A5074984895- Marine and coastal ecosystems
- Algal biology and biofuel production
- Ocean Acidification Effects and Responses
- Calcium Carbonate Crystallization and Inhibition
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Community Ecology and Physiology
- Environmental Toxicology and Ecotoxicology
- Marine Biology and Ecology Research
- Marine Bivalve and Aquaculture Studies
- Caveolin-1 and cellular processes
- Polymer-Based Agricultural Enhancements
- Marine and coastal plant biology
- Erythrocyte Function and Pathophysiology
- Isotope Analysis in Ecology
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2012-2017
Summary There is increasing evidence that different light intensities strongly modulate the effects of ocean acidification ( OA ) on marine phytoplankton. The aim present study was to investigate interactive and dynamic light, mimicking natural mixing regimes. Antarctic diatom C haetoceros debilis grown under two p CO 2 (390 1000 μatm) conditions (constant dynamic), latter yielding same integrated irradiance over day. To characterize between treatments, growth, elemental composition, primary...
Coccolithophores play a crucial role in the marine carbon cycle and thus it is interesting to know how they will respond climate change. After several decades of research interplay between intracellular processes carbonate system still not well understood. On basis experimental findings given literature, numerical cell model developed that describes inorganic fluxes seawater sites calcite precipitation photosynthetic fixation. The implemented consists four compartments, for each which...
Coccolithophores play an important role in the marine carbon cycle. Variations light intensity and external carbonate system composition alter intracellular fluxes therewith production rates of particulate organic inorganic carbon. Aiming to find a mechanistic explanation for interrelation between dissolved rates, we develop numerical cell model Emiliania huxleyi, one most abundant coccolithophore species. The consists four cellular compartments, each which is resolved dynamically....
Over the last four decades, different hypotheses of Ca(2+) and dissolved inorganic carbon transport to intracellular site calcite precipitation have been put forth for Emiliania huxleyi (Lohmann) Hay & Mohler. The objective this study was assess these by means mathematical models. It is shown that a vesicle-based would require very high intravesicular concentrations, vesicle fusion frequencies as well fast membrane recycling inside cell. Furthermore, kinetic model calcification compartment...