Abstract:
:The complete sequence of the 18S small subunit (SSU) ribosomal DNA of Hammondia hammondi and Sarcocystis mucosa was obtained and compared to SSU rDNA sequences of Neospora caninum, Toxoplasma gondii, Besnoitia besnoiti, 2 species of Frenkelia, 3 species of Isospora, and 13 species of Sarcocystis. Analyses showed that H. hammondi and T. gondii are monophyletic and that these taxa shared a common ancestor with N. caninum and B. besnoiti. The weight of evidence shows that S. mucosa, S. neurona, and Frenkelia species form a clade thereby supporting the conclusion that Sarcocystis is paraphyletic.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Jenkins MC,Ellis JT,Liddell S,Ryce C,Munday BL,Morrison DA,Dubey JPdoi
10.1017/s0031182099004618subject
Has Abstractpub_date
1999-08-01 00:00:00pages
135-42eissn
0031-1820issn
1469-8161journal_volume
119 ( Pt 2)pub_type
杂志文章相关文献
PARASITOLOGY文献大全abstract::Vitellogenin synthesis by the fat body has been monitored using in vitro culture and immunoprecipitation. This system was found to be efficient for measuring vitellogenin production in both non-infected Tenebrio molitor and those infected with Hymenolepis diminuta. In fat bodies from infected beetles, vitellogenin pro...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000066658
更新日期:1996-04-01 00:00:00
abstract::Past and more recent research has examined the ultrastructure, metabolism, cell biology, genomics and post-genomics of schistosome schistosomula. These areas are considered and discussed in this review with particular emphasis on (1) the early migration phases through the host, (2) interaction of the host immune respo...
journal_title:Parasitology
pub_type: 杂志文章,评审
doi:10.1017/S0031182006001648
更新日期:2007-04-01 00:00:00
abstract::A cross-sectional sero-epidemiological study was performed in Magoda, Tanzania, an area where malaria is holoendemic. Blood samples were collected from children (1-4 years) and tested for IgG antibody reactivity against 2 recombinant protein fragments of Plasmodium falciparum Rhoptry-Associated Protein-1 (rRAP-1). The...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182099004825
更新日期:1999-10-01 00:00:00
abstract::In this study, we describe the molecular analysis of zinc-metalloproteases from the abomasal nematode Ostertagia ostertagi which were exclusively recognized by local antibodies of immune cattle. Full-length or partial coding sequences of 4 different zinc-metalloprotease cDNAs of Ostertagia (met-1, -2, -3 and -4) were ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182004006274
更新日期:2005-01-01 00:00:00
abstract::Sex ratio theory posits that the adaptive proportion of male to female gametocytes of a malaria parasite within the vertebrate host depends on the degree of inbreeding within the vector. Gametocyte sex ratio could be phenotypically flexible, being altered based on the infection's clonal diversity, and thus likely inbr...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182003004207
更新日期:2004-01-01 00:00:00
abstract::In the context of a broader program dealing with the symbiotic associations of apple snails, we sampled three species that coexist in Lake Regatas (Palermo, Buenos Aires, Argentina). The population of Asolene platae, (but not those of Pomacea canaliculata and Pomacea scalaris) showed trematode larvae (echinocercariae ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182019000027
更新日期:2019-06-01 00:00:00
abstract::BALB/c mice were characterized as more resistant to infection with Heligmosomoides polygyrus (Nematoda) than C57BL/6 mice based on lower establishment and survival during a primary infection and stronger protection induced by an immunizing regime. It was hypothesized, therefore, that C57BL/6 mice would be more heavily...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000059953
更新日期:1991-12-01 00:00:00
abstract::Part of Robert T. Leiper's (1881-1969) lasting legacy in medical helminthology is grounded on his pioneering work on schistosomiasis (Bilharzia). Having undertaken many expeditions to the tropics, his fascination with parasite life cycles typically allowed him to devise simple preventive measures that curtailed transm...
journal_title:Parasitology
pub_type: 传,历史文章,杂志文章
doi:10.1017/S0031182016000998
更新日期:2017-10-01 00:00:00
abstract::Within the genus Cryptosporidium 2 lineages have evolved, one adapted to the acid environment of the stomach and abomasum, the other comprising parasites that multiply in the small intestine. We tested whether the release of sporozoites from oocysts, a process known as excystation, is triggered by conditions which mim...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182007002922
更新日期:2007-10-01 00:00:00
abstract:SUMMARY:Clinical isolates from 3 microsporidia species, Encephalitozoon intestinalis and Encephalitozoon hellem, and the insect parasite Anncaliia (Brachiola, Nosema) algerae, were used in spore germination and enterocyte-like (C2Bbe1) cell infection assays to determine the effect of a panel of antimicrobial peptides. ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182008005313
更新日期:2009-02-01 00:00:00
abstract::The evolution of host specificity and the potential trade-off between being a generalist and a specialist are central issues in the evolutionary ecology of parasites. Different species of parasites or even different populations of the same species often show different degrees of host specificity. However, less is know...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182009991107
更新日期:2010-02-01 00:00:00
abstract::A cDNA encoding a beta-galactoside-binding lectin (galectin) was identified by immunoscreening a Haemonchus contortus cDNA library with antisera from lambs vaccinated with a membrane protein complex (H-gal-GP) derived from the parasites' gut. The cDNA sequence, exhibiting a tandem repeat structure and designated Hco-g...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s003118209900503x
更新日期:1999-11-01 00:00:00
abstract::Essential oils (EOs) are considered a new class of ecological products aimed at the control of insects for industrial and domestic use; however, there still is a lack of studies involving the control of fleas. Ctenocephalides felis felis, the most observed parasite in dogs and cats, is associated with several diseases...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182019001641
更新日期:2020-03-01 00:00:00
abstract::Trichinella spiralis infections may lead to the loss of behavioural dominance among male mice. Reversals of dominance order first appear at the time when newborn larvae are released into the circulation of the host. The duration of dominance reversals bears no relationship to the number of muscle larvae harboured. ...
journal_title:Parasitology
pub_type: 杂志文章
doi:
更新日期:1984-04-01 00:00:00
abstract::Chemotactic responses of Strongyloides stercoralis infective larvae (L3) to sodium chloride (NaCl) were investigated by recording larval tracks on a saline gradient in agarose. On agarose, larvae migrated randomly, whereas when placed at 0.01 m NaCl larvae moved to approximately 1.1 m NaCl where they turned, headed do...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182003003433
更新日期:2003-08-01 00:00:00
abstract::Acetylcholinesterase (AChE) is present in all stages of the life-cycle of schistosomes and is located in muscle and on the surface of the parasite. Metrifonate is a drug that inhibits AChE. We compared the AChEs from three schistosome species (Schistosoma mansoni, Schistosoma haematobium and Schistosoma bovis) that ha...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000068244
更新日期:1994-02-01 00:00:00
abstract::Intestinal diarrheagenic polyparasitic infections are among the major public health concerns in developing countries. Here we examined stool specimens by microscopy, DNA dot blot and polymerase chain reaction (PCR) to evaluate the co-infection of four principal protozoans among amoebic dysentery cases from Northeast I...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182015000669
更新日期:2015-09-01 00:00:00
abstract::High throughput technologies continue to develop in response to the challenges set by the genome projects. This article discusses how the techniques of both high throughput screening (HTS) and synthesis can influence research in parasitology. Examples of the use of targeted and phenotype-based HTS using unbiased compo...
journal_title:Parasitology
pub_type: 杂志文章,评审
doi:10.1017/S0031182004007073
更新日期:2004-01-01 00:00:00
abstract::Intra-erythrocytic stages of malaria parasites can alter the surface of their host cells and release toxins which induce the production of cytokines, which in turn can up- or down-regulate the expression of adhesion receptors on the surface of microvascular endothelial cells. New adhesion receptors on endothelial cell...
journal_title:Parasitology
pub_type: 杂志文章,评审
doi:10.1017/s0031182097002345
更新日期:1997-01-01 00:00:00
abstract::Leishmania braziliensis strain M2903 was adapted for growth and serially maintained as amastigotes at 34 degrees C in modified UM-54 medium, with growth curves exhibiting typical log and stationary phases. In late passages, amastigote growth took place in the absence of supplementary haemin and was unaffected when the...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s003118209700214x
更新日期:1998-02-01 00:00:00
abstract::Serology is an important tool for the diagnosis of alveolar echinococcosis (AE) in humans. In order to improve serodiagnostic performance, we have developed an in vitro-produced Echinococcus mulilocularis metacestode vesicle fluid (EmVF) antigen for application in an immunoblot assay. Immunoblot analysis of EmVF revea...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182006002083
更新日期:2007-06-01 00:00:00
abstract::The nematode-trapping fungus Arthrobotrys oligospora traps and invades all the free-living juvenile stages of the trichostrongyle nematode Trichostrongylus colubriformis. The processes of capture and invasion of the 1st-stage juveniles are described using differential interference contrast optics and 3-D reconstructio...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000079798
更新日期:1990-08-01 00:00:00
abstract::A molecular approach was used to genetically characterize 5 species (Aoruroides queenslandensis, Blattophila sphaerolaima, Cordonicola gibsoni, Desmicola ornata and Leidynemella fusiformis) belonging to the superfamily Thelastomatoidea (Nematoda: Oxyurida), a group of pinworms that parasitizes terrestrial arthropods. ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182006009978
更新日期:2006-07-01 00:00:00
abstract::Toxoplasma gondii has a unique enzyme, a NTPase, which has a wide specificity toward NTP. In the present study, we produced a monoclonal antibody (IgG1, 6C6) against the enzyme which could recognize NTPase isozymes among several strains of T. gondii. Three avirulent strains of T. gondii, ME49, Beverley and Nakayama, w...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000007101
更新日期:2001-01-01 00:00:00
abstract::Cyst fluid (CF) of Taenia solium metacestode (TsM) is an important source of serodiagnostic antigens. We have investigated the molecular characteristics of the 120 kDa protein complex in TsM CF purified by fast performance liquid chromatography. The structure of the purified protein was characterized by a variety of p...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182005008504
更新日期:2005-12-01 00:00:00
abstract::Neospora caninum infection is a significant cause of abortion in cattle. We investigated the tissue distribution of N. caninum in aborted bovine fetuses and dam blood samples by a nested PCR assay, and compared the nested PCR with ELISA in the diagnosis of N. caninum infection. In total, 26 aborted fetuses and 813 blo...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182009990813
更新日期:2009-09-01 00:00:00
abstract::It is suspected that host-parasite interactions are influenced by climatic oscillations such as the North Atlantic Oscillation (NAO). However, the effects of climatic oscillations on host-parasite interactions have never been investigated. A long-term (1982-1999) dataset of the host snail Lymnaea stagnalis and tremato...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182011000655
更新日期:2011-07-01 00:00:00
abstract::The biodiversity of Trypanosoma cruzi is one of the main factors complicating the understanding of its molecular epidemiology. As an alternative to classical genetic methods, investigators have used DNA-mediated transformation techniques to study this diversity. Recently, transient expression data were shown to correl...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182099005053
更新日期:1999-12-01 00:00:00
abstract::Theileria annulata infects and reversibly transforms bovine leucocytes. The parasite-transformed cells are immortalized, metastatic and express a number of metalloproteinases including matrix metalloproteinase 9 which they secrete. All the metalloproteinases observed on substrate gels are inhibited by tissue inhibitor...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000081518
更新日期:1996-11-01 00:00:00
abstract::Humans and other hosts acquire Toxoplasma gondii infection by ingesting tissue cysts in undercooked meat, or by food or drink contaminated with oocysts. Currently, there is no vaccine to prevent clinical disease due this parasite in humans, although, various T. gondii vaccine candidates are being developed. Mice are g...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182011001673
更新日期:2012-01-01 00:00:00