Abstract:
:The transmission from one host to another constitutes a challenging obstacle for parasites and is a key determinant of their fitness. Due to their complex life histories involving several different hosts, the free-living dispersal stages (cercariae) of digenean trematodes show a huge diversity in morphology and behaviour. On a finer scale, we still have an extremely limited understanding of the inter- and intraspecific variation in transmission strategies of many trematode species. Here, we present a novel method to study the movement patterns of cercariae of four New Zealand trematode species (Coitocaecum parvum, Maritrema poulini, Apatemon sp. and Aporocotylid sp. I.) via automated video tracking. This approach allows to quantify parameters otherwise not measurable and clearly illustrates the individual strategies of parasites to search for their respective target hosts. Cercariae that seek out an evasive fish target hosts showed higher swimming speeds (acceleration and velocity) and travelled further distances, compared with species searching for high-density crustacean hosts. Automated video tracking provides a powerful tool for such detailed analyses of parasites' host-searching strategies and can enhance our understanding of complex host-parasite interactions, ranging from parasite community structure to the transmission of potential disease agents.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Selbach C,Poulin Rdoi
10.1017/S0031182018000288subject
Has Abstractpub_date
2018-09-01 00:00:00pages
1469-1474issue
11eissn
0031-1820issn
1469-8161pii
S0031182018000288journal_volume
145pub_type
杂志文章相关文献
PARASITOLOGY文献大全abstract::A guinea-pig immunoglobulin-G linked agarose column was used to detect the immunoglobulin-G binding proteins (IGBP) in the ixodid ticks, Rhipicephalus appendiculatus, Amblyomma variegatum and Ixodes hexagonus. IGBPs were found in salivary gland extract (SGE) of the unfed ticks of all 3 species. The sizes of the IGBPs,...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000064908
更新日期:1995-08-01 00:00:00
abstract::Costa Rica is near malaria elimination. This achievement has followed shifts in malaria health policy. Here, we evaluate the impacts that different health policies have had on malaria transmission in Costa Rica from 1913 to 2018. We identified regime shifts and used regression models to measure the impact of different...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182020000621
更新日期:2020-08-01 00:00:00
abstract::We investigated the segregation of an intracellular microsporidian parasite during host cell division. A time-course experiment was carried out to examine the distribution of parasites relative to host chromosomal DNA via light and electron microscopy. Fluorescent light microscopy and EM studies showed that the parasi...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182098003540
更新日期:1999-01-01 00:00:00
abstract::Intraerythrocytic malaria parasites ingest the cytosol of their host cell and digest it inside their acid food vacuoles. Acidified (pH 4-5.5, 37 degrees C) human red blood cell lysates were used to simulate this process, measuring the denaturation of haemoglobin (Hb) and the release of iron, in the absence or presence...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000075910
更新日期:1994-05-01 00:00:00
abstract::New treatment strategies for schistosomiasis should be evaluated, since resistant strains to the only available drug, Praziquantel, have already been described. Thus, we demonstrated antiparasitic effects of ethanolic extracts of Jatropha gossypiifolia and Piper arboreum on cercariae and adult worms of Schistosoma man...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S003118202000181X
更新日期:2020-12-01 00:00:00
abstract::Glycans at the surface of adult Schistosoma mansoni were investigated with gold-labelled lectins. The fragile complex of the glycans with the outer membranes could be preserved for electron microscopy by avoiding extensive pre-fixation with aldehydes and by introducing osmium-ferrocyanide as a membrane fixative. Male ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000081877
更新日期:1995-09-01 00:00:00
abstract::The localization of adult Schistosoma mansoni originating from Guadeloupe (West Indies) was analysed in the natural host Rattus rattus in experimental and natural infections. A transfer of schistosomes from the porto-mesenteric system to the lungs occurs between the 4th and the 20th weeks post-infection, with a peak b...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000060790
更新日期:1992-02-01 00:00:00
abstract::Cryptosporidium parvum is composed of multiple subtypes, which appear to be zoonotic or anthroponotic. Therefore, in order to understand the molecular epidemiology of this species and to control the zoonotic transmission, it is essential to identify the isolates at the subtype level. In the present study, 60.2% of 103...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182006001508
更新日期:2007-03-01 00:00:00
abstract::Artificially transformed schistosomula of Schistosoma mansoni develop a consistent but small protection against the lethal effects of antibody plus complement when cultured for 24 h in a chemically defined medium. In contrast, they become rapidly resistant to antibody plus complement, when cultured in the presence of ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000049404
更新日期:1978-10-01 00:00:00
abstract::A dipstick dot ELISA for detection of Taenia-specific coproantigens was developed. The test was based on a sandwich ELISA using antibodies raised against adult Taenia solium. Antibodies were absorbed to nitrocellulose paper previously adhered to acetate plastic to form dipsticks. Once blocked with 5% skimmed milk and ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000079439
更新日期:1993-07-01 00:00:00
abstract::Two natural human interferon alpha preparations, (nHuIFN-alpha [Cantell]) and (nHuIFN-alpha [ISI]), were used for the oral treatment of cattle experimentally infected with Theileria parva parva. In the first experiment, 8 Friesian bulls were inoculated with a 1 in 10 dilution of a sporozoite stabilate of T.p. parva (M...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000063241
更新日期:1990-10-01 00:00:00
abstract::Strongyloides ratti is a parasitic nematode of rats. The host immune response against S. ratti affects the development of its free-living generation, favouring the development of free-living adult males and females at the expense of directly developing, infective 3rd-stage larvae. However, how the host immune response...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182005007675
更新日期:2005-09-01 00:00:00
abstract::The transmission-blocking monoclonal antibody 13.1, which recognizes the ookinete surface antigen Pbs21 of Plasmodium berghei, and an IgG2a isotype control antibody 26.37 were purified by caprylic acid and ammonium sulphate precipitation. Fab fragments were prepared by papain digestion. IgG but not Fab from antibody 1...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000077702
更新日期:1994-07-01 00:00:00
abstract::The current World Health Organization strategic plan targets the elimination of schistosomiasis as a public health problem by 2025 and accurate diagnostics will play a pivotal role in achieving this goal. DNA-based detection methods provide a viable alternative to some of the commonly used tests, notably microscopy an...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S003118201700021X
更新日期:2017-07-01 00:00:00
abstract::We estimate the incidence rate, serological conversion rate and basic case reproduction number (R0) of Leishmania infantum from a cohort study of 126 domestic dogs exposed to natural infection rates over 2 years on Marajó Island, Pará State, Brazil. The analysis includes new methods for (1) determining the number of s...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182097001200
更新日期:1997-08-01 00:00:00
abstract::We present a new phylogenetic analysis of 15 primate Plasmodium species based on 18S rDNA sequences including new sequences of Plasmodium coatneyi, P. fieldi, P. gonderi, P. hylobati and P. simium. The results are discussed in the context of the parasite host species and their geographical distribution. Contrary to ot...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182004006146
更新日期:2004-12-01 00:00:00
abstract::Since 2004 there has been a remarkable increment in our knowledge of the proteins and glycans that reside at, or are released from the surfaces of schistosomes in the mammalian host. Initial characterization of the soluble proteome permits distinctions to be made between the parasite secretome and its necrotome. The p...
journal_title:Parasitology
pub_type: 杂志文章,评审
doi:10.1017/S0031182012000339
更新日期:2012-08-01 00:00:00
abstract::In this study, the proteome of axenically grown Entamoeba histolytica parasites was explored by two-dimensional gel electrophoresis (2-DE), employing a practical and effective procedure for the solubilization of E. histolytica proteins. Approximately 900 protein species in the pH range between 4 and 7 were detected by...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182006001442
更新日期:2007-02-01 00:00:00
abstract::We assessed the distribution of Trypanosoma cruzi Discrete Typing Units (DTUs) in domestic and peridomestic Triatoma infestans and Triatoma sordida specimens collected in a well-defined rural area in Pampa del Indio, northeastern Argentina. Microscopically-positive bugs were randomly selected with a multi-level sampli...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182012000856
更新日期:2012-10-01 00:00:00
abstract::A culture chamber fitted with a polycarbonate sieve has been used to isolate Plasmodium knowlesi merozoites as they are released from schizonts. A 3 mum pore-size sieve allows passage of normal erythrocytes and red cells containing rings and trophozoites and can be used to concentrate schizonts from a mixed cell popul...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000047235
更新日期:1975-12-01 00:00:00
abstract::Most human cases of cryptosporidiosis are caused by Cryptosporidium parvum or Cryptosporidium hominis, but the use of molecular diagnostic methods has revealed that several other less common species or genotypes can also be involved. Here, we describe two unusual causes of cryptosporidiosis, one being the recently des...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S003118201300084X
更新日期:2013-12-01 00:00:00
abstract::The discrete typing units (DTUs) of Trypanosoma cruzi that infect domestic dogs and cats have rarely been studied. With this purpose we conducted a cross-sectional xenodiagnostic survey of dog and cat populations residing in 2 infested rural villages in Pampa del Indio, in the humid Argentine Chaco. Parasites were iso...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S003118201200159X
更新日期:2013-03-01 00:00:00
abstract::To assess the prevalence of Taenia solium cysticercosis in patients with neurological disorders in Slovenia, serum/cerebrospinal fluid (CSF) samples from 348 suspected patients were collected between the beginning of January 2001 and the end of December 2012 and analysed serologically for the presence of anti-T. soliu...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182013001947
更新日期:2014-04-01 00:00:00
abstract::The outcome of a parasite infection is the result of the interaction between the host and the parasite. In the system we studied, there are 3 critical stages for the outcome of infection of the (intermediate) host, the copepod Macrocyclops albidus, with the cestode Schistocephalus solidus. During the establishment pha...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182001001275
更新日期:2002-04-01 00:00:00
abstract::We have cloned a cDNA encoding a novel antigen from a Sarcoptes scabiei (Acari) cDNA library by immunoscreening with sera from S. scabiei-infected dogs. The antigen is encoded by a 2,157 bp mRNA with a predicted open reading frame of 719 amino acids (molecular weight 79 kDa). Our sequence analysis identified the prese...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182005008747
更新日期:2006-01-01 00:00:00
abstract::The impact of immunization with gentamicin-attenuated Leishmania infantum (H-line) on the immunophenotypic profile of popliteal lymph node (PLN) and peripheral blood mononuclear cells (PBMCs) of dogs was assessed by flow cytometry and immunohistochemistry. Compared with the dogs infected with L. infantum wild-type (Gr...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182012001187
更新日期:2012-11-01 00:00:00
abstract::A field trial was conducted to evaluate the potential of the nematode-destroying fungus Duddingtonia flagrans to control free-living stages of horse strongyles. In late Spring 2 groups of horses (yearlings) with mixed infections of strongyles were allowed to contaminate 2 equal-sized pastures. One of the groups (F) re...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s003118200006621x
更新日期:1996-07-01 00:00:00
abstract::Solid experimental evidence indicates that EBA-175 is used as a ligand by the Plasmodium falciparum merozoite to bind to human RBC, via different binding processing fragments. Using synthetic peptides and specific receptor-ligand interaction methodology, we have identified 6 high-activity binding sequences from the EB...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s003118209900551x
更新日期:2000-03-01 00:00:00
abstract::A number of authors have demonstrated that the schistosomicidal compound, Praziquantel (Pzq), depends for its action upon the immune status of the host (Sabah et al. 1985; Brindley & Sher, 1987; Doenhoff et al. 1987). We have attempted to define the synergistic interaction between immuno- and chemotherapy further, usi...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000059497
更新日期:1991-10-01 00:00:00
abstract::Eggs of Neoheterocotyle rhinobatidis, Troglocephalus rhinobatidis and Merizocotyle icopae (Monogenea: Monocotylidae) from the shovelnose ray Rhinobatos typus (Rhinobatidae) have a distinct hatching pattern linked to light periodicity. Larvae of these 3 monogenean species emerge only during daylight when exposed to nat...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s003118209900637x
更新日期:2000-09-01 00:00:00