Abstract:
:A part of the life cycle of Proteocephalus neglectus La Rue, 1911, a parasite of trout, starting from release of eggs from mature parasites into water, to the early phase of development in the definitive host, was studied under experimental conditions. Special regard has been paid to development in the intermediate host, copepod Cyclops strenuus. Some oncospheres in eggs kept in water at 5 and 10 degrees C remained infective for 20-25 days. The percentage of infected copepods depended on the length of their contact with parasite eggs. Cestode larvae (cercoscoleces) were formed in the intermediate host on days 8-10 p.i. at the temperatures of 21-22 degrees C, on days 18-21 at 15 degrees C, on days 24-28 at 10 degrees C, and on days 59-65 at 6 degrees C. Most larvae, including infective cercoscoleces, were localized in the cephalothorax of the intermediate host, particularly in its first segment. This localization did not change during their development. The infectivity of cercoscoleces was verified by experimental infection of Salmo gairdneri fry. The development of the cestode in this definitive host was observed for 17 days after infection at 10 degrees C. The finding of P. neglectus cereoscoleces in fish of the families Cottidae and Cyprinidae on day 2 after experimental infection indicates that these larvae can survive for a short time in atypical fish hosts.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
Scholz Tsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
39-55issue
1eissn
0015-5683issn
1803-6465journal_volume
38pub_type
杂志文章abstract::The effects of condensed tannins (CTs) extracted from five species of plants on egg hatching and larval development of Teladorsagia circumcincta (Stadelmann, 1894) (syn. Ostertagia circumcincta) were evaluated using in vitro bioassays. The extracts of CTs were obtained from Lotus pedunculatus (LP), Lotus corniculatus ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2010.008
更新日期:2010-03-01 00:00:00
abstract::The Capsalidae are monogeneans parasitizing 'skin', fins and gills of marine fishes. Some capsalids are pathogenic to cultivated fish and a few have caused epizootic events. It is a cosmopolitan family with broad host associations (elasmobranchs and teleosts, including sturgeons). Approximately 200 capsalid species ar...
journal_title:Folia parasitologica
pub_type: 杂志文章,评审
doi:10.14411/fp.2004.016
更新日期:2004-06-01 00:00:00
abstract::Faecal samples from 162 wild animals were collected from 32 distinct sites of Łęczyńsko-Włodawskie Lakeland (eastern Poland). The presence of Giardia duodenalis (Stiles, 1902) was assessed by a Direct Fluorescence Assay (DFA) and by Polymerase Chain Reaction (PCR) and sequencing of a fragment of the beta-giardin gene....
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2015.042
更新日期:2015-07-30 00:00:00
abstract::Ixodid ticks remain attached to their hosts for several days to weeks. During this extended feeding process new proteins involved in the modulation of host immune responses are expressed in tick salivary glands. In our study a stimulatory or inhibitory effect of salivary gland extracts (SGE) of unfed and partially fed...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2003-12-01 00:00:00
abstract::Bloodforms of Trypanosoma brucei brucei (STIB 247) differentiated in vitro into procyclic forms as described in the accompanying paper (Markos et al. 1989). The importance of the respiratory chain for the process was tested by the inhibition of its development (omission of hemin from the medium) or function (respirato...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::Toxoplasmosis is a potentially fatal complication after hematopoietic cell transplantation (HCT). Pre-transplant seropositivity of graft recipient to Toxoplasma gondii (Nicolle et Manceaux, 1908) is an important factor for disease reactivation after HCT. As toxoplasmosis epidemiology varies all over the world, we perf...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2019.019
更新日期:2019-11-11 00:00:00
abstract::The dynamics of egg production of the tapeworm D. dendriticum has been estimated experimentally in nestlings of the herring gull Larus argentatus per day and per reproductive period. Numbers of eggs in strobilae have been estimated for the maturation period. Mean egg production, of one tapeworm per day (10.42 +/- 2.72...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::In Italy, food-borne outbreaks of opisthorchiasis have occurred since 2003, all of them originating from some lakes in Central Italy where the only European liver fluke, Opisthorchis felineus (Rivolta, 1884) is endemic. The aim of the present study is to investigate the factors that may facilitate the life cycle of O....
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2018.013
更新日期:2018-09-14 00:00:00
abstract::Twenty two percent (22/98) of intertidal fishes of 10 species captured in South Africa at Koppie Alleen, De Hoop Nature Reserve (south coast) and Mouille Point, Cape Town (west coast), harboured single or combined infections of haemogregarines, trypanosomes and an intraerythrocytic parasite resembling a Haemohormidium...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2006.031
更新日期:2006-12-01 00:00:00
abstract::Life cycle of Eimeria coecicola was studied in experimentally infected rabbits by light microscopy and by transmission and scanning electron microscopy. First and second generation meronts developed in the vermiform appendix; third and fourth generation meronts were located in the epithelium of the ileum. Gametogony d...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::Three foxes about 18 weeks old were each subcutaneously inoculated with approximately 200 LD50 dose of extraneurally passaged strain of the Tahyna virus "236". Viremia was demonstrated in all animals during the 48-96 hours interval after infection. The maximum value was 1.31 dex LD50/0.02 ml. Three weeks after infecti...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::Large and small rDNA sequences of 41 species of the family Opecoelidae are utilised to produce phylogenetic inference trees, using brachycladioids and lepocreadioids as outgroups. Sequences were newly generated for 13 species. The resulting Bayesian trees show a monophyletic Opecoelidae. The earliest divergent group i...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2016.013
更新日期:2016-04-20 00:00:00
abstract::In this study 292 sera were screened by the IFAT. 46 sera with variable IFAT titres were tested with ELISA Reagent Set and microtitration tests. A comparative evaluation of the specificity and reliability of ELISA method with that of IFAT for the detection of Toxoplasma infection was done. ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::The genome sequence of the microsporidian parasite Encephalitozoon cuniculi Levaditi, Nicolau et Schoen, 1923 contains about 2,000 genes that are representative of a non-redundant potential proteome composed of 1,909 protein chains. The purpose of this review is to relate some advances in the characterisation of this ...
journal_title:Folia parasitologica
pub_type: 杂志文章,评审
doi:10.14411/fp.2005.003
更新日期:2005-05-01 00:00:00
abstract::During the 3rd Czechoslovak mountaineering expedition to the Himalaya in the spring 1973 ticks of the family Ixodidae were collected from small mammals and additionally from pastured sheep, and humans. The tick material represented the following species: Ixodes (P.) ovatus Neumann, 1899, Ixodes (I.) acutitarsus (Karsc...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::During the First Czechoslovak expedition to the East Hindu Kush in June-September 1965 a total of 193 hosts belonging to 12 species was examined on the presence of ticks. Specimens of the genera Ixodes, Haemaphysalis, Dermacentor and Rhipicephalus were found. Data and comments are given for the species collected. ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::The morphology of oocysts of E. media Kessel, 1929, has been studied and two types have been found. Significant differences were observed in length of the oocysts (average values 29.05 microns with type I and 32.88 microns with type II), in width of the micropyle (5.21 and 3.72 microns, respectively) and in width of t...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::A short survey is given of the occurrence of babesiasis affecting small terrestrial mammals in some parts of Europe. Results obtained in studies of 7,038 small terrestrial mammals (42 species) from Czechoslovakia, Austria, Hungary, Yugoslavia and Bulgaria, show the distribution of Babesia microti in these countries. T...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::While studying the suslik fleas in artificial nests planted in free nature, significant changes in the population dynamics of N. setosa, C. simplex and C. orientalis (from the spring build up to the autumnal peak and the decrease of flea number until the next spring) were noted. The predominance of females in the spri...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::The study of infective elements of Fasciola hepatica which passed through the digestive tract of white mice revealed that those adolescariae (transitive adolescariae) (Table 1), which were not visibly damaged or possessed a more or less digested outer cyst wall, remained infective. The mice infected with transitive ad...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::The tissue reaction to Cysticercus bovis in the lung of cattle with an experimental infection was an inflammatory rim originating in the immediate vicinity of the cysts. The cysts recovered at days 83 and 102 p.i. contained living cysticerci. The rim was composed either of a layer of high histiocytes organized in pali...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::Margaritaella gracilis gen. n. et sp. n. (Proteocephalidea: Proteocephalinae) found in the intestine of Callichthys callichthys (Linnaeus) from the Paraná River basin is described. The new genus is placed in the Proteocephalinae because of the medullary position of the genital organs. It differs from all known genera ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2012.015
更新日期:2012-06-01 00:00:00
abstract::Changes in behaviour and cognition have been associated with latent infection from the apicomplexan protozoan Toxoplasma gondii (Nicolle et Manceaux, 1908) in both animal and human studies. Further, neuropsychiatric disorders such as schizophrenia have also been associated with latent toxoplasmosis. Previously, we fou...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2016.032
更新日期:2016-09-26 00:00:00
abstract::It has been verified under laboratory conditions that constant and changing water temperature markedly affects the micropopulation growth in Gyrodactylus gobiensis parasite on the body surface of gudgeons (Gobio gobio L.). At a water temperature of 12 degrees C, the number of gyrodactylids gradually increased up to th...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Pathology and pathogenicity of the coccidium Eimeria scabra were studied in pigs experimentally infected at 1-2 months of age. Two phases were evident in the course of pathogenic process. In the first phase, 7-8 days after inoculation (DAI), caudal jejunum and ileum were affected by a severe catarrhal inflammation cha...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::Except other functions, surface saccharide residues on trematode larvae are supposed either to be the targets of the intermediate (molluscan) and final host immune systems, or to represent candidates for molecular mimicry. Therefore, changes in surface saccharide patterns during the development of the avian schistosom...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::We confirmed, with the electron microscope, that Trichinella larvae feed directly on the host tissue during their initial development. They suck, by means of a stylet acting as a piston, all components of the muscle cell which develops into a nurse cell, into their oral cavity. The stylet is controlled by a muscle ret...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract::Sex ratio and engorged females ratio were studied in the main mosquito species populations (Aedes aegypti, Culex quinquefasciatus and partially Anopheles vagus) in the houses of Phnom Penh. Collections were carried out in 7 different localities, including area from the centre of the town to the periphery. In Ae. aegyp...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract::Mastacembelocleidus gen. n. (Monogenoidea: Dactylogyridae) is proposed to include two species collected and redescribed from spiny eels (Mastacembelidae) in India and Iraq: Mastacembelocleidus bam (Tripathi, 1959) comb. n. (syn. Ancyrocephalus bam Tripathi, 1959) from the gills of Macrognathus pancalus (new host recor...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2004.036
更新日期:2004-12-01 00:00:00
abstract::A survey is given of 23 species of synathropic and synbovine Diptera collected in the years 1968, 1969 and 1972 in the Mongolian People's Republic by J. Minár. Besides the faunistical comments, the species of hygienic-epidemiological or public health importance are discussed. ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00