Results 11 to 20 of about 1,359 (106)

Les microalgues [PDF]

médecine/sciences, 2008
Extraction of natural substances and chemical synthesis are the main sources of pharmaceutical molecules. When possible, one may transfer the gene of the molecule in living cells creating individual factories producing on demand and in a safe way the requested molecule.
Jean-Paul Cadoret, Muriel Bardor, Patrice Lerouge, Morgan Cabigliera, Vitalia Henriquez, Aude Carlier   +5 more
openaire   +1 more source

Shifts in growth light optima among diatom species support their succession during the spring bloom in the Arctic

Journal of Ecology, Volume 110, Issue 6, Page 1356-1375, June 2022., 2022
Our results suggest that Arctic diatoms species photoadaptation strategy is tuned to the light environment of the habitats in which they dominate and indeed drives the seasonal taxonomic succession. Abstract Diatoms of the Arctic Ocean annually experience extreme changes of light environment linked to photoperiodic cycles and seasonal variations of the
Dany Croteau, Thomas Lacour, Nicolas Schiffrine, Philippe‐Israël Morin, Marie‐Hélène Forget, Flavienne Bruyant, Joannie Ferland, Augustin Lafond, Douglas A. Campbell, Jean‐Éric Tremblay, Marcel Babin, Johann Lavaud   +11 more
wiley   +1 more source

Trophic state alters the mechanism whereby energetic coupling between photosynthesis and respiration occurs in Euglena gracilis

New Phytologist, Volume 232, Issue 4, Page 1603-1617, November 2021., 2021
Summary The coupling between mitochondrial respiration and photosynthesis plays an important role in the energetic physiology of green plants and some secondary‐red photosynthetic eukaryotes (diatoms), allowing an efficient CO2 assimilation and optimal growth. Using the flagellate Euglena gracilis, we first tested if photosynthesis–respiration coupling
Gwenaëlle Gain, Félix Vega de Luna, Javier Cordoba, Emilie Perez, Hervé Degand, Pierre Morsomme, Marc Thiry, Denis Baurain, Mattia Pierangelini, Pierre Cardol   +9 more
wiley   +1 more source

Different levels of energetic coupling between photosynthesis and respiration do not determine the occurrence of adaptive responses of Symbiodiniaceae to global warming

New Phytologist, Volume 228, Issue 3, Page 855-868, November 2020., 2020
Summary Disentangling the metabolic functioning of corals' endosymbionts (Symbiodiniaceae) is relevant to understanding the response of coral reefs to warming oceans. In this work, we first question whether there is an energetic coupling between photosynthesis and respiration in Symbiodiniaceae (Symbiodinium, Durusdinium and Effrenium), and second, how
Mattia Pierangelini, Marc Thiry, Pierre Cardol   +2 more
wiley   +1 more source

Evaluation of alkenones, a renewably sourced, plant‐derived wax as a structuring agent for lipsticks

International Journal of Cosmetic Science, Volume 42, Issue 2, Page 146-155, April 2020., 2020
In this study, a green, non‐animal derived wax, namely alkenones, sourced from marine microalgae was formulated into lipsticks and evaluated as a structuring agent and compared to microcrystalline wax, ozokerite and candelilla wax. Overall, the lipstick with 7% of alkenones (L4) in combination with microcrystalline wax, ozokerite and carnauba wax was ...
An Huynh, Briana Maktabi, Christopher M. Reddy, Gregory W. O’Neil, Mark Chandler, Gabriella Baki   +5 more
wiley   +1 more source

Modalités de contamination du crustacé planctonique Daphnia magna Straus avec le 134Cs. Etudes de la fixation et de la rétention [PDF]

, 1992
Une étude concernant le transfert du césium radioactif dans une chaîne trophique simplifiée d'eau douce, a été réalisée dans le cadre des Contrats (CCE) n° BI6-B-198-P et n° BI6-0245-P.
Corsico, J. A. Gil, Vaz Carreiro, M. G.
core   +1 more source

Premier rapport sur la prolifération de marées jaunes ichthyotoxiques à Prymnesium parvum Carter (Haptophyceae) dans le lac hypereutrophe Oued Mellah (Maroc) [PDF]

, 2002
Les algues Prymnesiophyceae ou Haptophyceae (Chrysophyta) renferment des espèces capables de pullulations spectaculaires nommées " marées jaunes ".
Chlaida, M., Fadlaoui, S., Fawzi, B., Loudiki, M., Oubraim, S., Oudra, B., Sabour, B.   +6 more
core   +1 more source

Détermination du niveau de toxicité des sédiments de rivière par le test de bioluminescence bactérienne [PDF]

, 1991
A partir de références bibliographiques encore réduites, les auteurs ont mis au point un protocole expérimental d'évaluation de la toxicité des sédiments de rivière, après extraction au dichlorométhane et mesure de la toxicité par le lest de ...
Bonnefille, M., Larbaitgt, G., Peyre, D., Tabonet, A.   +3 more
core   +1 more source

Growth and metal uptake of microalgae produced using salt groundwaters from the Bay of Bourgneuf [PDF]

, 2006
International audienceThe Bay of Bourgneuf, France, is a main site of shellfish production. In the marshes along the bay, oyster intensive rearing and fattening need the mass production of microalgae.
Bustamante, Paco, Cosson, Richard,, Gagneux-Moreaux, Sindy, Moreau, Christophe   +3 more
core   +3 more sources

Les microalgues, promesses et défis.

, 2013
Les microalgues suscitent aujourd’hui un intérêt grandissant tant les applications qui convergent autour de ces cellules sont nombreuses. De la production d’énergie à la nutrition humaine et animale, en passant par le traitement des rejets anthropiques, chercheurs et industriels s’investissent dans ces vastes domaines d’application.
Sialve, Bruno, Steyer, Jean-Philippe
openaire   +4 more sources