Folia Parasitologica - Most viewed articles

MORPHOLOGY OF THE UTERUS OF ASCARIS-LUMBRICOIDES IN THE REGION WHERE FERTILIZATION AND FORMATION OF EGGSHELL OCCUR

H LYSEK, J ONDRUS

Folia Parasitologica 39[1] 41-50 (1992)  

Morphology of the female reproductive system of Ascaris lumbricoides L. was studied in the region starting with the junction between the oviduct and the uterus (O-U) up to the junction of both uterine branches into the vagina with regard to the process of fertilization and formation of egg-shells. In the O-U junction morphology differed in two following sections: a continuous simple squamous up to simple cuboidal epithelium, and simple cuboidal up to columnar epithelium with broad intercellular spaces leading into the lumen of the tubular reproductive organ filled with sperm. The area in the O-U junction zone was found where the wall of the organ was...

HISTOCHEMISTRY OF THE RACEMOSE FORM OF CYSTICERCUS-CELLULOSAE

VALKOUNOVA J, ZDARSKA Z, SLAIS J

Folia Parasitologica 39[3] 207-226 (1992)  

The racemose form of brain cysticercosis arises from an intense proliferation of the bladder wall after the scolex part has degenerated. The proliferating zones are 2-3 times thicker than the remaining parts of the bladder and are characterized by a densely folded tegument and thick subtegumental and parenchymal layers. The tegument and subtegumental cells contain a large amount of acid mucosubstances with sulpho groups and hydrophilic lipids. and exhibit a high activity of alkaline and acid phosphatases. The parenchyma contains a large amount of glycogen. With the gradual aging of the bladder wall and with the first signs of autolysis, the enzymatic...

GEOGRAPHICAL-DISTRIBUTION AND HOST SPECIFICITY OF ECTOPARASITES OF AUSTRALIAN BREAM, ACANTHOPAGRUS SPP (SPARIDAE)

BYRNES T, ROHDE K

Folia Parasitologica 39[3] 249-264 (1992)  

The geographical distribution and host specificity of ectoparasites of Australian bream, Acanthopagrus australis (Gunther), A. butcheri (Munro), A. berda (Forskal) and A. latus (Houttuyn) are discussed. A total of 48 species of ectoparasites are recorded, i.e. 25 species of Copepodal 15 or Monogenea, 2 of Branchiura, 5 of Isopoda, and 1 of Hirudinea. Most parasite species have a wider geographical range than their main host species and do not conform to the zoogeographical regions established for free-living species. The monogeneans are host specific to the genus Acanthopagrus though they are commonly found on more than one species. Udonella has been...

A SCANNING ELECTRON-MICROSCOPE STUDY OF TOXOCARA-GENETTAE WARREN, 1972 (ASCARIDAE), WITH DATA ON MORPHOMETRIC VARIATION

SANMARTIN ML, ALVAREZ F, BOTELLA HG, IGLESIAS R, ESTEVEZ J, LOPEZROMAN R

Folia Parasitologica 39[4] 355-367 (1992)  

We have carried out a morphometric study of the ascaridoid nematode Toxocara genettae, parasite of the small intestine of the genet Genetta genetta, with the aid of scanning electron microscopy (SEM). Host specimens were trapped in Galicia, NW Spain. The most characteristic features of this nematode are the absence of cervical alae, replaced by narrow lateral crests running along the length of the body and the presence of a mucron at the end of the male tail. Other features of interest include the number of labial denticles (90-98 and 96-102 on the dorsal lip, 82 96 and 90-96 on the subventral lip of male and female, respectively), the width of the...

IMMUNIZATION OF RABBITS WITH ANTIGENS FROM PSOROPTES-CUNICULI, THE RABBIT SCAB MITE

UHLIR J

Folia Parasitologica 39[4] 375-382 (1992)  

Rabbits immunized with the whole body extract of Psoroptes cuniculi (Delafond, 1859) developed partial immunity to the infestation with this mite. These rabbits manifested P cuniculi antigen-induced cell response and a high level of specific serum antibody after the immunization. Electrophoretic separation of the mite extract followed by immunostaining with various sera revealed differences between artificially immunized and naturally infested rabbits to most of the P cuniculi antigens. However, the specific antibody pattern, that was developed by the immunized rabbits, was not changed after these rabbits were infested with the mites.

The effect of sodium ions on the excystment of Hymenolepis diminuta cysticercoids

J. Barrett and W. Y. Precious

Folia Parasitologica 41[1] 44 (1994)  

Some new data on the intermediate and paratenic hosts of the nematode Anguillicola crassus Kuwahara, Niimi et Itagaki, 1974 (Dracunculoidea), a swimbladder parasite of eels

F. Moravec and R. Konecny

Folia Parasitologica 41[1] 65-70 (1994)  

Two new species of the genus Goezia, G. brasiliensis sp. n. and G. brevicaeca sp. n. (Nematoda: Anisakidae), from freshwater fishes in Brazil

F. Moravec, A. Kohn and B. M. M. Fernandes

Folia Parasitologica 41[4] 271-278 (1994)  

Seasonal variation on the role of grey squirrels as hosts of Ixodes ricinus, the tick vector of the Lyme disease spirochaete, in a British woodland

N. G. Craine, S. E. Randolph and P. A. Nuttall

Folia Parasitologica 42[1] 73-80 (1995)  

Morphology, homogonic development, and lack of a free-living generation in Strongyloides robustus (Nematoda, Rhabditoidea), a parasite of North American sciurids

C. M. Bartlett

Folia Parasitologica 42[2] 102-114 (1995)  

Histopathology of the stomach lesion caused by Physaloptera brevivaginata (Nematoda: Physalopteridae) in bats in Spain

P. Botella and J. G. Esteban

Folia Parasitologica 42[2] 143-148 (1995)  

Nematodes parasitic in fishes of cenotes (= sinkholes) of the Peninsula of Yucatan, Mexico. Part 2. Larvae

F. Moravec, C. Vivas-Rodríguez, T. Scholz, J. Vargas-Vázquez, E. Mendoza-Franco, J. J. Schmitter-Soto and D. González-Solís

Folia Parasitologica 42[3] 199-210 (1995)  

Ultrastructure of the primitive epithelium of Echinostoma revolutum (Digenea: Echinostomatidae) cercaria

Z. Žďárská

Folia Parasitologica 42[4] 266-268 (1995)  

Myleusnema bicornis gen. et sp.n. (Nematoda: Kathlaniidae), an intestinal parasite of a freshwater serrasalmid fish, Myleus ternetzi, from French Guiana

František Moravec and Vernon E. Thatcher

Folia Parasitologica 43[1] 53-59 (1996)  

A new look at the life-cycle of Hoferellus carassii in the goldfish (Carassius auratus auratus) and its relation to

Alexander Trouillier, Mansour El-Matbouli and Rudolf W. Hoffmann

Folia Parasitologica 43[3] 173-187 (1996)  

Ichthyophthirius multifiliis: observations on the life-cycle and indications of a possible sexual phase

Richard A. Matthews, Brenda F. Matthews and Louise M. Ekless

Folia Parasitologica 43[3] 302-208 (1996)  

Occurrence, prevalence, and effects of the myxozoan Tetracapsula bryozoides parasitic in the freshwater bryozoan Cristatella mucedo (Bryozoa: Phylactolaemata)

Beth Okamura

Folia Parasitologica 43[4] 262-266 (1996)  

Redescription of Proteocephalus macrophallus, a parasite of Cichla ocellaris (Pisces: Cichlidae) from South America

Tomáš Scholz, Alain de Chambrier, Antonín Prouza, and Ramiro Royero

Folia Parasitologica 43[4] 287-291 (1996)  

Oochoristica macallisteri sp. n. (Cyclophyllidea: Linstowiidae) from the side-blotched lizard, Uta stansburiana (Sauria: Phrynosomatidae), from California, USA

Charles R. Bursey and Stephen R. Goldberg

Folia Parasitologica 43[4] 293-296 (1996)  

Apodemodex cornutus gen. n. et sp. n. (Acari: Demodecidae): new genus and new species of the hair follicle mite from the Mediterranean water shrew, Neomys anomalus (Insectivora: Soricidae)

Vladimír Bukva

Folia Parasitologica 43[4] 312-316 (1996)  

The distribution of the metacercariae of Diplostomum phoxini in the brain of minnows, Phoxinus phoxinus

Iain Barber & D. W. T. Crompton

Folia Parasitologica 44[1] 19-25 (1997)  

Larval stages of trematodes from freshwater molluscs of the Yucatan Peninsula, Mexico

Ditrich O, Scholz T, AguirreMacedo L, VargasVazquez J

Folia Parasitologica 44[2] 109-127 (1997)  

Examination of 4055 molluscs of 10 species from cenotes (= sinkholes) and other freshwater bodies in the Yucatan Peninsula, Mexico revealed the presence of larval stages of 13 trematodes. The following species were found: Echinochosmus leopoldinae Scholz, Ditrich et Vargas-Vazquez, 1996, E. macrocaudatus Ditrich, Scholz et Vargas-Vazquez, 1996 (Echinostomatidae), Saccocoelioides sp. (? sogandaresi Lumsden, 1963) (Haploporidae), Crassicutis cichlasomae Manter, 1936, pleurolophocercous ophthalmocercaria sp. (Homalometridae), Ascocotyle (Ascocotyle) sp., Ascocotyle (Phagicola) nana Ransom, 1920 (Heterophyidae), Oligogonatylus manteri Watson, 1976 (Cryptogonimidae),...

Caryospora kalimantanensis sp n (Apicomplexa: Eimeriidae) from the mangrove snake Boiga dendrophila (Serpentes: Boiginae) from Kalimantan

Modry D, Koudela B

Folia Parasitologica 44[3] 195-198 (1997)  

A new coccidian parasite of the genus Caryospora Leger is described from the colubrid snake Boiga dendrophila Boie, 1827 imported from Kalimantan. Oocysts of Caryospora kalimantanensis sp. n. are spherical, 18.7 (17.0-20.0) mu m in diameter, with a bilayered slightly pitted and brownish oocyst wall. A micropyle and oocyst residuum are absent. One globular polar granule is present in 45% of sporulated oocysts. Sporocysts are ovoidal to ellipsoidal, 14.5 (13.0-15.5) x 10.5 (10.0-11.0) mu m, with prominent Stieda and substieda bodies. Sporocyst residuum is present as small granules scattered among sporozoites. Sporozoites are elongate, lying lengthwise...

Helminth parasites of Epinephelus morio (Pisces: Serranidae) of the Yucatan Peninsula, southeastern Mexico

Moravec F, VidalMartinez VM, VargasVazquez J, VivasRodriguez C, GonzalezSolis D, MendozaFranco E, SimaAlvarez R, GuemezRicalde J

Folia Parasitologica 44[4] 255-266 (1997)  

The present paper comprises a systematic survey of helminths from 202 red groupers, Epinephelus morio (Valenciennes) (Pisces: Serranidae), the most important commercial marine fish in the region, collected from ten localities off the Yucatan Peninsula in the Gulf of Mexico during 1994-1996; two more helminth species were recorded from E. morio earlier. Thirty species of helminths were found: Monogenea 1, Cestoda 3, Trematoda 17, Nematoda 8, Acanthocephala 1. Of them, 15 species were adults, whereas 15 species were larval stages parasitizing piscivorous elasmobranch and teleostean fishes, birds and marine mammals as adults. A new didymozoid trematode,...

Pseudorhabdosynochus yucatanensis sp. n. (Monogenea: Diplectanidae) from the gills of the red grouper Epinephelus morio (Pisces: Serranidae) of the Yucatan Peninsula, Mexico

VidalMartinez VM, AguirreMacedo L, MendozaFranco EF

Folia Parasitologica 44[4] 274-278 (1997)  

Pseudorhabdosynochus yucatanensis sp. n. (Diplectanidae) is described from the gills of the red grouper, Epinephelus morio (Valenciennes, 1824) (Serranidae), from the coast of the Yucatan Peninsula, Mexico. This new species is characterized by having both the ventral and the dorsal squamodiscs composed of 10-12 rows of rods, with 0-1 innermost tow forming a closed circle, Furthermore, the vagina of P. yucatanensis has a non-sclerotized ampulla with a fine, sclerotized duct leading to a sclerotized seminal receptacle. Prevalence (percentage of infected fish) and abundance (mean number of worms per examined fish) were estimated for P. yucatanensis from...

Effects of colchicine on the number of T2 vesicles in the tegument of Fasciola hepatica

Stoitsova S, Gorchilova L

Folia Parasitologica 44[4] 283-288 (1997)  

The role of microtubules in the secretory processes in the tegument of adult trematode Fasciola hepatica L. is studied by estimating the effects of colchicine, a substance known to disrupt microtubules, on the number of T2 vesicles. Tissue slices of the worm are incubated in Hedon-Fleig medium with or without 5 x 10(-4)M colchicine. The dynamics of the colchicine-provoked secretory block is examined by morphometry on samples processed for electron microscopy. T2 vesicles are estimated as a total number or separately within three levels (apical, sub-apical and central) of the distal tegument. The secretory block is demonstrated as reduction in the total...

Scolex morphology of Proteocephalus tapeworms (Cestoda : Proteocephalidae), parasites of freshwater fish in the Palaearctic Region

Scholz T, Drabek R, Hanzelova V

Folia Parasitologica 45[1] 27-43 (1998)  

The morphology of the scoleces of 11 Proteocephalus species, parasites of freshwater fish in the Palaearctic Region, was compared using light and scanning electron microscopy. The following taxa were evaluated: Proteocephalus ambiguus (Dujardin, 1845); P. cernuae (Gmelin, 1790); P. exiguus La Rue, 1911; P. filicollis (Rudolphi, 1802); P. mucrocephalus (Creplin, 1825); P. osculatus (Goeze, 1782); P. percae (Muller, 1780); P. pollanicola Gresson, 1952; P. sagittus (Grimm, 1872); P. thymalli (Annenkova-Chlopina, 1923); and P. torulosus (Batsch, 1786). Some features as overall shape of the scolex, its size, shape and size of an apical sucker were found...

Histopathological reactions of the blue shark, Prionace glauca, to postlarvae of Hepatoxylon trichiuri (Cestoda : Trypanorhyncha : Hepatoxylidae) in relationship to scolex morphology

Campbell RA, Callahan C

Folia Parasitologica 45[1] 47-52 (1998)  

Postlarvae of the cestode Hepatoxylon trichiuri (Holten, 1802) were found attached to the surface of viscera of Prionace glauca (Linnaeus, 1758) taken from Atlantic coastal waters off the south coast of Massachusetts, USA, Gross anatomy of the attachment site shows a quadripartite rim surrounding a deep pit with holes corresponding to the penetration site of each tentacle. Hyperplasia of the liver capsule into outgrowths at the attachment site conform to the attachment of the bothridia. The cuboidal epithelium of the liver capsule became columnar forming papillary outgrowths, with a dense fibrotic reaction beneath the attachment site and infiltration...

The serological surveillance of several groups of patients using antigens of Encephalitozoon hellem and E. cuniculi antibodies to microsporidia in patients

Zuzana Kučerová-Pospíšilová, Oleg Ditrich

Folia Parasitologica 45[2] 108-112 (1998)  

This study was undertaken to attempt to identify correlations between microsporidial seroprevalence data in man, clinical diseases and groups of people at the risk of HIV/AIDS infection. Groups of patients were selected according to the predilection of members of the genus Encephalitozoon for nervous and kidney tissue. Female prostitutes and alcohol and intravenous drug abusers were selected as groups at risk of HIV/AIDS infections. A total of 401 samples of human sera were examined for the presence of antimicrosporidial IgG antibodies by ELISA test with a titre of 600 considered borderline positivity. The highest occurrence of antimicrosporidial antibodies...

Intestinal microsporidiosis in African skink Mabuya perrotetii

Břetislav Koudela, Elizabeth S. Didier, Linda B. Rogers, David Modrý, Štěpánka Kučerová

Folia Parasitologica 45[2] 149-155 (1998)  

Intestinal microsporidiosis was documented by detecting abundant slightly curved spores (2.9 × 1.2 µm) in the faeces of five of twelve skinks Mabuya perrotetii Duméril et Bibron, 1839 that originated from Ghana. Clinically, the microsporidiosis was characterized by decreased appetite, diarrhea, and weight loss. Histopathological changes consisted of villous atrophy, blunting of mucosa and flattening of individual epithelial cells in the large intestine. The ultrastructure of microsporidian spores was consistent with an Encephalitozoon species. The PCR-RFLP assay and the heteroduplex mobility shift analyses were used to verify that the skink microsporidian...