Increased SBPase activity improves photosynthesis and grain yield in wheat grown in greenhouse conditions
Steven M. Driever,Steven M. Driever,Andrew J. Simkin,Saqer S. Alotaibi,Stuart J. Fisk,Pippa J. Madgwick,Caroline A. Sparks,Huw Jones,Huw Jones,Tracy Lawson,Martin A. J. Parry,Martin A. J. Parry,Christine A. Raines +12 more
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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 distachyon SBPase gene construct.Abstract:
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 distachyon 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 regard to future strategies for further improvement of photosynthesis in wheat.read more
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Genetic strategies for improving crop yields
Julia Bailey-Serres,Julia Bailey-Serres,Jane E. Parker,Elizabeth A. Ainsworth,Giles E. D. Oldroyd,Julian I. Schroeder +5 more
TL;DR: The potential of plant sciences to address post-Green Revolution challenges in agriculture is considered and emerging strategies for enhancing sustainable crop production and resilience in a changing climate are explored.
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Feeding the world: improving photosynthetic efficiency for sustainable crop production
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The nitrogen cost of photosynthesis.
John R. Evans,Victoria C. Clarke +1 more
TL;DR: A generalized nitrogen budget for a C3 leaf cell is provided and the potential for improving photosynthesis from a nitrogen perspective is discussed.
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Phenotyping of field-grown wheat in the UK highlights contribution of light response of photosynthesis and flag leaf longevity to grain yield.
Elizabete Carmo-Silva,P.J. Andralojc,Joanna C. Scales,Steven M. Driever,Andrew Mead,Tracy Lawson,Christine A. Raines,Martin A. J. Parry,Martin A. J. Parry +8 more
TL;DR: Flag leaf longevity and operating photosynthetic rates at ambient CO2 and a range of light levels correlated with grain yield of UK field-grown wheat reveal new targets to enhance crop productivity.
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Overexpression of the RieskeFeS Protein Increases Electron Transport Rates and Biomass Yield.
TL;DR: The transgenic plants presented here provide novel tools to explore the potential for manipulating electron transport processes to increase crop productivity and result in substantial and significant impacts on the quantum efficiency of PSI and PSII, electron transport, biomass, and seed yield in Arabidopsis plants.
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