Differential CO2 effect on primary carbon metabolism of flag leaves in durum wheat (Triticum durum Desf.)
IKER ARANJUELO, GORKA ERICE, ALVARO SANZ-SÁEZ, CYRIL ABADIE, FRANÇOISE GILARD, ERENA GIL-QUINTANA, JEAN-CHRISTOPHE AVICE, CHRISTIANA STAUDINGER, STEFANIE WIENKOOP, JOSE L. ARAUS, JACQUES BOURGUIGNON, JUAN J. IRIGOYEN and GUILLAUME TCHERKEZ
Article first published online: 16 JUL 2015 | DOI: 10.1111/pce.12587
Although ear emergence strongly alters C/N partitioning in wheat, phenology driven modifications in leaf in proteomic profile, metabolite content and nutrition of wheat exposed to elevated [CO2] remain to be elucidated. Our study revealed that, compared with vegetative stage, growth at elevated CO2 altered photosynthate export and tended to accelerate leaf N remobilization during grain filling period. Protein derived N remobilization modulated leaf proteins and amino acids profile. Finally our study highlighted the fact that under elevated [CO2] nitrogen use efficiency improvement might represent a target goal for breeding programmes.