Poorter, H and Berkel, Y V and Baxter, R and et al, . (1997) The effect of elevated CO2 on the chemical composition and construction costs of leaves of 27 C3 species. Plant, Cell and Environment, 20. pp. 472-482.
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Abstract
We determined the proximate chemical composition as well as the construction costs of leaves of 27 species, grown at ambient and at a twice-ambient partial pressure of atmospheric CO2. These species comprised wild and agricultural herbaceous plants as well as tree seedlings. Both average responses across species and the range in response were considered. Expressed on a total dry weight basis, the main change in chemical composition due to CO2 was the accumulation of total non-structural carbohydrates (TNC). To a lesser extent, decreases were found for organic N compounds and minerals. Hardly any change was observed for total structural carbohydrates (cellulose plus hemicellulose), lignin and lipids. When expressed on a TNC-free basis, decreases in organic N compounds and minerals were still present. On this basis, there was also an increase in the concentration of soluble phenolics.
| Item Type: | Article |
|---|---|
| Additional Information: | We thank René Kwant for his help with the C/N analyses, and H. Marschner for helpful discussions. Aart van Bel kindly classified the species into symplastic and apoplastic phloem-loading plants. Owen Atkin, Adrie van der Werf, Eric Garnier and two anonymous reviewers made helpful comments on a previous version of the paper. |
| Uncontrolled Keywords: | carbon dioxide; chemical composition; C:N ratio; construction costs; growth respiration; lignin; minerals; organic acids; protein; TNC. |
| Author Affiliation: | Department of Plant Ecology and Evolutionary Biology, Utrecht University, PO Box 800.84, 3508 TB Utrecht, The Netherlands |
| Subjects: | Environmental Science |
| Divisions: | General |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 19 Mar 2012 13:03 |
| Last Modified: | 19 Mar 2012 13:04 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3984 |
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