Abstract:
:A relatively high rate of mortality among engorged females of Ornithodoros moubata (Murray, 1877) was observed in our laboratory colony. The general aim of the study was to identify the causative agent responsible for this mortality. The diagnostic tests were performed by Yeast Identification Service (CBS-Delft, Netherlands) and the pathogen was identified as the yeast Candida haemulonii (van Uden et Kolipinski, 1962) Meyer et Yarrovi, 1978. The artificial infection study was performed by intrahaemocoelic inoculation of yeast suspension, resulting in a mortality of 37%. The maximum mortality of ticks infected per os by contaminated blood meal was 13%. Re-isolated yeast cells from haemolymph of dead and paralysed ticks were apparently identical with primary yeast cells, without loosing reproductive abilities. An occasional formation of elongated chains of yeast cells (pseudomycelium) was recorded. The majority of ticks infected in both experiments mentioned above survived and displayed no evident symptoms of the infection. The presence of yeast cells in the haemolymph of surviving ticks was not detected. The in vitro phagocytosis assay performed with FITC-labelled yeast cells showed that about 4% of tick haemocytes were phagocytically active against the pathogenic yeast cells. Thus phagocytosis seems to be a potent defence reaction against spreading and multiplying of the yeast C. haemulonii within the tick haemocoel.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
Loosová G,Jindrák L,Kopácek Pkeywords:
subject
Has Abstractpub_date
2001-01-01 00:00:00pages
149-53issue
2eissn
0015-5683issn
1803-6465journal_volume
48pub_type
杂志文章abstract::A parasitic nematode from the stomach of Japanese eel Anguilla japonica Temminck et Schlegel in western Japan, previously identified as Heliconema longissimum (Ortlepp, 1922), was morphologically re-examined and compared with the previous descriptions. In addition, the third-stage larva of this nematode is described, ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2015.028
更新日期:2015-01-01 00:00:00
abstract::Spermiogenesis and the ultrastructural organisation of the spermatozoon of the trypanorhynch cestode Aporhynchus menezesi Noever, Caira, Kuchta et Desjardins, 2010 are described by means of transmission electron microscopy. Type I spermiogenesis of A. menezesi starts with the formation of a differentiation zone contai...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2011.007
更新日期:2011-03-01 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::Results are presented of a serological examination of 1,547 domestic animals (cattle, pig, sheep, horse, goat, dog, cat) from 9 Tyrolian districts (Austria), performed in order to disclose the incidence of leptospirosis. Completely significant titres were domonstrated by means of the MAL test in the serotypes icteroha...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1976-01-01 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 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::Seven trematode species were found in the bile ducts and rumen of domestic ruminants: Fasciola gigantica, F. hepatica, Gigantocotyle explanatum, G. siemense, Paramphistomum epiclitum, Fischoederius cobboldi and Gastrothylax cruminifer. The parasites caused marked pathological changes in the liver and rumen. ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::This paper deals with some ecology and evolution problems of monogeneans--gill parasites of fishes, such as congeneric simultaneous doublets, spatial distribution of species on the gills, interspecific restrictions of biotopes etc. The author proves competitive character of site selection in monogeneans. The role of h...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::From January 1992 to December 1993, a total of 2158 fish, namely Oreochromis leucostictus (Trewavas, 1983), Micropterus salmoides (Lacépède, 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...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Eucoleus schvalovoj Kontrimavichus, 1963 (Nematoda: Capillariidae) is redescribed. The original description of this species was brief and inadequate in that it was based on just a few specimens removed from the Eurasian otter, Lutra lutra (Linnaeus, 1758) in the Khabarovsk region, USSR. Detailed morphological study of...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1999-01-01 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::Two species of Coccomyxa Léger et Hesse, 1907, one of the least studied myxosporean genera, are reported from shallow coastal waters in the Gulf of Eilat, Red Sea, Israel. A new species, Coccomyxajirilomi sp. n. is described from the spotted frillgoby Bathygobius cyclopterus (Valenciennes) (Gobiidae). It forms polyspo...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2007.016
更新日期:2007-06-01 00:00:00
abstract::Using scanning and transmission electron microscopy, ultrastructure of the anterior organ and posterior funnel-shaped canal of Gyrocotyle urna Wagener, 1852 (Cestoda: Gyrocotylidea) from ratfish, Chimaera monstrosa (Holocephali), was studied for the first time. The proper anterior organ is localised at a short distanc...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2015.027
更新日期:2015-05-22 00:00:00
abstract::Ophidascaris wangi sp. n. collected from the king rat snake Elaphe carinata (Günther) (Serpentes: Colubridae) in China is described using both light and scanning electron microscopy. The new species differs from its congeners in the presence of narrow lateral alae originating a short distance posterior to the base of ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2014-12-01 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::Cucolepis gen. n. is erected as monotypic for Cucolepis cincta sp. n., a new species of cyclophyllidean cestode of the family Paruterinidae. The new species is described from the squirrel cuckoo, Piaya cayana Lesson (Aves: Cuculiformes), taken from two localities in Paraguay in 1984 and 1985. This new genus is most si...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2012.040
更新日期:2012-12-01 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::An ICR outbred suckling mouse model of cryptosporidiosis was used to explain some of the variability associated with experimental Cryptosporidium parvum infections in neonate mice. Fourty-four groups of 12 mice each, ranging in age from 4-12 days, each received 1.0 x 10(4) CsCl purified oocysts per os in 5 microns PBS...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::The possibility of vertical transmission of Borrelia burgdorferi sensu lato in Ixodes persulcatus Schulze, 1930 ticks was studied in the progeny of 20 females collected from the vegetation in an active focus of ixodid tick-borne borrelioses (ITBB) located in the Perm oblast, Russia, where Borrelia garinii and B. afzel...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2004.010
更新日期:2004-03-01 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::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::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::The development of the nematode Syncuaria squamata (Linstow, 1883), a gizzard parasite of cormorants, was experimentally studied in the ostracod Notodromas monacha. After the eggs of this nematode have been swallowed by the ostracod, the toothed first-stage larvae of the parasite are released and penetrate through the...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract::The structure of vulva of four Trichocephalus species has been studied using scanning electron microscopy (SEM). The shape of vulva and cuticular elements on vulval appendages is described and documented. The cuticular structures on the vulva have a characteristic shape specific for each species. It is suppossed that ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1978-01-01 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::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::A new acanthocepohalan species, Moniliformis saudi sp. n. is described from the desert hedgehog, Paraechinus aethiopicus (Ehrenberg), in central Saudi Arabia. Fourteen other valid species of Moniliformis Travassos, 1915 are recognised. The new species of Moniliformis is distinguished by having a small proboscis (315-5...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2016.014
更新日期:2016-04-26 00:00:00
abstract::Paramoniezia suis Maplestone et Southwell, 1923 is redescribed from the type and only specimen, and is considered to be a genus inquirendum and species inquirenda, possibly based on a host misidentification. Paramoniezia phacochoeri Baylis, 1927 is redescribed from new material from Phacochoerus africanus (Gmelin) fro...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2014-02-01 00:00:00
abstract::A comparison of the behavioural peculiarities of Ixodes persulcatus Schulze, 1930 (north-western population, Russia) and Ixodes ricinus (L., 1758) from western Russia and Denmark was determined by using two methods. Method 1 involved a sojourn of ticks on vertical plastic sticks and showed that the questing behaviour ...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2000.029
更新日期:2000-01-01 00:00:00
abstract::Cryptosporidium fragile sp. n. (Apicomplexa) is described from black-spined toads, Duttaphrynus melanostictus (Schneider) (Amphibia, Anura, Bufonidae) from the Malay Peninsula. The parasitized animals were directly imported from Malaysia and harboured C. fragile at the time of arrival. Oocysts were subspherical to ell...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2008-06-01 00:00:00