Search Results - "Gall, Erwan Ar"

Induction of Phlorotannins and Gene Expression in the Brown Macroalga Fucus vesiculosus in Response to the Herbivore Littorina littorea by Emeline, Creis Bendelac, Ludovic, Delage, Laurent, Vallet, Catherine, Leblanc, Kruse, Inken, Erwan, Ar Gall, Florian, Weinberger, Philippe, Potin

“…Mechanisms related to the induction of phlorotannin biosynthesis in marine brown algae remain poorly known. Several studies undertaken on fucoid species have…”
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Seaweed Habitats on the Shore: Characterization through Hyperspectral UAV Imagery and Field Sampling by Diruit, Wendy, Le Bris, Anthony, Bajjouk, Touria, Richier, Sophie, Helias, Mathieu, Burel, Thomas, Lennon, Marc, Guyot, Alexandre, Ar Gall, Erwan

“…Intertidal macroalgal habitats are major components of temperate coastal ecosystems. Their distribution was studied using field sampling and hyperspectral…”
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The microbiome of Codium tomentosum: original state and in the presence of copper by Le Pennec, Gaël, Gall, Erwan Ar

“…Codium tomentosum , as all organisms, hosts transiently and permanently numerous microorganisms. These holobionts can undergo environmental pressures…”
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Structure/Function Analysis of a Type III Polyketide Synthase in the Brown Alga Ectocarpus siliculosus Reveals a Biochemical Pathway in Phlorotannin Monomer Biosynthesis by Meslet-Cladière, Laurence, Delage, Ludovic, Leroux, Cédric J.-J., Goulitquer, Sophie, Leblanc, Catherine, Creis, Emeline, Gall, Erwan Ar, Stiger-Pouvreau, Valérie, Czjzek, Mirjam, Potin, Philippe

“…Brown algal phlorotannins are structural analogs of condensed tannins in terrestrial plants and, like plant phenols, they have numerous biological functions…”
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Phenolic compounds in the brown seaweed Ascophyllum nodosum: distribution and radical-scavenging activities by Audibert, Laetitia, Fauchon, Marilyne, Blanc, Nathalie, Hauchard, Didier, Ar Gall, Erwan

“…Introduction - Phenolic compounds are metabolites exhibited at high levels in Phaeophyceae. Although several studies have been conducted on total phenol…”
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Extraction and Purification of Phlorotannins from Brown Algae by Gall, Erwan Ar, Lelchat, Florian, Hupel, Mélanie, Jégou, Camille, Stiger-Pouvreau, Valérie

“…The interest in the physiological roles and bioactivities of plant phenols has increased over the past decades. In seaweeds, many investigations have dealt…”
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Constitutive or Inducible Protective Mechanisms against UV-B Radiation in the Brown Alga Fucus vesiculosus? A Study of Gene Expression and Phlorotannin Content Responses by Creis, Emeline, Delage, Ludovic, Charton, Sophie, Goulitquer, Sophie, Leblanc, Catherine, Potin, Philippe, Ar Gall, Erwan

“…A role as UV sunscreens has been suggested for phlorotannins, the phenolic compounds that accumulate in brown algae in response to a number of external stimuli…”
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Wave height vs. elevation effect on macroalgal dominated shores: an intercommunity study by Burel, Thomas, Grall, Jacques, Schaal, Gauthier, Le Duff, Michel, Ar Gall, Erwan

“…Sheltered intertidal environments are characterized by highly diversified macroalgal communities which vary over short spatial scales depending on various…”
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Small-scale effects of hydrodynamics on the structure of intertidal macroalgal communities: A novel approach by Burel, Thomas, Schaal, Gauthier, Grall, Jacques, Le Duff, Michel, Chapalain, Georges, Schmitt, Blondie, Gemin, Maxence, Boucher, Olivier, Ar Gall, Erwan

“…Wave height was used as a proxy to assess the effect of hydrodynamics on the development and structure of intertidal North-East Atlantic rocky macroalgal…”
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Radical-scavenging capacity of phenol fractions in the brown seaweed Ascophyllum nodosum: An electrochemical approach by Blanc, Nathalie, Hauchard, Didier, Audibert, Laetitia, Ar Gall, Erwan

“…In this article, the radical-scavenging capacity of phenol fractions extracted from the brown seaweed Ascophyllum nodosum was assessed using in parallel…”
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Distribution and radical scavenging activity of phenols in Ascophyllum nodosum (Phaeophyceae) by Breton, Florian, Cérantola, Stéphane, Ar Gall, Erwan

“…Phlorotannins have been purified and fractionated in the brown alga Ascophyllum nodosum using successively differential extraction, liquid–liquid separation…”
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Development of a new in vitro method to evaluate the photoprotective sunscreen activity of plant extracts against high UV-B radiation by Hupel, Mélanie, Poupart, Nathalie, Ar Gall, Erwan

“…► We propose a new in vitro method to evaluate the sunscreen activity of plant extracts. ► We evaluate the photoprotective activity of samples against high…”
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Biological validation of physical coastal waters classification along the NE Atlantic region based on rocky macroalgae distribution by Ramos, Elvira, Puente, Araceli, Juanes, José Antonio, Neto, João M., Pedersen, Are, Bartsch, Inka, Scanlan, Clare, Wilkes, Robert, Van den Bergh, Erika, Ar Gall, Erwan, Melo, Ricardo

“…A methodology to classify rocky shores along the North East Atlantic (NEA) region was developed. Previously, biotypes and the variability of environmental…”
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Oligocarrageenans and tissue-dependant oxidative burst in Solieria chordalis (Rhodophyceae, Gigartinales) by Ar Gall, Erwan, Cornec, Laurence, Deslandes, Eric

“…SUMMARY The release of hydrogen peroxide by thallus fragments of the rhodophycean Solieria chordalis (C. Agardh) J. Agardh has been documented both in the…”
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Influence of day–night and tidal cycles on phenol content and antioxidant capacity in three temperate intertidal brown seaweeds by Connan, Solène, Deslandes, Eric, Gall, Erwan Ar

“…The daily variations of phenol contents and antioxidant capacities were surveyed in a 32-h field experiment in three temperate brown seaweeds belonging to…”
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Comparison of photoprotective responses to UV radiation in the brown seaweed Pelvetia canaliculata and the marine angiosperm Salicornia ramosissima by Hupel, Mélanie, Lecointre, Camille, Meudec, Anna, Poupart, Nathalie, Gall, Erwan Ar

“…The brown seaweed Pelvetia canaliculata and the marine angiosperm Salicornia ramosissima (purple glasswort) are two marine macrophytes growing in the upper…”
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Parthenogenesis and apospory in the Laminariales: A flow cytometry analysis by Gall (Yvan Le Gall), Erwan Ar, Asensi, Aldo, Marie, Dominique, Kloareg, Bernard

“…Tissue explants and unisexual cultures of Macrocystis pyrifera, Laminaria saccharina and L. digitata regenerated into various forms, including gametophyte-like…”
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Comparison of supervised classifications to discriminate seaweed-dominated habitats through hyperspectral imaging data by Diruit, Wendy, Burel, Thomas, Bajjouk, Touria, Le Bris, Anthony, Richier, Sophie, Terrin, Sara, Helias, Mathieu, Stiger-Pouvreau, Valérie, Ar Gall, Erwan

“…Intertidal macroalgae define complex habitats and play a key role in structuring coastal areas. While, they are primarily studied during field campaigns,…”
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Development of a quality index to evaluate the structure of macroalgal communities by Ar Gall, E., Le Duff, M.

“…A quality index Ics (= index of community structure) has been developed as a single numeric descriptor to assess the structural state of macroalgal communities…”
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Implementation of a new index to assess intertidal seaweed communities as bioindicators for the European Water Framework Directory by Ar Gall, E., Le Duff, M., Sauriau, P.-G., de Casamajor, M.-N., Gevaert, F., Poisson, E., Hacquebart, P., Joncourt, Y., Barillé, A.-L., Buchet, R., Bréret, M., Miossec, L.

“…An index CCO (cover, characteristic species, opportunistic species) has been developed for the implementation of the European Water Framework Directory (WFD)…”
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