ-in-three-species-of-diplectanum-monogenea-dactylogyroidea
#11
Anatoly A Petrov, Evgenija V Dmitrieva, Maryana P Popyuk, Pavel I Gerasev, Sergey A Petrov
The taxonomy of Diplectanum Diesing, 1858, a genus of monopisthocotylean monogeneans, remains unsettled and needs to be revised based on new morphological criteria. Recent studies in monopisthocotyleans have shown that the muscle arrangement in the posterior attachment organ (haptor) differs between congeneric species and can be used as an additional criterion in genus-level taxonomy. To explore the possibility of using the haptoral musculature and nervous system in the taxonomy of Diplectanum, we conducted a detailed confocal-microscopy study of three species of Diplectanum (D...
July 11, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783032/seroprevalence-of-toxoplasma-gondii-infection-in-goats-from-the-south-west-region-of-poland-and-the-detection-of-t-gondii-dna-in-goat-milk
#12
Jacek Sroka, Pawel Kusyk, Ewa Bilska-Zajac, Jacek Karamon, Jacek Dutkiewicz, Angelina Wojcik-Fatla, Violetta Zajac, Krzysztof Stojecki, Miroslaw Rozycki, Tomasz Cencek
Toxoplasma gondii (Nicolle et Manceaux, 1908) is an obligatory intracellular protozoan parasite prevalent in animals and humans worldwide having medical and veterinary importance on account of causing abortion or congenital disease in intermediate hosts, including man. Since T. gondii has already been identified in the milk of goats, Capra aegagrus hircus (Linnaeus), the possibility of acquiring infection by ingesting unpasteurised goat milk should be taken into consideration. Thus, the aim of the present study was to determine the presence of T...
July 11, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783030/an-adult-cystidicolid-nematode-nematoda-cystidicolidae-from-the-subcutaneous-tissue-around-the-eye-of-percupinefish-diodon-nichthemerus-cuvier
#13
Kozue Sasaki, Yoshimi Miyagawa, Itsuki Kiyatake, Kiyoko Onda, Takaomi Ito, Mitsuhiko Asakawa
Three adult nematode specimens, all ovigerous females belonging to the family Cystidicolidae Skryabin, 1946, were found for the first time in the subcutaneous tissue around the eye of the captive porcupinefish Diodon nichthemerus Cuvier at a public aquarium in Osaka, Japan. Because no male was available, these could not be identified to the genus and species. This case highlights the risk of parasitism in aquaculture puffer fish, as these may ingest small shrimp, which probably act as intermediate hosts for the nematode...
July 10, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28783029/revised-classification-of-the-subfamily-leishmaniinae-trypanosomatidae
#14
Alexei Y Kostygov, Vyacheslav Yurchenko
In the present study, we critically revised the recently proposed classification of the subfamily Leishmaniinae Maslov et Lukeš in Jirků et al., 2012. Agreeing with erection of the genus Zelonia Shaw, Camargo et Teixeira in Espinosa et al., 2017 and the subgenus Mundinia Shaw, Camargo et Teixeira in Espinosa et al., 2017 within the genus Leishmania Ross, 1908, we argue that other changes are not well justified. We propose to: (i) raise Paraleishmania Cupolillo, Medina-Acosta, Noyes, Momen et Grimaldi, 2000 to generic rank; (ii) create a new genus Borovskyia gen...
July 10, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28664868/observations-on-non-random-distribution-of-spores-of-henneguya-spp-cnidaria-myxosporea-myxobolidae-within-plasmodia
#15
Jorge C Eiras, Manuel Cruz, Cristina Cruz, Aurelia Saraiva, Edson A Adriano, Csaba Szekely, Kalman Molnar
Species of the cnidarian genus Henneguya Thélohan, 1892 (Myxosporea: Myxobolidae) are histozoic parasites commonly found in freshwater and, more rarely, in marine fish. The development of these parasites in fish tissues includes the formation of plasmodia within which occurs the sporogony originating spores with two caudal processes, which are usually randomly distributed within the plasmodia. In this report the authors present some cases of non-random distribution of the spores of six species of Henneguya within their plasmodia...
June 20, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28620152/cryptosporidium-meleagridis-and-c-baileyi-apicomplexa-in-domestic-and-wild-birds-in-algeria
#16
Abd Elkarim Laatamna, Nikola Holubova, Bohumil Sak, Martin Kvac
A total of 345 faecal samples were collected from domestic, captive and wild birds in rural areas, urban areas and a Zoo in Algeria. Samples were screened for the presence of parasites belonging to the genus Cryptosporidium Tyzzer, 1910 by microscopy and PCR analysis of the small-subunit rRNA (SSU), actin and 60-kDa glycoprotein (gp60) genes. Cryptosporidium spp. were detected in 31 samples. Sequence analysis of SSU and actin genes revealed the presence of C. baileyi Current, Upton et Haynes, 1986 in domestic chicken broilers (n = 12), captive ostriches (n = 4) and a wild mallard (n = 1), and C...
June 13, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28620151/reproductive-innovation-and-the-recognition-of-a-new-genus-within-the-polystomatidae-monogenea-infecting-chelonian-vertebrates
#17
Richard C Tinsley
Polystomatid monogeneans have a wide diversity of life cycles correlated with the varied ecology and behaviour of their aquatic vertebrate hosts. Typically, transmission involves a swimming infective larva but most hosts are amphibious and invasion is interrupted when hosts leave water. A key life cycle adaptation involves a uterus that, in the most specialised cases, may contain several hundred fully-developed larvae prepared for instant host-to-host transmission. By contrast, one subfamily of the Polystomatidae - the Polystomoidinae, specific to chelonians (freshwater turtles) - has a simplified reproductive system without a uterus...
June 7, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28561739/inactivation-of-proteolytic-enzymes-by-eubothrium-rugosum-cestoda-from-the-gut-of-burbot-lota-lota
#18
Galina I Izvekova, TatyanaV Frolova, Evgeny I Izvekov
Parasitic organisms inhabiting the alimentary canal should permanently resist the destructive action of host digestive enzymes. The intestinal parasites were shown to produce specific protease inhibitors protecting them from proteolysis. However, little is known about this adaptive mechanism in cestodes so far, especially for the tapeworms dwelling inside the fish intestines. Here, we explored the ability to inactivate proteolytic enzymes in the fish tapeworm Eubothrium rugosum (Batsch, 1786) (Bothriocephalidea) parasitising the intestine of wild burbot, Lota lota (Linnaeus)...
May 9, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28561740/a-new-genus-of-proteocephalid-tapeworm-cestoda-from-the-marbled-swamp-eel-synbranchus-marmoratus-bloch-synbranchiformes-synbranchidae-in-the-river-paran%C3%A3-basin-argentina
#19
Nathalia J Arredondo, Philippe Vieira Alves, Alicia A Gil de Pertierra
Synbranchiella gen. n. is proposed to accommodate Synbranchiella mabelae sp. n. (Proteocephalidae: Monticelliinae) from the intestine of the marbled swamp eel Synbranchus marmoratus Bloch, in the River Colastiné, a tributary of the middle River Paraná in Argentina. The new genus is placed in the Monticelliinae because of the cortical position of the genital organs. It differs from all known monticelliine genera by the following combination of characters: (i) scolex robust, with a conical apex, without metascolex; (ii) biloculate suckers with a conspicuous septum separating unequally-sized loculi and a robust non-adherent area, lacking free posterior margin; (iii) vitelline follicles in two narrow lateral bands, extended throughout the nearly entire proglottid length; (iv) vagina always anterior to the cirrus-sac, with an inconspicuous vaginal sphincter; (v) a genital pore pre-equatorial...
May 5, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28443821/two-new-species-of-tetragonocephalum-cestoda-lecanicephalidea-from-pastinachus-sephen-myliobatiformes-dasyatidae-from-the-gulf-of-oman
#20
Atabak Roohi Aminjan, Malek Masoumeh
In the present study two new species of Tetragonocephalum Shipley et Hornell, 1905, T. mackenziei sp. n. and T. kazemii sp. n., are described from the spiral intestine of the cowtail stingray, Pastinachus sephen (Forsskål), from the northern coast of the Gulf of Oman. Tetragonocephalum mackenziei is distinguished from the 16 other valid species of Tetragonocephalum by a unique combination of characteristics, i.e. sperm-filled seminal receptacle in immature proglottids, body length (7.7-17.5 mm), body width (213-288 µm), number of proglottids (34-49), number of testes (10-14), size of scolex (228-315 µm × 213-288 µm) and size of acetabula (56-73 µm × 61-75 µm)...
April 24, 2017: Folia Parasitologica
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