Objectif This program aims to increase our knowledge about the biology and biodiversity of ‘blue diatoms’, unique among microalgae by their ability to produce specific water-soluble bluish pigments. Up to now the terms ‘blue diatoms’ have referred exclusively to the pennate marine diatom Haslea ostrearia, and to its blue pigment, the so-called marennine, a polyphenolic molecule with biological activities, which is produced during algal growth and ageing. In oyster ponds of western France, H. ostrearia may year on year become dominant, and marennine released in the seawater is responsible for the ’greening’ of oysters, a phenomenon which has a noticeable local economical impact. The diatom H. ostrearia has long been considered the only microalga ever known, worldwide in distribution, to produce marennine. Indeed in the literature, diatoms with blue tips described as H. ostrearia were reported in almost all seas and oceans in northern and southern hemispheres. Their presence was deduced either directly from the observation of living cells, or indirectly from a greening effect of bivalves. In most cases, a careful identification of the ‘blue diatoms’ at the species level did not rely on detailed studies of morphology and morphometrics. This paradigm has been recently questioned following the discovery, in phytoplanktonic samples taken on rocky shores of Crimea (Ukraine), of diatoms presenting similarities with H. ostrearia, with bluish apices, but in which the pigment seemed different from marennine. Preliminary results indicate that these diatoms could be two different species, which raises a concern about occurrences of ‘blue diatoms’ and their identification as H. ostrearia in all other marine environments. Hence the present project is aiming to deepen our knowledge of the biology, physiology and pigments of ‘blue diatoms’, to study their biodiversity, and to unravel their taxonomy, especially regarding the genus Haslea. Champ scientifique natural sciencesbiological sciencesecologyecosystemsmedical and health sciencesbasic medicinephysiology Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) FP7-PEOPLE-2010-IRSES - Marie Curie Action "International Research Staff Exchange Scheme" Appel à propositions FP7-PEOPLE-2010-IRSES Voir d’autres projets de cet appel Régime de financement MC-IRSES - International research staff exchange scheme (IRSES) Coordinateur UNIVERSITE DU MANS Contribution de l’UE € 100 400,00 Adresse AVENUE OLIVIER MESSIAEN 72085 Le Mans France Voir sur la carte Région Pays de la Loire Pays de la Loire Sarthe Type d’activité Higher or Secondary Education Establishments Contact administratif Laetitia Pennuen (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée Participants (5) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire UNIVERSITE DE NANTES France Contribution de l’UE € 46 200,00 Adresse QUAI DE TOURVILLE 1 44035 NANTES CEDEX 1 Voir sur la carte Région Pays de la Loire Pays de la Loire Loire-Atlantique Type d’activité Higher or Secondary Education Establishments Contact administratif Elodie Hervio (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée UNIVERSITE DE BRETAGNE SUD France Contribution de l’UE € 4 200,00 Adresse RUE ARMAND GUILLEMOT 27 56100 Lorient Voir sur la carte Région Bretagne Bretagne Morbihan Type d’activité Higher or Secondary Education Establishments Contact administratif Audrey Maffessoli (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée LA ROCHELLE UNIVERSITE France Contribution de l’UE € 10 500,00 Adresse Avenue Albert-Einstein 23 17031 La Rochelle Voir sur la carte Région Nouvelle-Aquitaine Poitou-Charentes Charente-Maritime Type d’activité Higher or Secondary Education Establishments Contact administratif Lucia Picard (Mrs.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée CARDIFF UNIVERSITY Royaume-Uni Contribution de l’UE € 16 800,00 Adresse NEWPORT ROAD 30 36 CF24 0DE Cardiff Voir sur la carte Région Wales East Wales Cardiff and Vale of Glamorgan Type d’activité Higher or Secondary Education Establishments Contact administratif Nick Bodycombe (Mr.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée PANEPISTIMIO KRITIS Grèce Contribution de l’UE € 8 400,00 Adresse UNIVERSITY CAMPUS GALLOS 74100 Rethimno Voir sur la carte Région Νησιά Αιγαίου Κρήτη Ρέθυμνο Type d’activité Higher or Secondary Education Establishments Contact administratif Panayota Spetsidou (Mrs.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
