Abstract：
:Experimental infection of rainbow trout Oncorhynchus mykiss (Walbaum) with the monogenean Discocotyle sagittata (Leuckart, 1842) allowed comparison between trickle and single exposure, two infection modes demonstrated to occur in the wild. Both types of infection resulted in mean larval attachment success around 50%, which was significantly dependent on dose of infective larvae used (P < 0.0001), but was not affected by mode of infection (P = 0.244). Worms recovered from fish exposed to the same number of oncomiracidia but different mode of infection differed in their rate of development. The developmental stage attained by parasites was significantly affected by number of infective larvae used (P = 0.005), and by the interaction between dose and mode of infection (P = 0.026), suggesting competition among attached larvae. Statistical analysis demonstrated that in the early stages of infestation, worm distribution over the gill arches can be explained by the relative amount of water flowing over them. One, two and three months post-infection parasite numbers were comparable (P = 0.805), but their observed distribution gradually decreased in gill arches III and IV and increased in gill arch I, suggesting that parasites migrate after initial attachment. These results reproduce phenomena observed in the field, indicating that the experimental infection system could be employed to study infection dynamics and host-parasite interactions under controlled conditions.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
Rubio-Godoy M,Tinsley RCdoi
10.14411/fp.2002.051keywords:
subject
Has Abstractpub_date
2002-01-01 00:00:00pages
269-78issue
4eissn
0015-5683issn
1803-6465journal_volume
49pub_type
杂志文章abstract：:Microsporidia constitute a large group of obligate intracellular protozoan parasites that inject themselves into host cells via the extrusion apparatus of the infective spore stage. Although the injection process is poorly understood, its energy source is thought to reside in the posterior vacuole that swells signific...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2005.014
更新日期：2005-05-01 00:00:00
abstract：:A microsporidium isolated in vitro from urine of an AIDS patient was identified as a species of Encephalitozoon. Investigation of the isolate by electron microscopy, amplification of DNA by RAPD PCR, protein analysis by SDS-PAGE and Western blotting and infectivity to athymic mice revealed that it differs from establi...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：: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 ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Clearcutting and deforestation lead to increased erosion, increased water temperature, altered water chemistry, and modified watershed hydrology in aquatic systems. Effects on biological organisms have been documented for phytoplankton, zooplankton, benthos, and fish. In this study, parasites of the northern redbelly ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2001.045
更新日期：2001-01-01 00:00:00
abstract：:Faecal samples from the rock hyrax (Procavia capensis jayakari Thomas) were collected from the Ibex Reserve in central Saudi Arabia. Eimerian oocysts, which are believed to represent a new species described here as Eimeria tamimi sp. n., were detected in 40 out of 93 samples. Oocysts were fully sporulated in 24-48 hou...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2020.001
更新日期：2020-01-10 00:00:00
abstract：:Synbranchiella gen. n. is proposed to accommodate Synbranchiella mabelae sp. n. (Proteocephalidae: Monticelliinae) from the intestine of the marbled swamp eel Synbranchus marmoratus Bloch, in the River Colastiné, a tributary of the middle River Paraná in Argentina. The new genus is placed in the Monticelliinae because...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2017.015
更新日期：2017-05-05 00:00:00
abstract：:Arostrilepis beringiensis (Kontrimavichus et Smirnova, 1991) is redescribed on the basis of its type specimens from Lemmus trimucronatus (Richardson) and material from the collections of the Institute of Systematics and Ecology of Animals, Novosibirsk from the lemmings Myopus schisticolor (Lilljeborg) and Lemmus sibir...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2011.029
更新日期：2011-11-01 00:00:00
abstract：:Four out of twenty (20%) specimens of the lizard Scincus hemprichii Wiegmann, collected in Saudi Arabia were infected with a previously undescribed species of Choleoeimeria. Oocysts of Choleoeimeria jazanensis sp. n. are cylindroidal, 26 x 15 microm, with a smooth bilayered wall and a shape index of 1.7. Oocyst residu...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2013.026
更新日期：2013-07-01 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：: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：:Early developmental stages of C. bovis possess microvilli on the tegument. The differentiation of microtriches occurs at the time of scolex formation. The distal cytoplasm contains rod-shaped bodies and vesicles of various sizes. Both organelles originate from subtegumental cells. During the development of the bladder...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：:The paper contains results of helminthological studies on ruminants introduced into Czechoslovakia from other regions and continents. It is pointed out that introduction of wild ruminants is not only of theoretical importance in the adaptation of parasites to a new environment, but also of practical consequence in the...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:Neopolystoma liewi sp. n. is described from the conjunctival cavity of the Malayan box turtle Cuora amboinensis (Daudin, 1802), in Peninsular Malaysia. This is the first record of Neopolystoma in Malaysia and the fourth polystomatid species described from C. amboinensis. Of the 27 Malayan box turtles examined, 8 were ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2000.003
更新日期：2000-01-01 00:00:00
abstract：:Babesiosis is a tick-borne disease that may exhibit a broad range of clinical manifestations. According to the Food and Drug Administration (FDA), Babesia species belong to the most common transfusion-transmitted pathogens (FDA, May 2019), but the awareness of the disease caused by these parasitic protists is still lo...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2020.031
更新日期：2020-10-30 00:00:00
abstract：:Primary amoebic meningoencephalitis (PAM) was induced in mice by intranasal inoculation of Naegleria fowleri (Singh et Das, 1970) to study the role of the blood vessels and lungs in the early and later stages in this disease. Upon culturing blood and lung tissue obtained at 24-, 36-, 48-, 72-, 96-, and 120-hour time p...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2002.035
更新日期：2002-01-01 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：:The adult morphology is described and illustrated of Neoplagioporus kajika sp. n. (Digenea: Opecoelidae) found in the Japanese fluvial sculpin Cottus pollux Günther (Osteichthyes: Scorpaeniformes: Cottidae) collected in the Naka River at Terase Bridge, Narutake, Nakagawa Town, Fukuoka Prefecture, Kyushu, Japan. This n...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2006.026
更新日期：2006-09-01 00:00:00
abstract：:Particles of tick-borne encephalitis virus measuring 42-50 nm were found in in D. reticulatus nymphs after eclipse-phase lasting 10 days and were localized in epidermal and salivary gland cells. ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:The developmental cycle of the trematode Rubenstrema exasperatum (Rudolphi, 1819), a common parasite of insectivores of the family Soricidae, is described here for the first time. The first intermediate host in nature is the snail Planorbarius corneus. Metacercariae encysted experimentally in larvae of the mosquito Cu...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Previously published multidisciplinary studies in the Miramichi and Bouctouche rivers (New Brunswick, Canada) noted significant changes in fish health parameters, including elevated tissue levels of organic contaminants and a wide range of physiological disturbances, in mummichog Fundulus heteroclitus (L.) from a site...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2011.023
更新日期：2011-09-01 00:00:00
abstract：:The paper comprises a list of the nematode type specimens deposited in the helminthological collection of the Institute of Parasitology, Czechoslovak Academy of Sciences, in Ceské Budĕjovice. These materials include a total of 110 species and subspecies. ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Quantitative data are presented on the spatial distribution of metacercariae of the digenean trematode Diplostomum phoxini (Faust, 1918) in the brains of minnows, Phoxinus phoxinus (Linnaeus, 1758), from two Scottish populations. Sequential examination of serial histological sections revealed metacercariae to be uneve...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:We studied the specificity of the individual developmental stages of Fasciola hepatica for evoking immune response of the host to reinfection with this parasite, whereby the primary infection was eliminated by a dose of 150 mg/kg diamphenethide administered in various intervals. In rats we observed a state of hypersen...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:Twelve species of keratin decomposers isolated from 923 samples of feathers, nests and pellets of 90 species of free-living birds were clustered in 4 "econs" (numerical ecological groups): (A) Artroderma tuberculatum, A. ciferrii, A. multifidum, A. cuniculi (associated with the birds nesting in hollows); (B) Ctenomyce...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1976-01-01 00:00:00
abstract：:Blood smears prepared from the peripheral blood of 20 wild caught Amietia quecketti (Boulenger) from the North-West University Botanical Gardens, North West Province, South Africa, were examined for the presence of haemogregarines. A haemogregarine species comparative in morphology, host and geographical locality to t...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：2014-08-01 00:00:00
abstract：:Scanning electron microscopy was used to determine the number of flagella on the flagellates of Naegleria australiensis, N. fowleri, N. gruberi, and N. jadini. Although the majority of flagellates had 2 flagella, there was considerable variation among individual cells. The number of flagella per flagellate varied from...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:Six mite species of the family Myobiidae, Radfordia (Austromyobia)persica sp. n., Radfordia (Austromyobia) merioni Bochkov, Dubinina et Chirov, 1990, Radfordia (Radfordia) acomys Fain et Lukoschus, 1977, Radfordia (Radfordia) affinis (Poppe, 1896), Radfordia (Graphiurobia) dyromys Fain et Lukoschus, 1973, and Myobia (...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2000.015
更新日期：2000-01-01 00:00:00
abstract：:A new species of amphizoic amoeba, Nuclearia pattersoni sp. n., isolated from gills of Rutilus rutilus L. is described. It is characterised by elongate flattened trophozoites of irregular shape. The longer dimension of their bodies is 13.2 (11.0-15.7) microm. Filopodia radiating mostly from the poles are 2 to 2.5 time...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：2003-09-01 00:00:00
abstract：:Malate dehydrogenase (EC 1.1.1.37.) (MDH) was purified to apparent homogeneity from the cytosolic fraction of the protozoan Trichomonas vaginalis Donné. The four step purification included ion-exchange chromatography (DEAE-Sephacel and Q-Sepharose, elution with NaCl) and affinity chromatography (Reactive Red Agarose, ...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:Three adult nematode specimens, all ovigerous females belonging to the family Cystidicolidae Skryabin, 1946, were found for the first time in the subcutaneous tissue around the eye of the captive porcupinefish Diodon nichthemerus Cuvier at a public aquarium in Osaka, Japan. Because no male was available, these could n...
journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2017.021
更新日期：2017-07-10 00:00:00
