(1) The faeces of forty-two were examined microscopically for nematode eggs.
(2) The propionyl-CoA condensing enzyme which catalyzes the first step in the biosynthesis of 2-methylbutyrate and 2-methylvalerate by Ascaris muscle appears to exist in at least three forms in the mitochondria of this parasitic nematode.
(3) Haematological and blood biochemical changes in the sheep, as well as fecundity of gastrointestinal nematodes, suggested the hosts were immunosuppressed.
(4) We have studied the organization of microtubules in neurons of the nematode Caenorhabditis elegans.
(5) At the external wall of the host's gut, parasitic cysts of this nematode with immature stages inside were also observed.
(6) Mice (C57BL) infected with the intestinal nematode Nematospiroides dubius showed depressed delayed type hypersensitivity responses to ovalbumin administered subcutaneously in Freund's complete adjuvant.
(7) Additionally, both nematode enzymes acetylated histamine, whereas dopamine and serotonin were not accepted as substrates.
(8) The study design of a project to investigate the epidemiology, population dynamics and control of intestinal nematode infections in fishing village communities in Southern India is described.
(9) Two control trials were conducted against Ae.samoanus larvae in Pandanus, one using a sand culture of the parasitic nematode Romanomermis culicivorax and the other with temephos, an organophosphate insecticide.
(10) Lesions associated with Philometroides huronensis in the white sucker (Catostomus commersoni) of southern Ontario occurred during the spring (April-June) and were related to the development and release of first-stage larvae from the gravid nematode.
(11) Hypoproteinaemia, attributed to serum albumin loss, was demonstrated seven weeks after infection, but this was not associated with the interaction of Cu deficiency and nematode infection.
(12) Five cases shown to be positive by traditional methods were negative in the agar plate method, and it was necessary to discriminate Strongyloides microscopically from other similar nematode larvae, especially in an area, such as northern Thailand, with a high prevalence of hookworms.
(13) Using bronchoalveolar lavage (BAL) we have retrieved soluble proteins and cells from the respiratory tract of rats given a primary or secondary infection with the nematode Nippostrongylus brasiliensis.
(14) Specific binding sites for ivermectin (IVM; 22,23-dihydroavermectin-B1) were identified and characterized in a crude membrane fraction prepared from the nematode, Caenorhabditis elegans (C. elegans).
(15) The association of SL-RNA and 5S rRNA genes in tandemly repeated units is also found in nematodes but paradoxically does not exist in trypanosomes which are phylogenically much closer to Euglena.
(16) We sought genes defining synaptic specificity by identifying mutations that alter synaptic connectivity in the motor circuitry in the nematode C. elegans.
(17) The nematode T. spiralis can survive for tens of years within the cytoplasm of the Nurse cell and secretes proteins into the cytoplasm that are believed to play a role in mediating the Nurse cell formation or maintenance.
(18) The nematodes infecting children by the oral way have a maximal incidence at the age of 3 to 6 years.
(19) A survey of gastrointestinal nematodes in Georgia cattle was conducted from 1968 through 1973 from actual worm counts from viscera of 145 slaughtered beef cattle or from egg counts made from fecal samples from 3,273 beef and 100 dairy cattle.
(20) This diversity is illustrated by a comparison of sex determination in three well-studied model organisms: the fruitfly Drosophila melanogaster, the nematode Caenorhabditis elegans, and the mouse.
Phylum
Definition:
(n.) One of the larger divisions of the animal kingdom; a branch; a grand division.
Example Sentences:
(1) This work extends the finding of proctolin-like substances to the annelid phylum.
(2) Because ctenophore and all other known metazoan mtDNA is circular, the shared occurrence of linear mtDNA in three of the four cnidarian classes suggests a basal position for the Anthozoa within the phylum.
(3) The nervous systems of the scyphomedusae Chrysaora hysoscella, Cyanea capillata and Cyanea lamarckii (Phylum Cnidaria) were stained using an anti-serum against the anthozoan neuropeptide Antho-RFamide.
(4) All organisms tested responded to ether and short-chain alkanols, but pregnanolone affected only organisms belonging to the phylum Chordata.
(5) In so doing one can isolate compounds with novel structures or unsuspected activities from almost any phylum, including tunicates, sponges, insects, or even the much-studied terrestrial plants, as exemplified in several recent studies in our laboratory involving activities ranging from antiviral and antimicrobial activity to cytotoxicity and immunomodulation.
(6) The phylum Sporozoa comprises three large distinct groups of organisms as follows: Perkinsemorpha, Gregarinomorpha and Coccidiomorpha.
(7) S. muris and Theileria annulata belong to the phylum Apicomplexa, but the latter organism is a tick-borne protozoon in the subclass Piroplasmea and causes tropical theileriosis in cattle.
(8) Sporozoan zoites contain specific organelles that are involved in host cell invasion, a process highly conserved within this phylum.
(9) The chromatrope pigment of Mermis nigrescens (Phylum: Aschelminthes, Class: Nematoda) was previously thought to have a role in photoreception.
(10) We examine geographic and language patterning by grouping tribes by culture area and language phylum.
(11) We sequenced the 3'-terminal part of the COX3 gene encoding cytochrome c oxidase subunit 3 from mitochondria of Phytophthora parasitica (phylum Oomycota, kingdom Protoctista).
(12) It differs from other species in the phylum in that each secondary cell produces a single spore composed of two concentric cells, one within a vacuole of the other.
(13) They, along with the more numerous micronemes and dense granules, constitute the apical complex in Plasmodium and other members of the phylum Apicomplexa.
(14) If so, the Archamoebae are the most primitive extant phylum of eukaryotes; if molecular phylogenetic studies confirm this idea, Archamoebae will deserve intensive study, which could reveal much about the origin of the eukaryote condition and also establish what is truly universal among eukaryotes.
(15) The immunoreactivity of this paraprotein with apo B and apo E raises the interesting possibility that it may be binding to a site on these apolipoproteins which is reactive with the apo B, E receptor of the plasma membrane, a site which is conserved throughout the vertebrate phylum.
(16) Twenty-two sterols were identified in the starfish Asterias rubens (Phylum, Echinodermata; Class, Asteroidea).
(17) There are protozoans having simultaneously no flagelles, mitochondria and chloroplasts (all the representatives of phylum Microspora, amoeba Pelomyxa palustris, and others).
(18) The results suggest that C. reinhardtii diverged from higher plants approximately 700-750 million years ago; they also are not easy to reconcile with the current attribution of Chlamydomonas reinhardtii and Enteromorpha intestinalis to a unique phylum, because these two species probably diverged from one another at about the same time as they diverged from the line leading to higher plants.
(19) Prostaglandin A2 and its ester derivatives comprise as much as 8% of the wet tissue weight of some octocoral species such as Plexaura homomalla (phylum Cnidaria, class Anthozoa, subclass Octocorallia).
(20) Two different waves of migration settled in the Highlands of New Guinea between 10,000 and 15,000 years ago, and it is possible that the Watut, an Angan speaking group, represents the remnants of the first migration into the interior, whereas the Asaro, members of the Eastern Central family of the Trans-New Guinea phylum, arrived at a later date.