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	Provedor de dados ArchiMer (2) Autor Arancio, Marc (1) Audic, Stephane (1) Berney, Cedric (1) Chambouvet, Aurelie (1) De Vargas, Colomban (1) Maguire, Finlay (1) Richards, Thomas A. (1) Romac, Sarah (1) Mais... Palavra-chave Parvilucifera (2) 454 pyrosequencing (1) Amoebophrya (1) Cycles biologiques -- Modèles mathématiques (1) Dinoflagellés -- Mouvements (1) Dinoflagellés -- Parasites (1) Food web (1) Parasite (1) Perkinsus (1) Phytoplancton (1) Protist (1) Relations hôte-parasite (1) Succession écologique (1) Symbiose (1) Écologie des estuaires (1) Mais... Tipo do documento Text (2) Ano 2014 (2) País France (2) Idioma Francês (1) Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Diverse molecular signatures for ribosomally 'active' Perkinsea in marine sediments ArchiMer Chambouvet, Aurelie; Berney, Cedric; Romac, Sarah; Audic, Stephane; Maguire, Finlay; De Vargas, Colomban; Richards, Thomas A.. Background: Perkinsea are a parasitic lineage within the eukaryotic superphylum Alveolata. Recent studies making use of environmental small sub-unit ribosomal RNA gene (SSU rDNA) sequencing methodologies have detected a significant diversity and abundance of Perkinsea-like phylotypes in freshwater environments. In contrast only a few Perkinsea environmental sequences have been retrieved from marine samples and only two groups of Perkinsea have been cultured and morphologically described and these are parasites of marine molluscs or marine protists. These two marine groups form separate and distantly related phylogenetic clusters, composed of closely related lineages on SSU rDNA trees. Here, we test the hypothesis that Perkinsea are a hitherto under-sampled... Tipo: Text Palavras-chave: 454 pyrosequencing; Perkinsus; Parvilucifera; Food web; Protist; Parasite. Ano: 2014 URL: https://archimer.ifremer.fr/doc/00374/48496/48830.pdf Etude théorique des interactions entre des dinoflagellés et des parasitoïdes eucaryotes en environnement mélangé : persistance du système et succession phytoplanctonique ArchiMer Arancio, Marc. Many species of autotrophic dinoflagellates can be parasitized by multiple eukaryotic parasitoids. These parasitoids have a specific life cycle resulting in the death of the host and the release of hundreds of zoospores that can infect a new host. Several studies have demonstrated their potential to control the host population in a few days as well as their great diversity and suggests a very complex dynamics of infection in this kind of environment. The objective of this thesis is to understand the parasitoid-dinoflagellates infection dynamics in a highly mixed estuary and a better understanding of the different interactions taking place within this system. To address this problem, we used the modeling approach (IBM). This approach has enabled to show... Tipo: Text Palavras-chave: Amoebophrya; Parvilucifera; Relations hôte-parasite; Dinoflagellés -- Parasites; Dinoflagellés -- Mouvements; Symbiose; Succession écologique; Cycles biologiques -- Modèles mathématiques; Écologie des estuaires; Phytoplancton. Ano: 2014 URL: https://archimer.ifremer.fr/doc/00498/60942/64335.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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