Hauptseite > Publikationsdatenbank > Altered physiological function, not structure, drives increased radiation-use efficiency of soybean grown at elevated CO2 > print

001     9981
005     20200423202743.0
024 7 _ |2 pmid
|a pmid:20407832
024 7 _ |2 DOI
|a 10.1007/s11120-010-9548-6
024 7 _ |2 WOS
|a WOS:000278902700003
037 _ _ |a PreJuSER-9981
041 _ _ |a eng
082 _ _ |a 580
084 _ _ |2 WoS
|a Plant Sciences
100 1 _ |0 P:(DE-Juel1)129388
|a Rascher, U.
|b 0
|u FZJ
245 _ _ |a Altered physiological function, not structure, drives increased radiation-use efficiency of soybean grown at elevated CO2
260 _ _ |a Dordrecht [u.a.]
|b Springer Science + Business Media B.V
|c 2010
300 _ _ |a 15 - 25
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
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336 7 _ |a Journal Article
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|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |0 14201
|a Photosynthesis Research
|v 105
|x 0166-8595
|y 1
500 _ _ |a We thank Tim Mies for technical assistance, and Steve Long for supporting our research at SoyFACE. SoyFACE was supported by the Illinois Council for Food and Agricultural Research, Archer Daniels Midland Company, the U.S. Department of Agricultural, and the Illinois Agricultural Experiment Station. B. Biskup and U. Rascher were supported by a NSF/DAAD grant (grant PPP D/05/50496). B. Biskup also acknowledges support of his PhD thesis by the Heinrich-Heine University of Dusseldorf, Germany. We thank K.G. Rascher for assistance with the statistical analyses, and D. Ort for valuable discussions. We also greatly thank H. Scharr for supporting the development of the stereo system and the development of the analyses algorithms.
520 _ _ |a Previous studies of elevated carbon dioxide concentration ([CO(2)]) on crop canopies have found that radiation-use efficiency is increased more than radiation-interception efficiency. It is assumed that increased radiation-use efficiency is due to changes in leaf-level physiology; however, canopy structure can affect radiation-use efficiency if leaves are displayed in a manner that optimizes their physiological capacity, even though the canopy intercepts the same amount of light. In order to determine the contributions of physiology and canopy structure to radiation-use and radiation-interception efficiency, this study relates leaf-level physiology and leaf display to photosynthetic rate of the outer canopy. We used a new imaging approach that delivers three-dimensional maps of the outer canopy during the growing season. The 3D data were used to model leaf orientation and mean photosynthetic electron transport of the outer canopy to show that leaf orientation changes did not contribute to increased radiation-use; i.e. leaves of the outer canopy showed similar diurnal leaf movements and leaf orientation in both treatments. Elevated [CO(2)] resulted in an increased maximum electron transport rate (ETR(max)) of light reactions of photosynthesis. Modeling of canopy light interception showed that stimulated leaf-level electron transport at elevated [CO(2)], and not alterations in leaf orientation, was associated with stimulated radiation-use efficiency and biomass production in elevated [CO(2)]. This study provides proof of concept of methodology to quantify structure-function relationships in combination, allowing a quantitative estimate of the contribution of both effects to canopy energy conversion under elevated [CO(2)].
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|2 G:(DE-HGF)
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|c P24
|x 0
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Carbon Dioxide: pharmacology
650 _ 2 |2 MeSH
|a Electron Transport: drug effects
650 _ 2 |2 MeSH
|a Photosynthesis: drug effects
650 _ 2 |2 MeSH
|a Soybeans: drug effects
650 _ 2 |2 MeSH
|a Soybeans: growth & development
650 _ 2 |2 MeSH
|a Soybeans: physiology
650 _ 7 |0 124-38-9
|2 NLM Chemicals
|a Carbon Dioxide
650 _ 7 |2 WoSType
|a J
653 2 0 |2 Author
|a Three-dimensional canopy surface
653 2 0 |2 Author
|a Photosynthesis
653 2 0 |2 Author
|a Light reactions
653 2 0 |2 Author
|a Chlorophyll fluorescence
653 2 0 |2 Author
|a Elevated CO2
653 2 0 |2 Author
|a Glycine max
653 2 0 |2 Author
|a Structure-function relations
700 1 _ |0 P:(DE-Juel1)VDB62682
|a Biskup, B.
|b 1
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Leakey, A.D.B.
|b 2
700 1 _ |0 P:(DE-HGF)0
|a McGrath, J.M.
|b 3
700 1 _ |0 P:(DE-HGF)0
|a Ainsworth, E.A.
|b 4
773 _ _ |0 PERI:(DE-600)1475688-2
|a 10.1007/s11120-010-9548-6
|g Vol. 105, p. 15 - 25
|p 15 - 25
|q 105<15 - 25
|t Photosynthesis research
|v 105
|x 0166-8595
|y 2010
856 7 _ |u http://dx.doi.org/10.1007/s11120-010-9548-6
856 4 _ |u https://juser.fz-juelich.de/record/9981/files/FZJ-9981.pdf
|y Restricted
|z Published final document.
909 C O |o oai:juser.fz-juelich.de:9981
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914 1 _ |y 2010
915 _ _ |0 StatID:(DE-HGF)0010
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|d 31.10.2010
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