Differential CO2 effect on primary carbon metabolism of flag leaves in durum wheat (Triticum durum Desf.)
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Aranjuelo, Iker; Erice, Gorka; Sanz-Sáez, Alvaro; Abadie, Cyril; Gilard, Francoise; Gil-Quintana, Erena; Avice, Jean-Christoph; Staudinger, Christiana; Wienkoop, Stefanie; Bourguignon, Jacques; Araus, Jose L.; Tcherkez, Guillaume
Description
C sink/source balance and N assimilation have been identified as target processes conditioning crop responsiveness to elevated CO<inf>2</inf>. However, little is known about phenology-driven modifications of C and N primary metabolism at elevated CO<inf>2</inf> in cereals such as wheat. Here, we examined the differential effect of elevated CO<inf>2</inf> at two development stages (onset of flowering, onset of grain filling) in durum wheat (Triticum durum, var. Sula) using physiological...[Show more]
dc.contributor.author | Aranjuelo, Iker | |
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dc.contributor.author | Erice, Gorka | |
dc.contributor.author | Sanz-Sáez, Alvaro | |
dc.contributor.author | Abadie, Cyril | |
dc.contributor.author | Gilard, Francoise | |
dc.contributor.author | Gil-Quintana, Erena | |
dc.contributor.author | Avice, Jean-Christoph | |
dc.contributor.author | Staudinger, Christiana | |
dc.contributor.author | Wienkoop, Stefanie | |
dc.contributor.author | Bourguignon, Jacques | |
dc.contributor.author | Araus, Jose L. | |
dc.contributor.author | Tcherkez, Guillaume | |
dc.date.accessioned | 2016-02-24T22:40:51Z | |
dc.identifier.issn | 0140-7791 | |
dc.identifier.uri | http://hdl.handle.net/1885/98472 | |
dc.description.abstract | C sink/source balance and N assimilation have been identified as target processes conditioning crop responsiveness to elevated CO<inf>2</inf>. However, little is known about phenology-driven modifications of C and N primary metabolism at elevated CO<inf>2</inf> in cereals such as wheat. Here, we examined the differential effect of elevated CO<inf>2</inf> at two development stages (onset of flowering, onset of grain filling) in durum wheat (Triticum durum, var. Sula) using physiological measurements (photosynthesis, isotopes), metabolomics, proteomics and 15N labelling. Our results show that growth at elevated CO<inf>2</inf> was accompanied by photosynthetic acclimation through a lower internal (mesophyll) conductance but no significant effect on Rubisco content, maximal carboxylation or electron transfer. Growth at elevated CO<inf>2</inf> altered photosynthate export and tended to accelerate leaf N remobilization, which was visible for several proteins and amino acids, as well as lysine degradation metabolism. However, grain biomass produced at elevated CO<inf>2</inf> was larger and less N rich, suggesting that nitrogen use efficiency rather than photosynthesis is an important target for improvement, even in good CO<inf>2</inf>-responsive cultivars. | |
dc.publisher | Blackwell Publishing Ltd | |
dc.source | Plant Cell and Environment | |
dc.title | Differential CO2 effect on primary carbon metabolism of flag leaves in durum wheat (Triticum durum Desf.) | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 38 | |
dc.date.issued | 2015 | |
local.identifier.absfor | 060104 - Cell Metabolism | |
local.identifier.ariespublication | U3488905xPUB5493 | |
local.type.status | Published Version | |
local.contributor.affiliation | Aranjuelo, Iker, University of the Basque Country | |
local.contributor.affiliation | Erice, Gorka, University of Illinois | |
local.contributor.affiliation | Sanz-Sáez, Alvaro, University of Illinois | |
local.contributor.affiliation | Abadie, Cyril, Université Paris-Sud | |
local.contributor.affiliation | Gilard, Francoise, Institute of Plant Sciences | |
local.contributor.affiliation | Gil-Quintana, Erena, Universidad Pública de Navarra Campus de Arrosadía | |
local.contributor.affiliation | Avice, Jean-Christoph, Université de Caen Basse-Normandie | |
local.contributor.affiliation | Staudinger, Christiana, University of Vienna | |
local.contributor.affiliation | Wienkoop, Stefanie, University of Vienna | |
local.contributor.affiliation | Bourguignon, Jacques, Laboratoire Physiologie Cellulaire Végétale (PCV), | |
local.contributor.affiliation | Araus, Jose L., Universidad de Barcelona | |
local.contributor.affiliation | Tcherkez, Guillame, College of Medicine, Biology and Environment, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.startpage | 2780 | |
local.bibliographicCitation.lastpage | 2794 | |
local.identifier.doi | 10.1111/pce.12587 | |
local.identifier.absseo | 970106 - Expanding Knowledge in the Biological Sciences | |
dc.date.updated | 2016-02-24T10:07:26Z | |
local.identifier.scopusID | 2-s2.0-84937046719 | |
Collections | ANU Research Publications |
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