Folia Parasitologica, vol. 46 (1999), issue 1

Immune mechanisms in fish skin against monogeneans - a model

Kurt Buchmann

Folia Parasitologica 46[1] 1-9 (1999)

Host responses against skin inhabiting monogeneans are commonly observed but the responsible immune mechanisms in the fish skin are insufficiently described. Based on recent knowledge of fish immunity and skin response mechanisms in mammals a model for the skin immunity in fish to monogenean infections is proposed. Important cellular components of the model are the epithelial cells, the mucous cells and leucocytes. The release of cytokines, e.g. IL-1, following mechanical or chemical injury of the epithelial cells, initiates a series of events leading to decrease of the ectoparasite population. Cytokines (e.g. IL-1, TNF, INF) are suggested to affect...

A phylogenetic analysis by multilocus enzyme electrophoresis and multiprimer random amplified polymorphic DNA fingerprinting of the Leishmania genome project Friedlin reference strain

Anne-Laure Bañuls, Sylvain Brisse, Issa Sidibé, Sébastien Noël, Michel Tibayrenc

Folia Parasitologica 46[1] 10-14 (1999)

We have assessed the phylogenetic status of the Leishmania genome project Friedlin reference strain by MLEE and multiprimer RAPD including a set of 9 stocks representative of the main Leishmania species and of the whole genetic diversity of the Leishmania genus. To our knowledge, the detailed genetic characterization of the Friedlin strain has never been published before. As previously recorded (Tibayrenc et al. 1993), MLEE and RAPD data gave congruent phylogenetic results. The Friedlin reference strain was definitely attributed to Leishmania (Leishmania) major Yakimoff et Schokhor, 1914. Five specific RAPD...

Development of Myxobolus dispar (Myxosporea: Myxobolidae) in an oligochaete alternate host, Tubifex tubifex

Kálmán Molnár, Amina El-Mansy, Csaba Székely, Ferenc Baska

Folia Parasitologica 46[1] 15-21 (1999)

The development of Myxobolus dispar Thélohan, 1895, a myxosporean parasite of the gills of common carp (Cyprinus carpio L.) was studied in experimentally infected oligochaetes Tubifex tubifex Müller. After infection of uninfected tubificids with mature spores of M. dispar, development of actinosporean stages was first observed light microscopically 21 days after initial exposure. In histological sections, early pansporocysts were located in the gut epithelium of experimental oligochaetes, while advanced stages occupied mostly the outer layers of the gut and the coelozoic space. Mature pansporocysts, each containing 8 raabeia...

Changes in the personality profile of young women with latent toxoplasmosis

Jaroslav Flegr, Jan Havlíček

Folia Parasitologica 46[1] 22-28 (1999)

Latent toxoplasmosis is the most widespread parasite infection in developed and developing countries. The prevalence of Toxoplasma gondii infection varies mostly between 20 to 80% in different territories. This form of toxoplasmosis is generally considered to be asymptomatic. Recently published results, however, suggest that the personality profiles of infected subjects differ from those of uninfected controls. These results, however, were obtained on non-standard populations (biologists or former acute toxoplasmosis patients). Here we studied the personality profiles of 191 young women tested for anti-Toxoplasma immunity during gravidity....

Heliocotyle kartasi gen. et sp. n. (Monogenea: Monocotylidae) parasitic on Pteromylaeus bovinus (Euselachii: Myliobatinae) from Tunisia

Lassâd Neifar, Louis Euzet, Oum Kalthoum Ben Hassine

Folia Parasitologica 46[1] 29-32 (1999)

Nine Pteromylaeus bovinus (E. Geoffroy St. Hilaire) (Euselachii: Myliobatinae) from the Tunisian coast were examined for ectoparasites during 1995, 1996 and 1997. A monogenean found on the gills of seven host specimens is described as a new species and a new genus, Heliocotyle, is proposed to accomodate it. The presence of a single sclerotized haptoral structure on the dorsal surface of the haptor leads us to place this species in the Heterocotylinae Chisholm, Wheeler et Beverley-Burton, 1995. The genus Heliocotyle is characterized by a haptor with only one dorsal structure and seven loculi, six being subdivided by pseudosepta....

Microhabitats of Pseudodactylogyrus anguillae and P. bini (Monogenea: Dactylogyridae) on the gills of large-size European eel Anguilla anguilla from Lake Gaj, Poland

Ewa Dzika

Folia Parasitologica 46[1] 33-36 (1999)

A study on the spatial distribution of two congeneric monogenean species Pseudodactylogyrus anguillae Yin et Sproston, 1948 and P. bini Kikuchi, 1929 on the gills of large size European eel Anguilla anguilla (L.) were conducted. Results were analysed with regard to: single-species infection, mixed infection and general occurrence of the parasites in the eel population. Statistical analysis revealed that the distribution of these species on the gill apparatus is fairly similar and the zones in which they occur more numerously coincide to a great extent. However, a number of differences were found. Both the possibility of simultaneous...

Redescription and life cycle of Gangesia parasiluri (Cestoda: Proteocephalidae), a parasite of the Far Eastern catfish Silurus asotus

Takeshi Shimazu

Folia Parasitologica 46[1] 37-45 (1999)

Gangesia parasiluri Yamaguti, 1934 (Cestoda: Proteocephalidae) is redescribed on the basis of adults obtained from the intestine of Silurus asotus Linnaeus (Teleostei: Siluridae) from Lake Suwa, Nagano Prefecture, central Japan. Its life cycle was studied in the field and laboratory. Rostellar hooks of the adults showed a wide variation in number, ranging from 35 to up to 57. Plerocercoids were found in the rectum of Chaenogobius urotaenia (Hilgendorf) and Rhinogobius brunneus (Temminck et Schlegel) (Teleostei: Gobiidae) from the same lake. Procercoids were formed in the haemocoel of Mesocyclops leuckarti (Claus)...

F. Moravec, R. Konečný, F. Baska, M. Rydlo, T. Scholz, K. Molnár, F. Schiemer: Endohelminth fauna of barbel, Barbus barbus (L.), under ecological conditions of the Danube basin in Central Europe.

Clive Kennedy

Folia Parasitologica 46[1] 46 (1999)

Studie AVČR 3/1997. Academia, Prague, 1997. 27 figs., 15 tables, 96 pp. Distributed by Academia, Prague, Czech Republic. Price CZK 80.

Actin and major sperm protein in spermatozoa of a nematode, Graphidium strigosum (Strongylida: Trichostrongylidae)

Aïcha Mansir, Jean-Lou Justine

Folia Parasitologica 46[1] 47-51 (1999)

In most amoeboid cells, the main protein involved in motility is actin. Nematode sperm are an exception, and their amoeboid motility is based on major sperm protein (MSP). We have studied the localization of actin and MSP in spermatids and spermatozoa of Graphidium strigosum (Dujardin, 1845), a species which has elongate male germ cells in which organelles are easily identified. Electrophoreses of G. strigosum sperm proteins indicate that the main protein band, about 15 kDa in molecular weight, is specifically recognized by an anti-MSP polyclonal antibody developed against MSP of Caenorhabditis elegans (Burke and Ward 1983). Actin...

Larval development of Onchocamallanus bagarii (Nematoda: Camallanidae) in copepods

Nimai C. De, Rabindra N. Maity

Folia Parasitologica 46[1] 53-58 (1999)

Larval development of the nematode Onchocamallanus bagarii (Karve et Naik, 1951), recovered from the intestine of the fish Bagarius bagarius (Hamilton) was studied under laboratory conditions. The cyclopoid copepods Mesocyclops leuckarti (Claus) and M. crassus (Fischer) were infected with first-stage larvae from female uteri and maintained at temperatures 29-30°C. After being swallowed by the copepods, first-stage larvae burrow through the intestinal wall and reach the haemocoel of the copepods and there they grow and moult twice to attain the third and infective-stage. First-stage larvae become ensheathed after 65 hours...

Zeman P.: Borrelia-infection rates in tick and insect vectors accompanying human risk of acquiring Lyme borreliosis in a highly endemic region in Central Europe.

ERRATUM

Folia Parasitologica 46[1] 58 (1999)

ERRATUM Zeman P.: Borrelia-infection rates in tick and insect vectors accompanying human risk of acquiring Lyme borreliosis in a highly endemic region in Central Europe. Folia Parasitol. 45: 319-325, 1998. It is regretted that an error appeared on page 321 of the above article. The captions for the figures placed above right and below left, respectively, are incorrect and should read exchanged for one another.

Rhabdias agkistrodonis (Nematoda: Rhabdiasidae): morphology, distribution and specificity

Yuriy I. Kuzmin

Folia Parasitologica 46[1] 59-66 (1999)

Morphology of adult parasitic hermaphrodites, free-living males and females, rhabditoid and infective larvae of Rhabdias agkistrodonis Sharpilo, 1976 is described. Adult parasites of the species differ from corresponding stage of other Rhabdias species from snakes in the presence of short cuticular needle on the tip of the tail. Free-living generation stages of R. agkistrodonis have typical rhabditoid morphology. Homogonic infective larvae differ from heterogonic ones in the shape of stoma and oesophagus. Three new hosts: Halys viper (Agkistrodon halys) (Pallas) from Altaiskii Krai (Russia), Okinawa habu (Trimeresurus...

On the morphological variability of the attachment organ of Lernaeopodidae (Copepoda: Siphonostomatoida)

Ouafae Benkirane, Françoise Coste, André Raibaut

Folia Parasitologica 46[1] 67-75 (1999)

The study of the bulla from 18 lernaeopodid copepod species collected on 15 marine fish species and one freshwater fish species taken mainly from the Gulf of Lions in the Mediterranean Sea reveals a great morphological and structural variability. It is however possible to bring forth three general remarks: - the bulla of Lernaeopodidae parasites of Selachii have a remarkably constant structure probably due to the tegument nature of the attachment substratum; - the bulla of Lernaeopodidae parasites of Teleostei has a morphology influenced by the nature of the attachment tissue; - when species of a same genus (i.e. Clavellotis) are attached on...

Heat shock proteins HSP70 and HSP60 in Echinococcus granulosus protoscolices

Javier Martínez, Jorge Pérez-Serrano, Guillermo Bodega, Nieves Casado, Filomena Rodríguez- Caabeiro

Folia Parasitologica 46[1] 76-78 (1999)

Branchiurdis (Argulus) as intermediate hosts of the daniconematid nematode Mexiconema cichlasomae

Frantiąek Moravec, Victor Vidal-Martínez, Leopoldina Aguirre-Macedo

Folia Parasitologica 46[1] 79 (1999)