Folia Parasitologica, vol. 36 (1989), issue 3

Trichodinids (Ciliata: Urceolariidae) from gills of some marine fishes with the description of Trichodina zaikai sp. n.

G Grupcheva, J Lom, I Dyková

Folia Parasitologica 36[3] 193 (1989)

Trichodina zaikai sp. n. is described from the gills of Crenilabrus ocellatus, C. griseus and Hippocampus hippocampus microcoronatus from the Black Sea, and from C. griseus from the Mediterranean. Seven species of trichodinids, Trichodina jadranica Haider, T. lepsii Lom, T. ovonucleata Raabe, T. partidisci Lom, T. rectuncinata Raabe, Trichodina sp. 1 and Paratrichodina obliqua Lom are reported for the first time from the gills of fishes from the Bulgarian Black Sea coast. Three species, T. ovonucleata, T. rectuncinata and Trichodina sp. 2 are reported from the French Mediterranean coast. All species are characterized by photomicrographs and morphometric...

A second finding of Linognathoides laeviusculus (Grube) (Anoplura) in Rumania.

P Volf, V Cerný

Folia Parasitologica 36[3] 208 (1989)

The pathogenicity of Cryptosporidium parvum Tyzzer, 1912 and C. Baileyi Current, Upton et Haynes, 1986 for chickens.

L Palkovic, V Marousek

Folia Parasitologica 36[3] 209 (1989)

Clinical symptoms and pathological-morphological changes in the respiratory tract of chickens inoculated with Cryptosporidium parvum were described for the first time and compared with those induced by Cryptosporidium baileyi. Intratracheal inoculation with these two species caused symptoms of a respiratory tract disease in all chicken, but a disease of the digestive tract or death did not occur in any case. Pathological and morphological changes were observed only in the respiratory system and were characterized by petechiae in the mucous of larynx, trachea, primary bronchi and in the wall of air sacs in chickens infected with C. parvum, or by diffuse...

An unusual localization of developmental stages of Cryptosporidium parvum Tyzzer, 1912 in the cells of small intestine of a gnotobiotic piglet.

B Koudela, J Vítovec, J Sterba, P Milácek

Folia Parasitologica 36[3] 219 (1989)

In a gnotobiotic piglet infected with 50.10(6) oocysts of Cryptosporidium parvum, developmental stages of the parasite were found in the duodenum, anterior jejunum and middle jejunum on the first day post infection (1 DPI). During the studies of the ultrastructure, trophozoites and meronts of C. parvum were encountered in the microvillous zone of enterocytes, and the outer membrane of parasites was a continuation of the membrane of microvilli. Unusual was the attachment of C. parvum trophozoite on the opening of a goblet cell, as well as a meront localized in the cytoplasm in the enterocyte of anterior jejunum. These findings show that C. parvum is...

Metabolic differentiation of bloodstream forms of Trypanosoma brucei brucei into procyclic forms. Effect of hydroxyurea, arabinosyl adenine, and serum omission.

A Markos, A Blahůsková, M Kalous, E Bysková, K Byska, E Nohýnková

Folia Parasitologica 36[3] 225-238 (1989)

Bloodforms of Trypanosoma brucei brucei STIB 247 taken from rats and containing more than 80 per cent short stumpy forms, differentiated in vitro to procyclic forms in medium SDM 79 (Brun and Schönenberger 1979), enriched with 3 cis-aconitate. Cell division was abolished by the addition of hydroxyurea (200 or arabinosyl adenine (20 to the cultivation medium, or by the omission of serum from the medium. The ultrastructure of exponentially growing controls was rearranged within 24 h. The endogenous respiration and the respiration stimulated by proline, succinate, and 2-oxoglutarate were detectable within 12...

Ultrastructure of the tail of Echinostoma revolutum cercaria.

Z Zdárská, V Nasincová, J Valkounová

Folia Parasitologica 36[3] 239 (1989)

The ultrastructure of the tail fins and muscles of Echinostoma revolutum cercaria is described. The longitudinal muscles consist of a primitive type of transversely striated muscle fibres with a well-developed sarcoplasmic reticulum in the Z-band. The fins are formed by a longitudinal tegument fold containing the same components as the remaining part of the tail tegument. The difference between the body and tail tegument is discussed.

Some trematodes of freshwater fishes from North Vietnam with a list of recorded endohelminths by fish hosts.

F Moravec, O Sey

Folia Parasitologica 36[3] 243-262 (1989)

The present paper comprises a systematic survey of trematodes collected from 12 species of freshwater fishes from North Vietnam (the Red River near Hanoi). Altogether 16 trematode species (14 adults and 2 juvenile forms) have been recorded. These include: Amurotrema dombrowskajae, Platycladorchis microacetabularis, P. macroacetabularis, Neocladorchis multilobularis, Carassotrema koreanum, Azygia hwangtsiyui, Phyllodistomum clariasi, Phyllodistomum sp., Orientocreadium batrachoides, Masenia collata, Bucephalopsis ozakii, Dollfustrema bagarii sp. n., Prosorhynchus vietnamensis sp. n., Prosorhynchus sp. juv., Metadena bagarii sp. n., and Isoparorchis...

Systematic status of Philometra acipenseris (Del Lupo, 1898) (Nematoda).

F Moravec

Folia Parasitologica 36[3] 264 (1989)

Chaetotaxy of cercariae of Opisthioglyphe ranae (Frölich, 1791) (Trematoda: Plagiorchidae).

V Dimitrov, J Busta, I Kanev

Folia Parasitologica 36[3] 265-274 (1989)

A detailed observation of the sensory apparatus of Opisthioglyphe ranae (Frölich, 1791) cercariae was carried out. The species was determined on the basis of an experimental study of the life cycle and morphology of sporocysts, cercariae, metacercariae, and adults. In contrast to other species of the family Plagiorchidae, no papillae were present in the positions CId1, CId2, CII0, CII3 and CII4. Papillae with markedly ventral situation on the postacetabular zone were found very rarely. Some of the cercariae possessed ventral papillae variously distributed in the preacetabular zone. A comparative analysis of the chaetotaxy revealed that the cercaria...



Folia Parasitologica 36[3] 275 (1989)

Population variability of some quantitative characters in Argas polonicus larvae (Acarina: Argasidae).

F Dusbábek

Folia Parasitologica 36[3] 281-287 (1989)

The nature of variability of quantitative morphometrical characters was studied in larvae of two local populations of Argas (Argas) polonicus Siuda, Hoogstraal, Clifford et Wassef, 1979 collected in Czechoslovakia and Poland. Statistically significant differences in five quantitative characters studied, in which the larvae of both wild populations differed from one another, disappeared during three generations of laboratory rearing. The variability of these characters was lower in laboratory populations than in field collected ticks. The results of hybridization experiments and analysis of variability of larvae of individual populations and parental...

Occurrence and localization of Cryptosporidium sp. in spontaneously infected pheasants (Phasianus colchicus L.).

I Pavlásek, B Kozakiewicz

Folia Parasitologica 36[3] 287-288 (1989)