Objective
To date, research on adaptation of photosynthetic microorganisms to external stimuli such as nutrients and light has mainly focussed on full adaptation. The aim of this study is to understand the largely unknown constrains that determine the transition fro m one adaptive state to another. This is not a time invariant phenomenon, but proceeds in a historical context in that every adaptation is determined by previous adaptation of an organism. In this respect the cellular memory will be studied as response to a sequence pattern of phosphorus pulses varying in amplitude and frequency. The 32P-uptake experiments focus on the ecophysiological relevance of information processing in a P-pulsed environment. From this view, the P-uptake will be described phenomenologically as in thermodynamics.
P is favoured because it can limit both marine and freshwater algal growth and plays a central role in metabolic pathways. In the past, nutrients as P have often been treated as slowly varying in ecological studies. However, we know that P is often supplied in pulses when microscopic animals or fish excrete, or when storms mix P-rich deeper waters into P-poor surface waters. A key issue here is, to gain a better understanding how the adaptive uptake of P-pulses interact with the utilisation of light and other nutrients. The P-light-interactions will be analysed by photosynthetic properties of contrasting states, the `adapted state and the `non-adapted (adaptive) mode.
The study of cellular P-compounds as DNA, RNA and lipids will b e linked to ecological stoichiometry. We will prove the hypothesis that distinct P-uptake strategists confirm a recently discussed concept of ecological strategists. Practical issues are to develop field bioassays determining the P-availability in marine systems. Experiments will be undertaken with two marine algae Thalassiosira weissflogii and Emiliania huxleyi, which have contrasting P-light requirements and are representative of marine biochemical cycles.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology phycology
- natural sciences biological sciences biochemistry biomolecules lipids
- natural sciences earth and related environmental sciences hydrology limnology
- natural sciences biological sciences zoology mammalogy
- natural sciences computer and information sciences data science data processing
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2005-MOBILITY-5
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
COLCHESTER
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.