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000055988 0247_ $$2pmid$$apmid:17158509
000055988 0247_ $$2DOI$$a10.1093/jxb/erl233
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000055988 041__ $$aeng
000055988 082__ $$a580
000055988 084__ $$2WoS$$aPlant Sciences
000055988 1001_ $$0P:(DE-HGF)0$$aAinsworth, E. A.$$b0
000055988 245__ $$aDoes elevated atmospheric [CO2] alter diurnal C uptake and the balance of C and N metabolites in growing and fully expanded soybean leaves?
000055988 260__ $$aOxford$$bUniv. Press$$c2007
000055988 300__ $$a579 - 591
000055988 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000055988 440_0 $$03318$$aJournal of Experimental Botany$$v58$$x0022-0957$$y3
000055988 500__ $$aRecord converted from VDB: 12.11.2012
000055988 520__ $$aIncreases in growth at elevated [CO2] may be constrained by a plant's ability to assimilate the nutrients needed for new tissue in sufficient quantity to match the increase in carbon fixation and/or the ability to transport those nutrients and carbon in sufficient quantity to growing organs and tissues. Analysis of metabolites provides an indication of shifts in carbon and nitrogen partitioning due to rising atmospheric [CO2] and can help identify where bottlenecks in carbon utilization occur. In this study, the carbon and nitrogen balance was investigated in growing and fully expanded soybean leaves exposed to elevated [CO2] in a free air CO2 enrichment experiment. Diurnal photosynthesis and diurnal profiles of carbon and nitrogen metabolites were measured during two different crop growth stages. Diurnal carbon gain was increased by c. 20% in elevated [CO2] in fully expanded leaves, which led to significant increases in leaf hexose, sucrose, and starch contents. However, there was no detectable difference in nitrogen-rich amino acids and ureides in mature leaves. By contrast to mature leaves, developing leaves had high concentrations of ureides and amino acids relative to low concentrations of carbohydrates. Developing leaves at elevated [CO2] had smaller pools of ureides compared with developing leaves at ambient [CO2], which suggests N assimilation in young leaves was improved by elevated [CO2]. This work shows that elevated [CO2] alters the balance of carbon and nitrogen pools in both mature and growing soybean leaves, which could have down-stream impacts on growth and productivity.
000055988 536__ $$0G:(DE-Juel1)FUEK407$$2G:(DE-HGF)$$aTerrestrische Umwelt$$cP24$$x0
000055988 588__ $$aDataset connected to Web of Science, Pubmed
000055988 650_2 $$2MeSH$$aAmino Acids: metabolism
000055988 650_2 $$2MeSH$$aCarbohydrate Metabolism
000055988 650_2 $$2MeSH$$aCarbon: metabolism
000055988 650_2 $$2MeSH$$aCarbon Dioxide: metabolism
000055988 650_2 $$2MeSH$$aCircadian Rhythm
000055988 650_2 $$2MeSH$$aNitrogen: metabolism
000055988 650_2 $$2MeSH$$aNitrogen Fixation
000055988 650_2 $$2MeSH$$aPhotosynthesis
000055988 650_2 $$2MeSH$$aPlant Leaves: growth & development
000055988 650_2 $$2MeSH$$aPlant Leaves: metabolism
000055988 650_2 $$2MeSH$$aSoybeans: growth & development
000055988 650_2 $$2MeSH$$aSoybeans: metabolism
000055988 650_7 $$00$$2NLM Chemicals$$aAmino Acids
000055988 650_7 $$0124-38-9$$2NLM Chemicals$$aCarbon Dioxide
000055988 650_7 $$07440-44-0$$2NLM Chemicals$$aCarbon
000055988 650_7 $$07727-37-9$$2NLM Chemicals$$aNitrogen
000055988 650_7 $$2WoSType$$aJ
000055988 65320 $$2Author$$aamino acids
000055988 65320 $$2Author$$aelevated [CO2]
000055988 65320 $$2Author$$aFACE
000055988 65320 $$2Author$$aGlycine max
000055988 65320 $$2Author$$ahexose
000055988 65320 $$2Author$$astarch
000055988 65320 $$2Author$$asucrose
000055988 65320 $$2Author$$aureide
000055988 7001_ $$0P:(DE-HGF)0$$aRogers, A.$$b1
000055988 7001_ $$0P:(DE-HGF)0$$aLeakey, A. D. B.$$b2
000055988 7001_ $$0P:(DE-HGF)0$$aHeady, L. E.$$b3
000055988 7001_ $$0P:(DE-HGF)0$$aGibon, Y.$$b4
000055988 7001_ $$0P:(DE-HGF)0$$aStitt, M.$$b5
000055988 7001_ $$0P:(DE-Juel1)129402$$aSchurr, U.$$b6$$uFZJ
000055988 773__ $$0PERI:(DE-600)1466717-4$$a10.1093/jxb/erl233$$gVol. 58, p. 579 - 591$$p579 - 591$$q58<579 - 591$$tThe @journal of experimental botany$$v58$$x0022-0957$$y2007
000055988 8567_ $$uhttp://dx.doi.org/10.1093/jxb/erl233
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000055988 9141_ $$y2007
000055988 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000055988 9201_ $$0I:(DE-Juel1)ICG-3-20090406$$d31.10.2010$$gICG$$kICG-3$$lPhytosphäre$$x1
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