Folia Parasitologica, vol. 31 (1984), issue 1

HISTORY OF THE FORMATION OF PARASITE FAUNA OF FISH IN WATER RESERVOIRS IN THE EUROPEAN CIRCLE OF THE ARCTIC OCEAN PROVINCE

E A RUMYANTSEV

Folia Parasitologica 31[1] 5-10 (1984)

HETERORHABDITIS-HELIOTHIDIS, A PARASITE OF INSECT PESTS IN CUBA

E M Arteaga HERNANDEZ, Z MRACEK, Z

Folia Parasitologica 31[1] 11 (1984)

Histochemical differentiation of four species of the genus Trichinella from days 10-40 of their development in muscles of experimentally infected mice.

D Hulínská, B Shaikenov, M Grim

Folia Parasitologica 31[1] 19 (1984)

Differences in an infection of the muscle caused by larval T. pseudospiralis (from days 10-40 p.i.) and that caused by capsule-forming Trichinella larvae were disclosed with histochemical techniques. These were: An intense reaction of the modified sarcoplasm for neutral mucosubstances, and intense staining of spherical centres of re-differentiation in the sarcoplasm for tyrosine, activity of the acid phosphatase, a negative reaction for SS groups of proteins at the site of location of the parasite owing to the absence of a collagen-like substance deposited by capsule-forming Trichinella species. Alkaline phosphatase activity weak in a sarcoplasm infected...

CONTRIBUTION TO THE KNOWLEDGE OF UROCLEIDOIDES VARIABILIS (MONOGENEA, ANCYROCEPHALIDAE)

R ERGENS, A PROUZA

Folia Parasitologica 31[1] 28 (1984)

HISTOCHEMICAL AND MORPHOLOGICAL-STUDIES ON THE METACERCARIA AND SPOROCYST SACS OF LEUCOCHLORIDIUM-PERTURBATUM

Z ZDARSKA, T N OBOLEVA, L L OSIPOVSKAYA

Folia Parasitologica 31[1] 29 (1984)

Some aspects of histochemical studies on the parasite and tissue reaction in bovine cysticercosis.

J Schramlová, K Blazek

Folia Parasitologica 31[1] 37 (1984)

Histochemical studies on the cysticercus and surrounding tissue reaction were performed at various intervals after experimental infection. It was found that acid mucosubstances and proteins with SH- and SS-groups appeared first in the granulation tissue around the cysticercus (on about day 14 p.i.) and only later (on day 28 p.i.) in the tegument of the cysticercus where they were localized in the rim of microtriches. This envelope consisting of mucosubstances and proteins seems to be identical with the electron-dense substance found on the surface of developing cysticercus during electron-microscopical studies. It is considered to be a mimicry enabling...

Demodex foveolator sp. n. (Acari: Demodicidae), a new epidermis-dwelling parasite of Crocidura suaveolens (Pallas, 1821).

V Bukva

Folia Parasitologica 31[1] 45-52 (1984)

A new species, Demodex foveolator, is described in all stages of the life cycle from the lesser white-toothed shrew, Crocidura suaveolens (Pallas, 1821). The species inhabits epidermal pits and apparently is a low-grade pathogen. A suggested trait of structural adaptations of epithelia-dwelling demodicids to their habitats is briefly discussed.

Studies on ticks of veterinary importance in Nigeria. VIII. Differences observed in the biology of ticks which fed on different domestic animal hosts.

O O Dipeolu, C A Adeyefa

Folia Parasitologica 31[1] 53-61 (1984)

Ticks of the species Amblyomma variegatum (Fabr.), Boophilus decoloratus (Koch), Boophilus geigyi Aeschl. et Morel, and Hyalomma rufipes Koch were detached from cattle, sheep and horses and the influence of these various hosts on the biology of ticks was investigated. No A. variegatum was found in horses. The parameters studied were preoviposition and oviposition periods, ovipositional capacity, eclosion period, hatching patterns, egg sizes and temperature effect. Although the preoviposition and eclosion periods were similar in each tick species irrespective of the host from which the adults were detached, the oviposition period was longest among ticks...

Effects of host-immunity on the life cycle of Hyalomma rufipes Koch, 1844 (Ixodoidea: Ixodidae).

M H Rahman

Folia Parasitologica 31[1] 63-67 (1984)

Studies of the effects of host-immunity on the life cycle of Hyalomma rufipes were carried out by allowing the ticks to feed on New Zealand white rabbits under laboratory conditions. The immunity of the rabbit host significantly affected the life cycle of this tick, reducing the percentage recovery of engorged females, their engorged weights and the total number of eggs laid by these females. The viability of the eggs laid by them was also considerably reduced compared to the eggs laid by females fed on naive rabbit hosts. The effects of host immunity were also revealed in the tendency towards three-host development of this species, which otherwise...

ABNORMAL INFESTATION OF THE COMMON VOLE (MICROTUS-ARVALIS) WITH IXODES RICINUS NYMPHS

J LYSY, J NOSEK, O KOZUCH

Folia Parasitologica 31[1] 68 (1984)

The flea fauna of the tick-borne encephalitis focal region in the eastern part of the Russian Plain.

N F Darskaya, L G Suvorova

Folia Parasitologica 31[1] 69-77 (1984)

The paper presents a survey of flea species found in the studied territory, together with data on their distribution, host relationship, seasonal fluctuations of their numbers and possible role in tick-borne encephalitis epizootiology.

Experimental infection of sheep with Bhanja virus.

V Mádr, Z Hubálek, D Zendulková

Folia Parasitologica 31[1] 79-84 (1984)

Seven juvenile sheep were infected subcutaneously (s.c.) or intracerebrally (i.c.) with Bhanja virus. Distinct symptoms of CNS affection (ataxia, pareses) were observed only in the case of i.c. application of a massive dose (10(-7) to 10(9) SMicLD50) of the Bg 336/336 strain. A short-term and low viremia (one to four days p.i.) was ascertained after i.c. infection with a dose of 10(4.7) to 10(9.2) SMicLD50 of the same strain. On the other hand, the high titres of neutralization antibodies were detected even after inoculation of small doses of the virus (e.g. 50 SMicLD50). Unlike the symptomatic response, the immune response of sheep to Bhanja virus is high.

EFFECTIVENESS OF CYSTICERCOSIS TREATMENT BY INJECTION OF QUININE SULFATE INSITU

N H Anh

Folia Parasitologica 31[1] 84 (1984)

Muscle Sarcocystosis in pheasants and first records of the genus Sarcocystis in Phasianus colchicus Linné, 1758 in Czechoslovakia.

Z Cerná, Z Pecka

Folia Parasitologica 31[1] 85-88 (1984)

During examination of 41 pheasants from the vicinity of Jindrichův Hradec (South Bohemia) muscle sarcocystosis was found in 15 birds (i.e., in 36.5%). There were two types of sarcosporidia. Type I was recorded in 3 pheasants and possessed small cystozoites measuring 6 x 2 micrometers. There occurred also stages measuring 3-4 x 2 micrometers corresponding in their morphology to merozoites of the pre-cystic phase of reproduction. Type II was found in 12 birds and possessed large, lancet-shaped cystozoites measuring 16 x 2-3 micrometers. Type II conforms to the description of Sarcocystis sp. by Wenzel et al. (1982), whereas type I seems to represent a...

NOTES TO THE SPECIES GYRODACTYLUS-KOBAYASHII HUKUDA, 1940 (GYRODACTYLIDAE, MONOGENEA)

R ERGENS

Folia Parasitologica 31[1] 88 (1984)

Hepatic superoxide dismutase activity in the mouse infected with Plasmodium berghei.

A B Kulkarni, D M Renapurkar, K D Sharma

Folia Parasitologica 31[1] 89-91 (1984)

The effects of malarial infection, induced by infecting the mouse with Plasmodium berghei (30-40% parasitemia), on hepatic superoxide dismutase (SODs) were studied. Total SOD and Cu-Zn SOD activities were found to be significantly reduced. Mn SOD activity, however, was not found to be altered.

An IFAT cercarial slide antigen preparation for schistosomiasis.

M E Azab, E H Safer, F M Ghaffar

Folia Parasitologica 31[1] 93-96 (1984)

A modified technique for the preparation of a cercarial microscopic slide antigen for use in IFAT, that could be stored at -20 degrees C for 6 months is described. Cercariae were deposited by cooling, fixed in 0.5% buffered formaline, mixed with 7% egg albumin, dropped on slides and dried. Before use, antigen was post-fixed in absolute methyl alcohol. Evans blue was used as a counterstain. The antigen was evaluated with known human positive and negative sera, also with sera from normal individuals and others residing in endemic areas and exposed to infections with schistosomiasis; as well as with sera of patients with other helminthic infections (strongyloidiasis,...