Folia Parasitologica - Most viewed articles

Preptetos and Neopreptetos (Digenea: Lepocreadiidae) from Australian marine fishes

Rodney A. Bray and Thomas H. Cribb

Folia Parasitologica 43[3] 209-226 (1996)  

Guyanema longispiculum sp. n. (Nematoda: Dracunculoidea) from Loricariichthys brunneus (Pisces) in Venezuela

František Moravec, Antonín Prouza and Ramiro Royero

Folia Parasitologica 43[3] 227-231 (1996)  

Development of a myxozoan parasite Tetracapsula bryozoides gen. n. et sp. n. in Cristatella mucedo (Bryozoa: Phylactolaemata)

Elizabeth U. Canning, Beth Okamura and Alan Curry

Folia Parasitologica 43[4] 249-261 (1996)  

Co-occurrence and microhabitat of Ancyrocephalus mogurndae (Monogenea) on gills of the mandarin fish, Siniperca chuatsi

Pin Nie

Folia Parasitologica 43[4] 272-276 (1996)  

Spermatozoon and spermiogenesis in Mesocoelium monas (Platyhelminthes: Digenea): Ultrastructure and epifluorescence microscopy of labelling of tubulin and nucleus

Iomini C, Mollaret I, Albaret JL, Justine JL

Folia Parasitologica 44[1] 26-32 (1997)  

Spermiogenesis and the spermatozoon were studied in the digenean Mesocoelium monas Rudolphi, 1819 (from the toad Bufo sp. in Gabon). An ultrastructural study revealed that spermiogenesis follows the usual pattern found in digeneans, i.e. proximo-distal fusion of axonemes with a median cytoplasmic process followed by elongation. The spermatozoon has two fully incorporated axonemes with the 9 + ''1'' trepaxonematan pattern. Indirect immunofluorescence localization of tubulin and fluorescent labelling of the nucleus were used to obtain additional information on the structure of the spermatozoon. It was thus shown that one of the axonemes is slightly shorter...

Two hemocyte populations in Triatoma infestans: Ultrastructural and lectin-binding characterization

Hypsa V, Grubhoffer L

Folia Parasitologica 44[1] 62-70 (1997)  

Two distinct hemocyte populations are determined in the hemolymph of the triatomine bug Triatoma infestans Klug, oenocytoids and plasmatocytes, and their independent origin from separate stem cells is shown. Both hemocyte populations differ considerably in their morphology, ultrastructure and lectin-binding properties. While oenocytoids are quite uniform with easily definable cells which do not to bind any assayed lectin, the plasmatocytes are a very polymorphic population possessing several morphological types and displaying a positive reactivity with lectins.

Ultrastructure of three types of scolex gland cells in adult Bothriocephalus claviceps (Cestoda: Pseudophyllidea)

Zdarska Z, Nebesarova J

Folia Parasitologica 44[2] 139-146 (1997)  

The ultrastructure of three types of unicellular scolex gland cells in adult cestode Bothriocephalus claviceps (Goeze, 1782) is described. The first type - apocrine gland cells transport their secretion (small rounded electron dense granules) via thin ducts into the tegument where it accumulates as projections on the body surface. The second type - eccrine gland cells press out their secretion (large oval electron dense granules) through ducts which open to the exterior surface of the tegument. The third type - microapocrine gland cells transport their secretion (large rounded electron dense granules) through thin cytoplasmic processes into the distal...

Lectins in snail-trematode immune interactions: a review

Horak P, vanderKnaap WPW

Folia Parasitologica 44[3] 161-172 (1997)  

Lectins as carbohydrate recognition proteins other than enzymes or immunoglobulins play important roles in living systems, e.g., in cell-cell recognition. They are considered to be involved in snail trematode immune interactions, i.e., in a system where antibodies are lacking and lectins might at least partially substitute immunoglobulin functions. From the snail side, lectins can be located on haemocyte surfaces as receptors for foreignness and they can be found freely in plasma. The latter can function as agglutinins/opsonins helping in the recognition of parasites by haemocytes. They may also link immune cells and pathogens by recognition of surface...

New observations on seuratoid nematodes parasitic in fishes of the Parana River, Brasil

Moravec F, Kohn A, Fernandes BMM

Folia Parasitologica 44[3] 209-223 (1997)  

The present paper comprises a systematic survey of nematodes of the superfamily Seuratoidea collected from fishes of the Parana River, southern Brazil, in 1992-1995. The following species were recorded: Neoparaseuratum travassosi Moravec, Kohn et Fernandes, 1992, Spectatus sp., Seuratoidea gen. sp. larvae, Cucullanus brevispiculus Moravec, Kohn et Fernandes, 1993, C. pinnai pinnai Travassos, Artigas et Pereira, 1928, C. pinnai pterodorasi subsp, n., C. rhamphichthydis sp. n., C. zungaro Vaz et Pereira, 1934, and Dichelyne pimelodi sp. n. C. pinnai pterodorasi (type host Pterodoras granulosus) differs from C. p. pinnai in the shape of the oesophagus...

Acanthocephalans of the family Centrorhynchidae (Palaeacanthocephala) from Bulgaria

Dimitrova ZM, Georgiev BB, Genov T

Folia Parasitologica 44[3] 224-232 (1997)  

Five species of acanthocephalans of the family Centrorhynchidae are recorded from birds in Bulgaria: Centrohynchus amphibius Das, 1950 from Buteo, buteo (L.) (new host record), C. globocaudatus (Zeder, 1800) Luhe, 1911 from Falco tinnunculus L. and F. vespertinus L. (new host record), Sphaerirostris picae (Rudolphi, 1819) Golvan. 1960 from Pica pica (L.) and Lanius excubitor L. (new host record), S. lancea (Westrumb, 1821) Golvan. 1960 from Vanellus vanellus (L.), and S. turdi (Yamaguti, 1939) Golvan, 1960 from Turdus merula L., Cinclus cinclus (L.) (new host record)and Sturnus vulgaris L. (new host record). New geographical record far Europe is this...

Occurrence of cystacanths of Polyacanthorhynchus kenyensis larvae (Acanthocephala) in four teleostean fishes from a tropical lake, Lake Naivasha, Kenya

Aloo PA, Dezfuli BS

Folia Parasitologica 44[3] 233-238 (1997)  

From January 1992 to December 1993, a total of 2158 fish, namely Oreochromis leucostictus (Trewavas, 1983), Micropterus salmoides (Lacepede, 1802), Tilapia zillii (Gervais, 1848) and Barbus amphigrama (Boulenger, 1902) were sampled from thirteen stations on Lake Naivasha, Kenya, using a fleet of gill nets and examined for helminth parasites. The prevalence of infection due to cystacanths of an acanthocephalan, Polyacanthorhynchus kenyensis Schmidt et Canaris, 1967 among parasitized O. leucostictus ranged from 30.4 to 86.9%; among T. zillii from 4.1 to 77.7%; in M, salmoides from 20 to 50%; and in B, amphigrama from 5.8 to 100%. In 735 hosts belonging...

Notopronocephalus peekayi gen. et sp. n. (Digenea: Pronocephalidae) from Australian freshwater turtles

Cribb TH, Pichelin SP

Folia Parasitologica 44[4] 279-282 (1997)  

Notopronocephalus peekayi gen, et sp, n. is described from the intestine of Elseya latisternum Gray, 1867, E. dentata (Gray, 1863) and Emydura signata Ahl, 1932 from rivers in Queensland. The new genus is distinguished by the absence of ventral glands, simple (neither diverticulate nor sinuous) caeca terminating at the anterior margin of the testes, excretory arms not uniting in forebody, single ovary, two opposite testes close to the posterior end of the body, intracaecal genital pore, vitelline follicles anterior to the testes, cirrus-sac orientated obliquely and not divided into two portions, and the uterus intracaecal. This is the first pronocephalid...

Redescription of the type-species of the cestode genus Deltokeras (Cyclophyllidea : Paruterinoidea)

Georgiev BB, Genov T

Folia Parasitologica 45[1] 44-46 (1998)  

The syntypes of Deltokeras ornitheios Meggitt, 1927 (the type-species of Deltokeras Meggitt, 1927), a parasite of Urocissa erythrorhyncha (Passeriformes, Corvidae) in South Asia, are redescribed. Deltokeras is considered a monotypic genus. An amended generic diagnosis is presented.

Subclasses of IgG in different aged rats with fasciolosis

Paz A, Sanchez-Andrade R, Diez-Banos P, Panadero R, Morrondo P

Folia Parasitologica 45[1] 53-56 (1998)  

The variations in antibody responses (total IgG and IgG1, IgG2a, IgG2b, and IgG2c subclasses) were studied in two groups of rats infected with metacercariae of the trematode Fasciola hepatica L. Animals of group 1 were 4 weeks old, and rats of group 2 were 13 weeks old. All IgG subclasses increased during the course of infection except IgG2c, which decreased. The younger rats reached more marked responses than the older, at least during the period of this trial. IgG1 and IgG2a antibodies reached the highest levels, and among these two, IgG2a response was slightly superior to IgG1.

Lucionema balatonense gen. et sp. n., a new nematode of a new family Lucionematidae fam. n. (Dracunculoidea) from the swimbladder of the European pikeperch, Stizostedion lucioperca (Pisces)

Moravec F, Molnar K, Szekely C

Folia Parasitologica 45[1] 57-61 (1998)  

A new nematode genus and species, Lucionema balatonense gen. et sp. n., is described from the swimbladder of the European pikeperch, Stizostedion lucioperca (L.), from Lake Balaton in Hungary; a new dracunculoid family Lucionematidae fam. n. is established to accommodate it. The hitherto monotypic family Lucionematidae shows affinities with the families Skrjabillanidae and Daniconematidae, differing from them mainly in having simple oesophagus without external oesophageal glands and the vulva situated near the middle of body; from the first family also in the absence of the buccal capsule and the bursa-like caudal alae in the male. The genus Lucionema...

The epidemiology of cryptosporidiosis: application of experimental sub-typing and antibody detection systems to the investigation of water-borne outbreaks

James McLauchlin, David P. Casemore, Sheila Moran, Sushma Patel

Folia Parasitologica 45[2] 83-92 (1998)  

A technique based on the analysis of banding patterns obtained by SDS-PAGE Western-blotting of an oocyst wall antigen obtained from faeces has been evaluated to subtype Cryptosporidium parvum Tyzzer, 1912. This technique appears to have sufficient stability to recognise multiple types of this parasite. A similar Western-blotting technique has also been used to assess antibody responses to cryptosporidial antigens in human sera. Two systems were developed: one against three antigens of apparent molecular weights 6, 14 and 17 kDa; the second against oocyst wall antigens of apparent molecular weights 57, 69, 75, 89, 128, 151 and 173 kDa. Antibodies to...

Viability of Cryptosporidium parvum oocysts in natural waters

Brasseur P, Uguen C, Moreno-Sabater A, Favennec L, Ballet JJ

Folia Parasitologica 45[2] 113-116 (1998)  

Water-borne transmission of the coccidium Cryptosporidium parvum Tyzzer, 1912 is frequently responsible for outbreaks of human cryptosporidiosis. One of the most important was reported in 1993 in Milwaukee in the United States, where 403,000 cases were recorded. The determination of the percentage of oocysts excystated is the first step in evaluating their viability, but it alone is not sufficient. This percentage depended on the conditions of storage and also the presence of oxidant or disinfectent agents in water. The percentage of excystation is not always related to viability. Therefore, determination of the viability of excysted sporozoites by...

A Trachipleistophora-like microsporidium of man: its dimorphic nature and relationship to Thelohania apodemi

Jiří Vávra, Anthony T. Yachnis, Elizabeth U. Canning, Alan Curry, John A. Shadduck, Jan M. Orenstein

Folia Parasitologica 45[2] 157-162 (1998)  

The structure of the human microsporidium found by Yachnis and colleagues in two AIDS patients (Am. J. Clin. Pathol. 106: 535-43, 1996) (hereafter referred to as HMY) was investigated by light and transmission electron microscopy and compared with Thelohania apodemi Doby, Jeannes et Raoult, 1963, a microsporidian of small rodents. The fine structure of the HMY was found to be similar to that of Trachipleistophora hominis Hollister, Canning, Weidner, Field, Kench et Marriott, 1996. Characteristic is the presence of a thick layer of electron dense material on the outer face of the meront plasmalemma, which is maintained during the whole life cycle and...

Observations on the seasonal occurrence of two species of transversotrematid Digenea parasitising the sparid fish Acanthopagrus australis in Moreton Bay, eastern Australia

Frank R. Roubal

Folia Parasitologica 45[3] 205-210 (1998)  

Ectoparasitic Prototransversotrema steeri Angel infected Acanthopagrus australis (Günther) in western (W. Bay) and southern (S. Bay) Moreton Bay with greatest abundance in winter (June - August), and none in summer (December - February). This confirms previous observations on seasonality of P. steeri from a small estuary in New South Wales. Transversotrema licinum Manter, which is a new host and geographical record, infects A. australis in W. Bay but not S. Bay, with large abundances in summer and winter, lowest abundance in spring. Increased size of P. steeri in winter in S. Bay could be explained by increased size of fish sampled since fish length...

Sphingomyelin synthesis in helminths: a minireview

Ilia Bankov, Anna Timanova, John Barrett

Folia Parasitologica 45[4] 257-260 (1998)  

Sphingolipids are a diverse and ubiquitous group of lipids. They are widely distributed in parasites and a number of novel forms have been described. Sphingolipid synthesis has been investigated in the malarial parasite, cestodes, digeneans and nematodes. Although there are differences in detail, the synthetic pathways involved are similar to those found in mammals.

Helminth parasites of the rare endemic catfish, Liobagrus reini, in Japan

Moravec, Nagasawa: Helminthsof Liobagrus František Moravec, Kazuya Nagasawa

Folia Parasitologica 45[4] 283-294 (1998)  

Examinations of 29 specimens of the catfish Liobagrus reini Hilgendorf (Siluriformes: Amblycipitidae), a species endemic to Japan, collected from the Sho River, Toyama Prefecture, in central Honshu, revealed the presence of four species of helminth parasites: Plagioporus honshuensis sp. n. (Trematoda), Rhabdochona coronacauda Belouss, 1965, R. japonica Moravec, 1975 and Mexiconema liobagri sp. n. (all Nematoda). The new opecoelid trematode P. honshuensis is characterized mainly by the extent of vitelline follicles, the size ratio of the suckers (1 : 1.7-2.1), the situation of testes near the middle of the body and by the structure, size and shape of...

Nybelinia queenslandensis sp. n. (Cestoda: Trypanorhyncha) parasitic in Carcharhinus melanopterus, from Australia, with observations on the fine structure of the scolex including the rhyncheal system

Malcolm K. Jones, Ian Beveridge

Folia Parasitologica 45[4] 295-311 (1998)  

A new species of Nybelinia Poche, 1926, N. queenslandensis sp. n. (Cestoda: Trypanorhyncha) is described from sharks, Carcharhinus melanopterus (Quoy et Gaimard, 1824) from the coast of northeastern Queensland, Australia. Morphological features of the 46 known species of Nybelinia Poche, 1926 are tabulated and the new species is differentiated from all known taxa that are adequately described on the basis of having a homeomorphous armature, metabasal hooks 20-25 µm long, tentacles 0.07-0.09 mm in diameter, short bulbs (0.38-0.45 mm) and craspedote segments with the testes encircling the female genital complex. The fine structure of the scolex...

Echinococcus multilocularis (Cestoda: Taeniidae) in the Czech Republic: The first detection of metacestodes in a naturally infected rodent

Karel Martínek, Libuše Kolářová, Jaroslav Červený, Michal Andreas

Folia Parasitologica 45[4] 332-333 (1998)  

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...

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)  

Encystment sites of matacercariae of Hypoderaeum conoideum (Trematoda: Echinostomatidae) in freshwater gastropods

Rafael Toledo, Carla Muñoz-Antolí, Mercedes Pérez, José-Guillermo Esteban

Folia Parasitologica 46[2] 157-158 (1999)  

Description of a new flagellate protist Desmomonas prorhynchi gen. et sp. n. associated with problematical cell masses, parasitic in the turbellarian Prorhynchus sp. (Lecithoepitheliata)

Joan B. Williams

Folia Parasitologica 46[4] 248-256 (1999)  

The fine structure is described of a new nonphotosynthetic flagellate, named Desmomonas prorhynchi gen. et sp. n., endoparasitic in the lecithoepitheliate turbellarian Prorhynchus sp. The flagellates surround cell masses enveloped by a protective wall, to which adhere many small, regularly arranged cylindroid bodies; these structures are reminiscent of epicuticular projections characterising the body walls of some oligochaetes and polychaetes. The cells of a cell mass are joined to the enveloping wall by spot hemidesmosomes. Their cytoplasm contains Golgi systems, mitochondria, fibrillar dense bodies, paired centrioles, and rod-shaped...

Hypoechinorhynchus robustus sp. n. from Notolabrus parilus (Labridae) from Western Australia with a discussion on the validity of the Hypoechinorhynchidae (Acanthocephala: Palaeacanthocephala)

Sylvie Pichelin

Folia Parasitologica 46[4] 311-315 (1999)  

Hypoechinorhynchus robustus sp. n. is described from Notolabrus parilus (Richardson) (Labridae) from Pt Peron, Western Australia. It has a proboscis with 30 hooks arranged in ten longitudinal rows: 5 rows of a small apical spine, a large anterior hook and a small posterior spine, 5 rows of a large anterior hook, a middle spine and a posterior spine. The new species is distinguished from other species of the genus by having a set of 5 small apical spines anterior to the large hooks on the proboscis, by having lemnisci that barely extend beyond the proboscis receptacle and testes which are more adjacent than tandem. H. robustus also...

Editorial

Jiří Lom, Vladimír Bukva

Folia Parasitologica 49[1] 1 (2002) | DOI: 10.14411/fp.2002.001