Abstract:
:Except other functions, surface saccharide residues on trematode larvae are supposed either to be the targets of the intermediate (molluscan) and final host immune systems, or to represent candidates for molecular mimicry. Therefore, changes in surface saccharide patterns during the development of the avian schistosome Trichobilharzia szidati were characterized. Whole parasite larval stages and their tissue sections were examined using FITC- conjugated lectins. Marked surface differences were found among larval stages (miracidia, mother sporocysts, daughter sporocysts, cercariae, schistosomula). Staining by some lectins reflected known ultrastructural changes of the outer tegument. Reaction of lectins with cercarial embryos was almost negative. In case of other developmental stages, binding of at least one member from each carbohydrate-specificity group of lectins (Man/Glc-, GlcNAc-, Gal/GalNAc- and Fuc-specific) occurred. One exception is represented by mother and daughter sporocysts which practically failed to react with Fuc-specific lectins. Besides other lectins which recognized larval surfaces, alpha-L-fucose-specific lectins (LTA, UEA-1) and (GlcNAc beta 1-->4)n-specific WGA bound very strong to certain stages. The comparison of mature intrasporocystic cercariae with those emerged from snails brought the indication that some snail glycosylated molecules adhere to the surface of schistosome larvae or that emerged cercariae express some new carbohydrate epitopes under changed environmental conditions. The result partially supports the theory of parasite mimicry/ masking strategies and immune evasion in the host.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
Horák Psubject
Has Abstractpub_date
1995-01-01 00:00:00pages
255-65issue
4eissn
0015-5683issn
1803-6465journal_volume
42pub_type
杂志文章abstract::Eucoleus schvalovoj Kontrimavichus, 1963 (Nematoda: Capillariidae) is redescribed. The original description of this species was brief and inadequate in that it was based on just a few specimens removed from the Eurasian otter, Lutra lutra (Linnaeus, 1758) in the Khabarovsk region, USSR. Detailed morphological study of...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::Soricinia tripartita Zarnowski, 1955 is redescribed on the basis of specimens from the type host Sorex araneus Linnaeus from Lithuania, Latvia and Russia (Republic of Karelia and Republic of Komi - a new geographical record) as well as from Sorex satunini Ognev and Sorex volnuchini Ognev from Russia (Nalchik Area in t...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2014-04-01 00:00:00
abstract::Seven trematode species were found in the bile ducts and rumen of domestic ruminants: Fasciola gigantica, F. hepatica, Gigantocotyle explanatum, G. siemense, Paramphistomum epiclitum, Fischoederius cobboldi and Gastrothylax cruminifer. The parasites caused marked pathological changes in the liver and rumen. ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::Cercariae and metacercariae of three species of the Microphallidae Travassos, 1920 were found in snails and crustaceans from tributaries of the Brisbane River, Queensland, Australia. Specimens of Maritrema brevisacciferum Shimazu et Pearson, 1991 and Microphallus minutus Johnston, 1948, which have previously been repo...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2015.053
更新日期:2015-09-16 00:00:00
abstract::The survival of Encephalitozoon cuniculi Levaditi, Nicolau et Schoen, 1923 spores suspended in distilled water and exposed at defined temperatures was investigated. Infectivity of E. cuniculi spores was tested by inoculation of SCID mice. There was no marked loss of infectivity of spores stored at 4 degrees C for two ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::The tissue reaction to Cysticercus bovis in the lung of cattle with an experimental infection was an inflammatory rim originating in the immediate vicinity of the cysts. The cysts recovered at days 83 and 102 p.i. contained living cysticerci. The rim was composed either of a layer of high histiocytes organized in pali...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::Plasmodia of a Henneguya species measuring 70-900 microns and exhibiting season-dependent stages of development were detected throughout a three-year study on gill myxosporosis of Lake Balaton pikeperch (Stizostedion lucioperca (L.)). Sixty-five out of 160 fish (41%) examined in the period of study were infected by th...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::Three foxes about 18 weeks old were each subcutaneously inoculated with approximately 200 LD50 dose of extraneurally passaged strain of the Tahyna virus "236". Viremia was demonstrated in all animals during the 48-96 hours interval after infection. The maximum value was 1.31 dex LD50/0.02 ml. Three weeks after infecti...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::In the region of the Barun Glacier, in the vicinity of the Makalu Mountain in the Great Himalaya (Nepal) two mite species of the family Myobiidae, Protomyobia kounickyi sp. n. and Radfordia lemnina (C. L. Koch, 1841) were found on Soriculus caudatus soluensis (Gruber) and Alticola roylei (Gray) respectively at high al...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract::Sex ratio and engorged females ratio were studied in the main mosquito species populations (Aedes aegypti, Culex quinquefasciatus and partially Anopheles vagus) in the houses of Phnom Penh. Collections were carried out in 7 different localities, including area from the centre of the town to the periphery. In Ae. aegyp...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract::Effect of temperature on the sporogonic cycle of Plasmodium berghei (NK 65) has been studied in vector Anopheles stephensi. To determine the optimum temperature for development of parasite, fed mosquitoes were kept at 16 +/- 1 degree C, 19 +/- 1 degree C and 26 +/- 1 degree C temperature. The temperature 19 +/- 1 degr...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::The genome sequence of the microsporidian parasite Encephalitozoon cuniculi Levaditi, Nicolau et Schoen, 1923 contains about 2,000 genes that are representative of a non-redundant potential proteome composed of 1,909 protein chains. The purpose of this review is to relate some advances in the characterisation of this ...
journal_title:Folia parasitologica
pub_type: 杂志文章,评审
doi:10.14411/fp.2005.003
更新日期:2005-05-01 00:00:00
abstract::Although the microscopic examination of stool samples remains the reference method of choice for the diagnosis of intestinal protistan infections, this method is time-consuming and requires experienced and well-trained operators. The purpose of this study was to evaluate the level of agreement between the BD MAX TM En...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2020.020
更新日期:2020-08-07 00:00:00
abstract::A new nematode species (Neoascarophis mariae n. sp.) is described based on specimens collected from the Argentine goatfish Mullus argentinae (Hubbs et Marini) from coastal waters off the state of Rio de Janeiro, Brazil. In the genus, the new species belongs to the group of species with females that have the vulva near...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2012.010
更新日期:2012-02-01 00:00:00
abstract::Polymorphic microsatellite loci were characterised for two louse species, the anopluran Polyplax serrata Burmeister, 1839, parasitising Eurasian field mice of the genus Apodemus Kaup, and the amblyceran Myrsidea nesomimi Palma et Price, 2010, found on mocking birds endemic to the Galápagos Islands. Evolutionary histor...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2015.016
更新日期:2015-01-01 00:00:00
abstract::Life cycle of Eimeria coecicola was studied in experimentally infected rabbits by light microscopy and by transmission and scanning electron microscopy. First and second generation meronts developed in the vermiform appendix; third and fourth generation meronts were located in the epithelium of the ileum. Gametogony d...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::We studied the specificity of the individual developmental stages of Fasciola hepatica for evoking immune response of the host to reinfection with this parasite, whereby the primary infection was eliminated by a dose of 150 mg/kg diamphenethide administered in various intervals. In rats we observed a state of hypersen...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract::Particles of tick-borne encephalitis virus measuring 42-50 nm were found in in D. reticulatus nymphs after eclipse-phase lasting 10 days and were localized in epidermal and salivary gland cells. ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::The effects of condensed tannins (CTs) extracted from five species of plants on egg hatching and larval development of Teladorsagia circumcincta (Stadelmann, 1894) (syn. Ostertagia circumcincta) were evaluated using in vitro bioassays. The extracts of CTs were obtained from Lotus pedunculatus (LP), Lotus corniculatus ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2010.008
更新日期:2010-03-01 00:00:00
abstract::Monogeneans which parasitize fish are still treated by bathing the fish in solutions of simple chemicals or staining dyes. In the early 1960s an insecticide, trichlorphon, replaced to a large extent the formerly used simple chemicals. Its success was greater specificity against monogeneans and other ectoparasites, and...
journal_title:Folia parasitologica
pub_type: 杂志文章,评审
doi:
更新日期:1991-01-01 00:00:00
abstract::The following four species (only females available) of the Philometridae (Nematoda: Dracunculoidea) were recorded from freshwater fishes of Lake Turkana, northwestern Kenya in 2007-2008: Philometra bagri (Khalil, 1965) from the subcutaneous tissue around the mouth, on gill covers and the fin base of the bayad Bagrus b...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2009.008
更新日期:2009-03-01 00:00:00
abstract::The development of the nematode Procamallanus saccobranchi Karve, 1952, a parasite in the stomach of the fish Heteropneustes fossilis (Bloch), was studied in Mesocyclops crassus (Fischer) and Mesocyclops leuckarti (Claus). After being ingested by the copepods the nematode first-stage larvae penetrated into the haemoco...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2000.040
更新日期:2000-01-01 00:00:00
abstract::A new acanthocepohalan species, Moniliformis saudi sp. n. is described from the desert hedgehog, Paraechinus aethiopicus (Ehrenberg), in central Saudi Arabia. Fourteen other valid species of Moniliformis Travassos, 1915 are recognised. The new species of Moniliformis is distinguished by having a small proboscis (315-5...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2016.014
更新日期:2016-04-26 00:00:00
abstract::Twelve species of keratin decomposers isolated from 923 samples of feathers, nests and pellets of 90 species of free-living birds were clustered in 4 "econs" (numerical ecological groups): (A) Artroderma tuberculatum, A. ciferrii, A. multifidum, A. cuniculi (associated with the birds nesting in hollows); (B) Ctenomyce...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::In the course of the study "Toxoplasmosis and Prematurity" 330 blood samples from twins were examined. Our findings in a series of 21 premature twins (maternal sera were also examined) are reported in this paper. Toxoplasma antibodies were detected by the Sabin-Feldman test and specific IgM antibodies by the Remington...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::The effects of infections of Trichinella spiralis on 10 specific-pathogen-free Beagles were examined. Eight puppies received either 100, 500, 1,000, or 5,000 larvae, and 2 adult dogs received 1,000 larvae. Blood was drawn every 4 days, beginning 5 days before infection, for the determination of relative eosinophil num...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Acolpenceron australe sp. n. (Dactylogyridae, Dactylogyrinae) is described from ureters and renal tubules of Percichthys trucha (Cuvier et Valenciennes) (Perciformes, Percichthyidae) from Andean Patagonian lakes. The new species has a haptor with 14 hooks, with shanks comprised of two subunits. It has overlapped inter...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2003.018
更新日期:2003-06-01 00:00:00
abstract::Ixodid ticks remain attached to their hosts for several days to weeks. During this extended feeding process new proteins involved in the modulation of host immune responses are expressed in tick salivary glands. In our study a stimulatory or inhibitory effect of salivary gland extracts (SGE) of unfed and partially fed...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2003-12-01 00:00:00
abstract::Parasitological examinations of 102 specimens of the lesser great cormorant Phalacrocorax carbo sinensis (Blumenbach) from two nesting regions in the Czech Republic (South Bohemia and South Moravia) were carried out at the Institute of Parasitology, Czech Academy of Sciences (previously the Czechoslovak Academy of Sci...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2016.022
更新日期:2016-06-13 00:00:00
abstract::Spermiogenesis and the ultrastructural organisation of the spermatozoon of the trypanorhynch cestode Aporhynchus menezesi Noever, Caira, Kuchta et Desjardins, 2010 are described by means of transmission electron microscopy. Type I spermiogenesis of A. menezesi starts with the formation of a differentiation zone contai...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2011.007
更新日期:2011-03-01 00:00:00