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

Driever, Steven M., Simkin, Andrew J., Alotaibi, Saqer, Fisk, Stuart J., Madgwick, Pippa J., Sparks, Caroline A., Jones, Huw D., Lawson, Tracy, Parry, Martin A. J., Raines, Christine A. and others. (2017) Increased SBPase activity improves photosynthesis and grain yield in wheat grown in greenhouse conditions. Philosophical Transactions of the Royal Society B: Biological Sciences, 372 (1730). ISSN 0962-8436. E-ISSN 1471-2970. (doi:10.1098/rstb.2016.0384) (KAR id:93872)

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.

Item Type: Article
DOI/Identification number: 10.1098/rstb.2016.0384
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Biosciences
Depositing User: Andrew Simkin
Date Deposited: 05 May 2022 18:27 UTC
Last Modified: 05 Nov 2024 12:58 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/93872 (The current URI for this page, for reference purposes)

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