Objectif Global climate changes affect coral reefs worldwide and these valuable marine biodiversity hotspots are increasingly experiencing a symbiotic dysfunction known as coral bleaching, where the global bleaching events in 2016 are the most significant to date. The underlying physiological mechanisms inducing the bleaching response remain unclear. It is known that cellular oxidative stress and reactive species such as nitric oxide (NO) and hydrogen peroxide (H2O2) are involved, but the sources and sinks of these compounds, their interplay and spatio-temporal dynamics have not been investigated in corals, partly due to lack of suitable experimental tools. The DENOCS projects will apply a suite of novel quantitative assessment techniques to investigate the dynamics and impact sites of NO and H2O2 in intact corals, coral tissue culture, and isolated photosymbionts when subjected to experimental treatments mimicking global change-induced environmental stress scenarios. This will encompass expert training of Dr. Schrameyer in the use of novel microsensors for NO and H2O2 in combination with advanced bioimaging of the oxidative and nitrosative stress response in corals, variable chlorophyll fluorescence imaging and cellular 14C-fixation assays to assess symbiont photosynthesis. Prospective outcomes of DENOCS include a better understanding of oxidative and nitrosative stress responses in corals, quantification of threshold concentrations and impact sites of reactive oxygen and nitrogen species, and how these are involved in the coral bleaching response. The project DENOCS will promote EU’s research and innovation excellence through its interdisciplinary measurement approach and international collaboration, and will enable the restart of a promising career of Dr. Schrameyer after a maternity break. Champ scientifique natural sciencesbiological sciencesmarine biologynatural sciencesbiological sciencesecologyecosystemsnatural sciencesbiological sciencesbiological behavioural sciencesethologybiological interactionsnatural sciencesbiological sciencesbotany Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Thème(s) MSCA-IF-2016 - Individual Fellowships Appel à propositions H2020-MSCA-IF-2016 Voir d’autres projets de cet appel Régime de financement MSCA-IF-EF-CAR - CAR – Career Restart panel Coordinateur KOBENHAVNS UNIVERSITET Contribution nette de l'UE € 212 194,80 Adresse NORREGADE 10 1165 Kobenhavn Danemark Voir sur la carte Région Danmark Hovedstaden Byen København Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Coût total € 212 194,80
