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Recent and projected increases in atmospheric carbon dioxide and the potential impacts on growth and alkaloid production in wild poppy (Papaver setigerum DC.)
- In the current study, we quantified changes in the growth and alkaloid content of wild poppy, (Papaver setigerum) as a function of recent and projected changes in global atmospheric carbon dioxide concentration, [CO₂]. The experimental [CO₂] values (300, 400, 500 and 600μmol mol⁻¹) correspond roughly to the concentrations that existed during the middle of the twentieth century, the current concentration, and near and long-term projections for the current century (2050 and 2090), respectively. Additional carbon dioxide resulted in significant increases in leaf area and above ground biomass for P. setigerum at all [CO₂] relative to the 300μmol mol⁻¹ baseline. Reproductively, increasing [CO₂] from 300 to 600μmol mol⁻¹ increased the number of capsules, capsule weight and latex production by 3.6, 3.0 and 3.7x, respectively, on a per plant basis. Quantification of secondary compounds (i.e. those not involved in primary metabolism) included the alkaloids morphine, codeine, papaverine and noscapine. The amount of all alkaloids increased significantly on a per plant basis, with the greatest relative increase occurring with recent increases in atmospheric carbon dioxide (e.g. from 300 to 400μmol mol⁻¹). Overall, these data suggest that as atmospheric [CO₂] continues to increase, significant effects on the production of secondary plant compounds of pharmacological interest (i.e. opiates) could be expected.
Ziska, Lewis H. , Panicker, Sini , Wojno, Heidi L.
carbon dioxide , elevated atmospheric gases , Papaver somniferum subsp. setigerum , medicinal plants , plant growth , leaf area , biomass , opium alkaloids , chemical constituents of plants
- Includes references
- Climatic change 2008 Dec., v. 91, no. 3-4
- Dordrecht : Springer Netherlands
Journal Articles, USDA Authors, Peer-Reviewed
- Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.