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| Registros recuperados: 13 | |
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| Le Gourrierec, Gaétane. |
| En aquaculture, sur une cinquantaine d'algues testées, seulement une douzaine présente un réel intérêt en écloserie-nurserie de bivalves (Chrétiennot-Dinet et al, 1986). Le premier but de notre travail est de caractériser 11 espèces de microalgues au cytomètre en flux afin de fournir un outil descriptif, facilement réutilisable, de ces espèces et d' évaluer l' influence de l'état physiologique et de la méthode de fixation sur les signatures cytométriques. Les paramètres mesurés au cytomètre en flux sont la FSC, la FL3 et la SSC liées respectivement à la taille, la fluore scence et la structure des cellules phytoplanctoniques. Les résultats montrent que les signatures sont extrêmement variables entre espèces et à l' intérieur d' une espèce. Seules, deux... |
| Tipo: Text |
Palavras-chave: Microalgues; Cytométrie en flux; Caractérisation; Viabilité cellulaire; Larves d'huîtres. |
| Ano: 2002 |
URL: https://archimer.ifremer.fr/doc/00448/55962/57446.pdf |
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| Le Chevanton, Myriam. |
| The use of algae-bacteria mixed culture has been suggested to improve performance of industrial microalgae culture. The present study aims to investigate impact of selected bacteria on Dunaliella sp. growth. 97 bacteria strains were isolated from a variety of marine microalgae cultures. The diversity of strains revealed members of α-and γ-proteobacteria, Cytophaga-Flavobacterium-Bacteroides and grampositive. A two-phase approach was then implemented to select bacteria that improve Dunaliella sp. growth, using an original high-throughput experimental device. Although a majority of bacteria induced performance reduction for Dunaliella sp., some resulted in significant improvements. In nitrogenlimited batch culture, the Alteromonas sp. bacteria demonstrated a... |
| Tipo: Text |
Palavras-chave: Interactions; Microalgues; Bactéries; Dunaliella; Axénie; Interactions; Microalgae; Bacteria; Dunaliella; Axenic. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00187/29839/28291.pdf |
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| Mondeguer, Florence. |
| Metabolomics is a new approach to assess the contamination of organisms, environmental compartments or foodstuffs, and the impact marine pollution, (natural or anthropogenic), can have on them. Through the analysis of the variation of the metabolite profiles present in the cell, tissues, organs or even the whole organism it is possible to define a physiological state, a stage of development, or the level and nature of a contamination. Generally, analysis of metabolites correlates to experimental design built around a clear biological or environmental question, needs to be supported by sensitive and reproducible tools, and requires access to libraries "house" or international. Often, the non-targeted approach allows for evaluation of many hypotheses. Thus,... |
| Tipo: Text |
Palavras-chave: Biotoxines; Biomarqueurs; Métabolomique; Microalgues; Moules; Spectrométrie de masse haute résolution (HRMS); Workflow. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00358/46892/46777.pdf |
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| Muller-feuga, Arnaud. |
| Industrial potentialities related to biotechnology of microalgae are examined, highlighting a wide spectrum of applications which concern principally nutrition, health, environment and energy. The french situation of research on microalgae, especially at Ifremer, is assessed, showing that the main axis are fine chemistry, aquaculture, environment, bio-process engineering. It covers the majority of the applications, but leaves in shade certain important aspects such as human food and CO2 fixation. Concerning the general approach, some significant improvements can be expected from a more accurate control of bacteriological and genetic quality of cultures. About the industrial aspects, a national initiative seems in progress. The variety of potential... |
| Tipo: Text |
Palavras-chave: Process engineering; Energy; Environment; Health; Food; Aquaculture; Biotechnology; Microalgae; Génie des procédés; Energie; Environnement; Santé; Alimentation; Aquaculture; Biotechnologie; Microalgues. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/rapport-1092.pdf |
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| Burgeot, Thierry; Fillon, Alain; Ratiskol, Gilles; Vayne, Jean-jacques. |
| La synthèse des informations collectées en 1988 en Charente Maritime, en matière de développement microalgaux a pour but de mettre en évidence, à partir des données recueillies au cours d'une année, des tendances et niveaux de contaminations phytoplanctoniques, ainsi qu'une certaine identité du secteur surveillé. L'année 1988 est marquée par une efflorescence monospécifique de Gymnodinium sp. en période estivale et par l'apparition du Dinophysis à des concentrations supérieures au seuil toxique sans qu'aucne toxicité ne soit décelée. Le réseau de suivi confirme, à travers la bonne représentativité des stations de prélèvement, la spécificité des pertuis charentais |
| Tipo: Text |
Palavras-chave: Microalgues; Pertuis charentais; Efflorescences monospécifiques. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00443/55496/57039.pdf |
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| Robert, Rene; Parisi, Guilina; Pastorelli, Roberta; Poli, Bianca Maria; Tredici, Mario. |
| In an attempt to provide cost-effective alternatives to live microalgae and to simplify hatchery-nursery procedures, concentrated microalgae appear to be very promising. Due to its high preservation ability, Prasinophytes appear to be good candidates for such alternative diets. Nevertheless, in a previous study the utilization of Tetraselmis suecica was only conceivable for old Crassostrea gigas larvae. In the present work its nutritional quality has been accordingly searched on ]apanese oyster's juveniles. Whatever the assemblages and condition, fresh or preserved microalgae, T. suecica did not allow an adequate postlarval development in C. gigas. |
| Tipo: Text |
Palavras-chave: Nutritional quality; Crassostrea gigas; Tetraselmis suecica; Microalgae; Valeur alimentaire; Crassostrea gigas; Tetraselmis suecica; Microalgues. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/publication-6202.PDF |
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| Registros recuperados: 13 | |
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