Results 11 to 20 of about 2,488 (156)

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

New Phytol, 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
Gain G, Vega de Luna F, Cordoba J, Perez E, Degand H, Morsomme P, Thiry M, Baurain D, Pierangelini M, Cardol P.   +9 more
europepmc   +2 more sources

A Mitochondrially Related Plastidial Transporter Regulates Photosynthesis in the Diatom Phaeodactylum tricornutum. [PDF]

Physiol Plant
ABSTRACT Eukaryotic phototrophs depend on the activity of two engines (the plastid and the mitochondrion) to generate the energy required for cellular metabolism. Because of their overlapping functions, both activities must be closely coordinated. At the plastid level, optimisation occurs through alternative electron transport, the diversion of excess ...
Giustini C, Dal Bo D, Storti M, Van Vlierberghe M, Baurain D, Cardol P, Zhang Y, Fernie AR, Fitzpatrick D, Aro EM, Allorent G, Albanese P, Tolleter D, Curien G, Finazzi G.   +14 more
europepmc   +2 more sources

DiatOmicBase: a versatile gene-centered platform for mining functional omics data in diatom research. [PDF]

Plant J
SUMMARY Diatoms are prominent microalgae found in all aquatic environments. Over the last 20 years, thanks to the availability of genomic and genetic resources, diatom species such as Phaeodactylum tricornutum and Thalassiosira pseudonana have emerged as valuable experimental model systems for exploring topics ranging from evolution to cell biology ...
Villar E, Zweig N, Vincens P, Cruz de Carvalho H, Duchene C, Liu S, Monteil R, Dorrell RG, Fabris M, Vandepoele K, Bowler C, Falciatore A.   +11 more
europepmc   +2 more sources

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

New Phytol, 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
Pierangelini M, Thiry M, Cardol P.
europepmc   +2 more sources

Evaluation of alkenones, a renewably sourced, plant-derived wax as a structuring agent for lipsticks. [PDF]

Int J Cosmet Sci, 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 ...
Huynh A, Maktabi B, Reddy CM, O'Neil GW, Chandler M, Baki G.   +5 more
europepmc   +2 more sources

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

Weak acids produced during anaerobic respiration suppress both photosynthesis and aerobic respiration

Nature Communications, 2023
While photosynthesis transforms sunlight energy into sugar, aerobic and anaerobic respiration (fermentation) catabolizes sugars to fuel cellular activities.
Xiaojie Pang, Wojciech J. Nawrocki, Pierre Cardol, Mengyuan Zheng, Jingjing Jiang, Yuan Fang, Wenqiang Yang, Roberta Croce, Lijin Tian   +8 more
doaj   +1 more source

Evolution annuelle du peuplement zooplanctonique dans un lagunage à haut rendement et incidence du temps de séjour [PDF]

, 1991
Proposé au début des années soixante par W.J. OSWALD, le lagunage dit « à haut rendement », utilisé pour l'épuration d'eaux usées domestiques, représente un écosystème hypereutrophe.
Bontoux, J., Canovas, S., Cassellas, C., Pena, G., Picot, B.   +4 more
core   +1 more source

Les microalgues marines : source alternative d’acide eicosapentaènoïque (EPA) et d’acide docosahexaènoïque (DHA)

Oléagineux, Corps gras, Lipides, 2004
Les lipides de microalgues marines sont riches en acide eicosapentaènoïque (EPA, C20 :5) et en acide docosahexaènoïque (DHA, C22 :6), deux acides gras hautement insaturés de la série ω3 (AGHI-ω3), et représentent aujourd’hui une source alternative ...
Pencreac’h Gaëlle, Devos Marie, Poisson Laurent, Herault Josiane, Loiseau Céline, Ergan Françoise   +5 more
doaj   +1 more source

Alternative Photosynthetic Electron Transfers and Bleaching Phenotypes Upon Acute Heat Stress in Symbiodinium and Breviolum spp. (Symbiodiniaceae) in Culture

Frontiers in Marine Science, 2019
The breakdown of the symbiosis between cnidarians and Symbiodiniaceae often occurs upon periods of elevated sea surface temperature and gives rise to bleaching events that affect coral reefs worldwide.
Kieu Van Dang, Mattia Pierangelini, Stéphane Roberty, Pierre Cardol   +3 more
doaj   +1 more source