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1

Myrmecophilous Parasitengona (Acari: Prostigmata) - accident or adaptation?

100%
Makol J., Laydanowicz J., Klosinska A.
Annales Zoologici
|
2010
|
tom 60
|
nr 3
Hitherto data on ecological relations between terrestrial Parasitengona mites and ants are summarized and supplemented with the characteristics of two observed cases, which confirm the specific feeding adaptations of some Erythraeidae. Altogether, 21 species representing six Parasitengona families have been recorded as displaying permanent, temporary or accidental relationship with ants. Of those only the parasitic larvae of Forania mentonensis (André, 1929), F. sendrai Mayoral et Barranco, 2010, Makolia crimeaensis Saboori, Khaustov et Hakimitabar, 2009, Leptus clarki Southcott, 1989 and L. debeauforti (Oudemans, 1905) may be regarded as specialists. The verified diagnosis of M. crimeaensis, based on the material originating from Crimea (Ukraine) is proposed.
2

On the Sarcocysts of two further Sarcocystis species being new for the European hare

100%
Odening K., Wesemeier H. H., Bockhardt I.
Acta Protozoologica
|
1996
|
tom 35
|
nr 1
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Epidemiological consequences of host specificity of ticks (Ixodida)

84%
Kiewra D., Lonc E.
Annals of Parasitology
|
2012
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tom 58
|
nr 4
Arthropod-borne diseases still pose a serious health problem worldwide. Epidemiological consequences result from various environmental connections and interaction between parasites and their host, including host specificity of parasites and transmitted pathogens. The ixodid ticks (Ixodida) occupy a prominent position within the group of parasites as being vectors on the northern hemisphere in temperate climate zone. They are blood-feeding ectoparasites with different host specificity and capacity to transmit various pathogens. Feeding on many mammals (including humans), birds, reptiles and amphibians they present a great medical problem. For example, Ixodes ricinus can infest several hundred species of animals. It is a vector of pathogenic viral, bacterial and protozoal organisms, including Borrelia burgdorferi sensu lato complex which is the etiological agent of Lyme borreliosis. The competent reservoir hosts of Borrelia include many common species of small and medium-sized rodents as well as several bird species. Epidemiological consequences are complicated by the fact that specific Borrelia genospecies are associated with particular reservoir hosts. Thus, detailed analysis of epidemiological consequences requires a comprehensive knowledge of the biology and ecology of vectors, pathogens and their reservoirs including host specificity of ticks. Spatial modelling tick-borne risk in time and space is made possible by the use of remote sensing and techniques of geographical information system (GIS).
4

Intestinal ciliates of Brazilian capybara (Hydrochoerus hydrochaeris L.)

84%
Cedrola F., Fregulia P., D'Agosto M., Junio Pedroso Dias R.
Acta Protozoologica
|
2018
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tom 57
|
nr 1
5

A review of the Lepocreadiidae (Digenea, Lepocreadioidea) from fishes of the waters around New Caledonia

84%
Bray R. A., Justine J.-L.
Acta Parasitologica
|
2012
|
tom 57
|
nr 3
The lepocreadiid fauna of New Caledonia is reported and discussed and a new species and several new host and locality records presented. Hypoporus plataxi sp. nov. from Platax teira is described and distinguished from its only congener by its terminal genitalia, the structure of the anterior part of the alimentary system and other morphological features. New host and locality records and a description are given of Lepotrema cf. clavatum Ozaki, 1932 in Sufflamen fraenatum. New host and locality records are given of Lobatocreadium exiguum (Manter, 1963) in Pseudobalistes fuscus, which is also reported in the known hosts Abalistes filamentosus and Sufflamen fraenatum. New host and locality records are given of Opisthogonoporus amadai Yamaguti, 1937 in Branchiostegus wardi. A new host record is made for Holorchis plectorhynchi Durio et Manter, 1968 in Diagramma pictum. New records in New Caledonian waters are of Bulbocirrus aulostomiYamaguti, 1965 in Aulostomus chinensis, Echeneidocoelium indicum Simha et Pershad, 1964 in Echeneis naucrates, Lepidapedoides kalikali Yamaguti, 1970 in Pristipomoides auricilla, Neomultitestis aspidogastriformis Bray et Cribb, 2003 in Platax teira, Opechona bacillaris (Molin, 1859) in Rastrelliger kanagurta, Prodistomum keyam Bray et Cribb, 1996 in Monodactylus argenteus and Pseudopisthogonoporus vitellosus (Pritchard, 1963) in Naso brevirostris and N. annulatus. New metrical data are presented for Holorchis castex Bray et Justine, 2007 in Diagramma pictum, Hypocreadium patellareYamaguti, 1938 in Sufflamen fraenatum, Intusatrium robustum Durio et Manter, 1968 in Bodianus loxozonus and B. perditio and Lepidapedoides angustus Bray, Cribb et Barker, 1996 in Epinephelus chlorostigma, E. fasciatus, E. maculatus and E. retouti. Literature records are included and the fauna in general discussed.
6
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First record of Thecacineta calix (Ciliophora: Suctoria) on harpacticoid copepod from Aegean Sea, Turkey

84%
Durucan F.
Acta Biologica
|
2019
|
tom 26
7

Host specificity and in vivo infectivities of the mouse coccidian parasites Eimeria krijgsmanni

84%
Hashimoto K., Tanaka T., Matsubayashi M., Endo K., Umemiya-Shirafuji R., Matsui T.
Acta Parasitologica
|
2014
|
tom 59
|
nr 2
In the present study, infection experiments of E. krijgsmanni using various hosts were conducted to elucidate the host specificity among some animals and the infectivity to mouse strains. According to the results, the infection was not found in most animals, except for rats, in which some oocyst shedding was detected, and there was no significant difference in infectivity among mouse strains. Additionally, oocyst shedding was hardly detectable in a secondary infection to immunocompetent mice, although it was found in immunodeficient mice. These results indicated that only immunocompetent mice could develop adaptive immunity against reinfection by stimuli of the primary infection. Furthermore, the infection experiments were performed with splenic macrophage (Mφ)-depleted mice with a reagent and Beige (Bg) mice known to be a strain of mice with low NK cell activity. No significant effect was found in primary or secondary infections in the Mφ-depleted mice, whereas the mortality rate was clearly increased in Bg mice inoculated with a large number of oocysts. Their oocyst shedding was similar to that of immunocompetent hosts. Taken together, these results suggested that Mφ has only a minor role in the immune response, but the NK cell has an important function in resistance to primary infection of E. krijgsmanni.
8

Molecular identification of cryptic species of Ceratomyxa Thelohan, 1892 (Myxosporea: Bivalvulida) including the description of eight novel species from apogonid fishes (Perciformes: Apogonidae) from Australian waters

84%
Heiniger H., Adlard R. D.
Acta Parasitologica
|
2013
|
tom 58
|
nr 3
Ceratomyxa parasites from the gall bladders of 23 species of cardinalfishes (family Apogonidae) from Australian waters were examined for their taxonomic identity and phylogenetic relatedness. We identified 15 of the 23 apogonid fish species infected with species of Ceratomyxa. Although the majority of apogonid species harboured only a single Ceratomyxa species, four were found with multiple species of Ceratomyxa. This study describes eight novel species using a combination of morphological, small subunit ribosomal DNA (SSU rDNA) and biological characters. Six Ceratomyxa species are reported from single apogonid species, while two are reported from multiple host species. Molecular data were critical in identifying several morphologically cryptic species. However, our results suggest that SSU rDNA was not capable of distinguishing all the species present in the current study system and alternative genetic markers should be investigated in the future.
9

The occurrence of Trichodina domerguei Wallengren, 1897 and Trichodina tenuidens Faure-Fremiet, 1944 [Peritrichia] on three-spined stickleback, Gasterosteus aculeatus L., 1758 found in a brackish and freshwater environment

84%
Ozer A.
Acta Protozoologica
|
2003
|
tom 42
|
nr 1
10

Nodulation genes in the Rhizobium-plant signal exchange

84%
Lorkiewicz Z.
Acta Biochimica Polonica
|
1997
|
tom 44
|
nr 1
The process of the host-plant recognition by rhizobia is complex and multi- step. The interaction between legumes and microorganisms results in the induction of the root nodule. This symbiotic interaction is highly host-specific. Bacteria within nodules fix atmospheric nitrogen. This process is of immense ecological and economic significance. The subject of this presentation is the molecular mechanism by which the bacterium determines its host-specific characteristics. First flavonoids secreted by the plant roots induce the tran­scription of bacterial genes involved in nodulation, the so-called nod genes. This leads to the next step of the signalling system, i.e. the production and secretion of lipo-oligosaccharide molecules by rhizobia. These signal molecules have various discernible effects on the roots of the host leguminous plants. The bacterial nodulation factors were isolated and structurally identified as substi­tuted and N-acylated chitin oligosaccharides. These prokaryotic signals play a key role in the symbiosis by controlling the host specificity of the bacteria. They constitute a new class of signalling molecules able to elicit nodule organogene­sis in leguminous plants in the absence of bacteria. More recent studies impli­cate involvement of root cell membrane depolarization and ion selective chan­nels in the communication processes that initiate nodule formation.
11
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Content available

Positive and negative implications of conventional and nonconventional Bacillus thuringiensis products

84%
Lonc E., Lachowicz T. M.
Wiadomości Parazytologiczne
|
1994
|
tom 40
|
nr 3
12

Prevalence, mean intensity of infestation and host specificity of Spinturnicidae mites (Acari: Mesostigmata) on bats (Mammalia: Chiroptera) in the Pantanal, Brazil

67%
Silva C. L., Graciolli G.
Acta Parasitologica
|
2013
|
tom 58
|
nr 2
Acari ectoparasites were collected from bats during 12 months in the Rio Negro farm (19°34′22″S and 56°14′36″W), Aquidauana, Mato Grosso do Sul. A total of 654 bats belonging to the families Phyllostomidae, Noctilionidae, Molossidae, Vespertilionidae and Emballonuridae were captured. Only 136 bats of nine genera and 11 species were parasitised. Periglischrus iheringi Oudemans was the most abundant mite species, and this prevalence may be related to the low degree of host specificity of this species and due to the broad geographical distribution of its hosts. The greatest mean intensity was found to Periglischrus torrealbai Machado-Allison on Phyllostomus discolor Wagner (Phyllostomidae) and Periglischrus tonatii Herrin and Tipton associated with Lophostoma silviculum d’Orbigny (Phyllostomidae), which also had the highest prevalence of infestation.
13

Uromycladium naracoortensis, a new species of rust fungi (Uredinales) from Australia, with new observations on described Uromycladium species

67%
Berndt R.
Polish Botanical Journal
|
2010
|
tom 55
|
nr 2
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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New trends in research on parasite host specificity: a survey of current parasitological literature

67%
Pojmanska T., Niewiadomska K.
Annals of Parasitology
|
2012
|
tom 58
|
nr 2
The main goal of this article is to attract attention of junior scientists interested in evolutionary and ecological parasitology, to some very interesting articles dealing with the methodology of such investigations. The authors review some problems related to terminology used in the studies of host-parasite relationships and then recapitulate the subjects of five articles, in which new indices of the range and characters of hosts specificity are proposed. These are: the article of Caira et al. (2003), Poulin et Mouillot (2003, 2005), Krasnov et al. (2011) and Poulin et al. (2011).
15
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Host specificity of Ostertagiinae in ruminants

67%
Wyrobisz A., Kowal J., Nosal P.
Annals of Parasitology
|
2016
|
tom 62
|
nr Suppl.
16

Passive dispersal in arachnids

67%
Szymkowiak P., Gorski G., Bajerlein D.
Biological Letters
|
2007
|
tom 44
|
nr 2
75-101
17

Remarks to the validity of Genbank sequences of Myxobolus spp. (Myxozoa, Myxosporidae) infecting Eurasian fishes

67%
Molnar K.
Acta Parasitologica
|
2011
|
tom 56
|
nr 3
Of the 850 known Myxobolus spp., 89 named species have DNA (in most cases 18S rDNA) sequences deposited in the Genbank. Only a part of the deposited sequences represent well identified samples collected from adequate organs of the original hosts. Some of the samples were collected from additional hosts or from fishes genetically far standing from the type-host. In the paper, reliability of sequences of some best known Myxobolus spp., deposited in the Genbank from freshwater fishes of Eurasia’s Palaearctic Region, are surveyed. Genbank sequences are classified into three groups. Sequences obtained from morphologically well characterised Myxobolus spp., which were collected from the type hosts, compose the group of valid sequences. To the group of probable valid sequences belong samples from spores morphologically corresponding to the original description, but collected from fishes closely related to the type-host; while sequences obtained from hosts genetically far standing from the type-hosts represent the category of the un-valid group.
18

Phlebotomine sandflies – potential vectors of avian trypanosomes

67%
Svobodova M., Radrova J.
Acta Protozoologica
|
2018
|
tom 57
|
nr 1
19

A Sarcocystis species from goshawk [Accipiter gentilis] with Great Tit [Parus major] as intermediate host

67%
Svobodova M.
Acta Protozoologica
|
1996
|
tom 35
|
nr 3
20

Cross-infection experiments confirm the host specificity of Goussia spp. [Eimeriidae: Apicomplexa] parasitizing cyprinid fish

67%
Molnar K., Ostoros G., Baska F.
Acta Protozoologica
|
2005
|
tom 44
|
nr 1
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