Objective
The project aims at evaluating the environmental impact of large emissions of nitrogen oxides into the environment concerning effects on growth, senescence processes and cellular injury in trees (poplar, pine and spruce).
In many forests throughout Europe, trees are exposed to increasing concentrations of ozone and hydroperoxides together with elevated inputs of nitrogen. Free radical production and/or formation of hydroperoxides, from reactions between ozone and unsaturated hydrocarbons produced in plants, are suspected to be responsible for the phytotoxicity of ozone. In both long-term and short-term experiments with poplar and pine, this will be examined for reaction products of these reactions, formation of free radicals, aldehydes and monocarbonic acids, and the expression of the antioxidant enzymes, ascorbate peroxidase, glutathione reductase, superoxide dismutase, catalase and their regulation by the phytohormone ethylene. In these experiments, plants will also be subjected to different levels of nitrogen to investigate imbalancing of other nutrients and how the toxicity of ozone and/or hydrogen peroxide may be modified. In these experiments, iron, manganese and/or zinc will be of special interest, as these trace nutrients are essential constituents of these antioxidant enzymes and necessary for their functioning. How they also protect plants against exposure to ambient concentrations of ozone and/or hydroperoxides will be assessed in plants deficient in these elements. Finally, these results will be compared with those exposed to organic hydroperoxides as these have also been reported to be inhibitory to these enzymes. Furthermore, these effects of ozone will also be assessed in the presence or absence of low concentrations of NO (2-5 ppb) as the presence of such low concentrations of NO have been suggested to be required for ozone toxicity.
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 chemical sciences organic chemistry aldehydes
- natural sciences chemical sciences inorganic chemistry transition metals
- natural sciences chemical sciences organic chemistry hydrocarbons
- natural sciences chemical sciences organic chemistry aliphatic compounds
- natural sciences biological sciences biochemistry biomolecules proteins enzymes
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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.
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
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
45131 Essen
Germany
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.