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Title:   Author  item
                                            ROGERS, ALISTAIR - BROOKHAVEN NATIONAL LABitem
                                            GIBON, YVES - MAX PLANCK INSTITUTEitem
                                            Ainsworth, Elizabeth

                                                         - *Lisa*item
                                            Morgan, Patrickitem
                                            BERNACCHI, CARL - IL STATE WATER SURVEYitem
                                            STITT, MARK - MAX PLANCK INSTITUTEitem
                                            Ort, Donalditem
                                            LONG, STEPHEN - UNIVERSITY OF ILLINOIS
  Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 8/15/2006
                                    Publication  Date: 11/12/2006
                                    Citation: Rogers, A., Gibon, Y., Ainsworth, E.A., Morgan, P.B., Bernacchi, C.J., Stitt, M., Ort, D.R., Long, S.P. 2006. The effect of elevated CO2 on carbon and nitrogen metabolism in soybean under FACE [abstract]. ASA-CSSA-SSSA Annual Meeting Abstracts. Available: http://crops/cpmfex.com/crops/2006am/techprogram/P22990.htm  .Interpretive Summary:
                                Technical Abstract: Crops have the potential to exploit the predicted increase in atmospheric carbon dioxide concentration ([CO2]).  Growth is typically stimulated at elevated [CO2], but a sustained and maximal exploitation of rising [CO2] is dependent on an adequate supply of nutrients, principally nitrogen, and sufficient sink capacity to utilize the additional carbon fixed at elevated [CO2].  We have examined the effect of elevated [CO2] on carbon and nitrogen metabolism in soybean grown in the field using Free Air CO2 Enrichment (FACE) technology where soybean is able to complete it's entire life cycle at an elevated concentration of CO2 under fully open air conditions.  In both fully expanded and developing leaves we have shown that increased carbon availability at elevated [CO2] improved nitrogen assimilation.  The additional carbon available at elevated [CO2] allowed soybeans to overcome an early season nitrogen limitation and suggests that soybeans were able to acclimate to the increased nitrogen demand at elevated [CO2].


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