Increased SBPase activity improves photosynthesis and grain yield in wheat grown in greenhouse conditions

Awduron Sefydliadau
  • Steven M. Driever(Awdur)
    University of Essex
  • Andrew J. Simkin(Awdur)
    University of Essex
  • Saqer Alotaibi(Awdur)
    University of Essex
  • Stuart J. Fisk(Awdur)
    University of Essex
  • Pippa J. Madgwick(Awdur)
    Rothamsted Research
  • Caroline A Sparks(Awdur)
    Rothamsted Research
  • Huw Jones(Awdur)
  • Tracy Lawson(Awdur)
    University of Essex
  • Martin A. J. Parry(Awdur)
    Rothamsted Research
  • Christine A. Raines(Awdur)
    University of Essex
Math Erthygl
Iaith wreiddiolSaesneg
Rhif yr erthygl0384
Nifer y tudalennau21
CyfnodolynPhilosophical Transactions B: Biological Sciences
Rhif y cyfnodolyn1730
Dangosyddion eitem ddigidol (DOIs)
StatwsCyhoeddwyd - 14 Awst 2017
Cysylltiad parhaol
Arddangos ystadegau lawrlwytho
Gweld graff cysylltiadau
Fformatau enwi


To meet the growing demand for food, substantial improvements in yields are needed. This is particularly the case for wheat, where global yield has stagnated in recent years. Increasing photosynthesis has been identified as a primary target to achieve yield improvements. To increase leaf photosynthesis in wheat, the level of the Calvin-Benson cycle enzyme sedoheptulose-1,7-biphosphatase (SBPase) has been increased through transformation and expression of a Brachypodium dystachion SBPase gene construct. Transgenic lines with increased SBPase protein levels and activity were grown under greenhouse conditions and showed enhanced leaf photosynthesis and increased total biomass and dry seed yield. This showed the potential of improving yield potential by increasing leaf photosynthesis in a crop species such as wheat. The results are discussed with regards to future strategies for further improvement of photosynthesis in wheat.