ArticleJournal of experimental botany2013
Harvest index, a parameter conditioning responsiveness of wheat plants to elevated CO2.
Article in Journal of experimental botany, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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31 citing papers in PubMed, 126 citations in OpenAlex.
- The influence of rising carbon dioxide on maize development: genotypic differences in growth, lignification and folate pathway.Journal of the science of food and agriculture · 2026Article
- Transcriptome and proteome analyses reveal high nitrate or ammonium applications alleviate photosynthetic decline ofPhysiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
- Peanut leaf transcriptomic dynamics reveals insights into the acclimation response to elevated carbon dioxide under semiarid conditions.Frontiers in plant science · 2024Article
- Genetic mapping of quantitative trait loci associated with drought tolerance in chickpea (Cicer arietinum L.).Scientific reports · 2023Article
- Phosphorus partitioning contribute to phosphorus use efficiency during grain filling inFrontiers in plant science · 2023Article
- Grain carbon isotope composition is a marker for allocation and harvest index in wheat.Plant, cell & environment · 2022Article
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- Enhancing the productivity of ryegrass at elevated CO2 is dependent on tillering and leaf area development rather than leaf-level photosynthesis.Journal of experimental botany · 2021Article
- Does a Large Ear Type Wheat Variety Benefit More From Elevated COFrontiers in plant science · 2021Article
- Recent Advances in Carbon and Nitrogen Metabolism in C3 Plants.International journal of molecular sciences · 2020Review
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- Photosynthesis in a Changing Global Climate: Scaling Up and Scaling Down in Crops.Frontiers in plant science · 2020Review
- Cisgenic overexpression of cytosolic glutamine synthetase improves nitrogen utilization efficiency in barley and prevents grain protein decline under elevated COPlant biotechnology journal · 2019Article
- C and N metabolism in barley leaves and peduncles modulates responsiveness to changing CO2.Journal of experimental botany · 2019Article
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Authors and funding
7 authors at 6 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The expansion of the world's population requires the development of high production agriculture. For this purpose, it is essential to identify target points conditioning crop responsiveness to predicted [CO2]. The aim of this study was to determine the relevance of ear sink strength in leaf protein and metabolomic profiles and its implications in photosynthetic activity and yield of durum wheat plants exposed to elevated [CO2]. For this purpose, a genotype with high harvest index (HI) (Triticum durum var. Sula) and another with low HI (Triticum durum var. Blanqueta) were exposed to elevated [CO2] (700 µmol mol(-1) versus 400 µmol mol(-1) CO2) in CO2 greenhouses. The obtained data highlighted that elevated [CO2] only increased plant growth in the genotype with the largest HI; Sula. Gas exchange analyses revealed that although exposure to 700 µmol mol(-1) depleted Rubisco content, Sula was capable of increasing the light-saturated rate of CO2 assimilation (Asat) whereas, in Blanqueta, the carbohydrate imbalance induced the down-regulation of Asat. The specific depletion of Rubisco in both genotypes under elevated [CO2], together with the enhancement of other proteins in the Calvin cycle, revealed that there was a redistribution of N from Rubisco towards RuBP regeneration. Moreover, the down-regulation of N, NO3 (-), amino acid, and organic acid content, together with the depletion of proteins involved in amino acid synthesis that was detected in Blanqueta grown at 700 µmol mol(-1) CO2, revealed that inhibition of N assimilation was involved in the carbohydrate imbalance and consequently with the down-regulation of photosynthesis and growth in these plants.
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Registered trials
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