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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 35 for “"Anemone"”.
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Behind anemone lines: determining the environmental drivers influencing lagoonal benthic communities, with special reference to the anemone Nematostella vectensis.
… pipes. The non-native protected Starlet Sea Anemone Nematostella vectensis was also significantly negatively correlated with organic matter and silt content. It is known to be sensitive to hypoxic-sulfidic conditions associated with high organic matter sediments. The anemone’s indiscriminate …
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HISTOLOGICAL RESPONSES OF THE SEA ANEMONE A. PALLIDA TO BLEACHING INDUCING STRESSES
… For this purpose, we worked with the sea anemone model A. pallida in which we analyzed the incorporation of a thymidine analogue (EdU). After preliminary experiments assessing the general repartition and the circadian variations of cellular proliferation in healthy specimens, we conducted …
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Chemoreceptors Regulate Discharge of Microbasic p-mastigophores in the Sea Anemone, AIPTASIA PALLIDA
… cnida discharge on the tentacles of the sea anemone, Aiptasia pallida. These two classes of receptors were shown to interact with glycine and N-acetylneuraminic acid (NANA). We now show that the discharge of the microbasic p-mastigophores, one of the three types of cnidae present on the …
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The Roles of Ca2+ and cAMP in the Nematocyst Discharge of the Sea Anemone Tentacle
… aquatic animals, including jellyfish, hydra, sea anemones, and corals. They are the simplest metazoans having a nervous system and are diploblastic. Cnidarians are obligate predators that capture prey using specialized stinging cells called cnidocytes. The cnidocyte contains a nematocyst, which is …
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An ultrastructural study of gametogenesis and early development in the sea anemone <i>Actinia fragecea</i> (Cnidaria : Anthozoa)
Large Individuals of the sea anemone <i>Actinia fragacea</i> were collected at approximately monthly intervals over a two year period. Their gonads were examined by light and electron microscopy, in order to follow the gametogenic process. The sexes are separate, and both show an annual cycle of …
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CRSPR manipulation and nutritional status reveal functions of transcription factor NF-kappaB in the sea anemone Nematostella vectensis
… NF-κB signaling is characterized in the sea anemone Nematostella vectensis, a commonly used model in the phylum Cnidaria. By RNA-seq analysis, a positive correlation between nutrition and immunity is shown in Nematostella. Gene expression profiling of adult fed and starved anemones showed …
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Characterisation of Nitric Oxide Synthase Activity in the Sea Anemone Aiptasia pallida and an Evaluation of Responses to Environmental Stress
… was nevertheless demonstrated in the sea anemone A. pallida, in the zooxanthellae associated with A. pallida, Symbiodinium spp. and in five scleractinian coral species. Preliminary studies were conducted to characterise NOS from A. pallida. NOS activity of this species was shown to be …
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Introducing the starlet sea anemone Nematostella vectensis as a model for investigating microbial mediation of health and disease in hexacorals
… an emerging Cnidarian model, the starlet sea anemone Nematostella vectensis, to investigate whether hexacorals maintain communities of beneficial microbes. I hypothesize that loss of this beneficial community by environmental perturbations will negatively impact the physiology of the host. As …
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Examination of the nematostella vectensis holobiont by comparative bacterial genomics and metatranscriptomics
… populations are associated with the starlet sea anemone Nematostella vectensis over distinct temporal and geographic locations; however, the functions these bacteria may be performing within their anemone hosts and the mechanisms with which the bacteria may be using to adapt are unknown. To …
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Feeding biology of intertidal sea anemones in the south-western Cape
… abundance and distribution of intertidal sea anemone assemblages were investigated by means of line-transects at two sites on the Cape Peninsula - Wooley's Pool in False Bay and Blouberg in Table Bay. A single species, Bunodactis reynaudi dominated at Blouberg (average density 901 running …
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Nemo no more? Spatial demographic and population genetic analyses of the two-band anemonefish, Amphiprion bicinctus, in the Gulf of Eilat, Red Sea
Anemonefishes' obligatory mutualism with sea anemones dictates their occurrence on coral reefs. I examined spatial distribution, settlement, habitat usage, and survival patterns of the two-band anemonefish, Amphiprion bicinctus. In a 300 X 30 m study site off the coast of Israel in the Gulf of …
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Pigments and Neurogenic Secretions of Dermasterias Imbricata
… that evokes the swimming response in the sea anemone Stomphia coccinea was attempted. Although the compound was not identified, it was postulated to be a low molecular weight highly polar molecule of possible carbohydrate origin.
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Neue integrative Ansätze für das Sammeln, Bearbeiten und Beschreiben skelettloser Hexacorallia am Beispiel chilenischer Seeanemonen
… dissertation and exemplified by Chilean sea anemones. The results have been presented in specialist journals and at relevant meetings. To fill existing gaps and to alleviate difficulties, traditional procedures have been combined with modern methods. The applied techniques were tested for …
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The hyperbolic lattice : morphology, kinematics, and potential applications
… bodied organisms such as the worm and the sea anemone were observed to better understand the kinetic models being made. A unifying theme of this study has been an interest in the correlation of form, mobility and structural behavior.
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Connectome and Ultrastructural Studies of an Anthozoan Planula: Exaiptasia diaphana
… the first neuronal circuits functioned. The sea anemone Exaiptasia diaphana, a cnidarian and sister group to all bilaterians, holds a key position for comparative studies. Alongside ctenophores, cnidarians are the only non-bilaterian phyla with a nervous system. Here, I present the first …
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ΒΙΟΝΟΜΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΘΑΛΑΣΣΙΩΝ ΑΝΕΜΩΝΩΝ (ACTINIARIA, ANTHOZOA) ΤΟΥ ΘΕΡΜΑΙΚΟΥ ΚΟΛΠΟΥ
… GULF REVEALED THE PRESENCE OF 15 SPECIESOF SEA ANEMONES. NINE OF THE FIFTEEN SPECIES FOUND, ARE REPORTED FOR THE FIRSTTIME FROM THE EASTERN MEDITERRANEAN AND ONE FROM THE AEGEAN SEA. ACCORDING TO THE SELECTIVE PREFERENCE SHOWED BY THE VARIOUS ANEMONE SPECIES TO VARIOUS TYPESOF SUBSTRATES, THEY …
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Kopplungsanalyse zur Lokalisation des genetischen Defektes in einer Fünf-Generationen-Familie mit variablem Immundefektsyndrom (CVID)
Das variable Immundefektsyndrom (Common Variable Immunodeficiency, CVID) ist die häufigste therapiebedürftige primäre Immundefizienz. Diese Diagnose wird bei einer heterogenen Gruppe von Individuen mit niedrigen Serumimmunglobulinkonzentrationen, defekter spezifischer Antikörperproduktion und einer …
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Genetic connectivity, adaptation, and phenotypic plasticity of corals and anemones under thermal stress
… This thesis aims to understand how corals and anemones respond to changing temperatures across different timescales and investigates mechanisms that can facilitate persistence in light of environmental change, from selection and adaptation across generations to phenotypic plasticity within a …
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