ArticleJournal of experimental botany2023
Temperature-induced changes in Arabidopsis Rubisco activity and isoform expression.
Article in Journal of experimental botany, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 28 citations in OpenAlex.
- Photosynthetic Responses to Rising COGlobal change biology · 2026Review
- Chloroplast genome editing of Rubisco boosts photosynthesis and plant growth.Nature communications · 2026Article
- Engineering and Biological Mechanisms of Microalgal COMicroorganisms · 2026Review
- Small subunit isoform diversity underlies structural heterogeneity in native plant Rubisco.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Rubisco kinetic acclimation at the holoenzyme level.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Shining light on photosynthesis.Journal of experimental botany · 2025Article
- A Comparative Bioinformatic Investigation of the Rubisco Small Subunit Gene Family in True Grasses Reveals Novel Targets for Enhanced Photosynthetic Efficiency.International journal of molecular sciences · 2025Article
- Metabolic modeling identifies determinants of thermal growth responses in Arabidopsis thaliana.The New phytologist · 2025Article
- A guide to understanding and measuring photosynthetic induction: considerations and recommendations.The New phytologist · 2025Review
- The chloroplast RNA-binding protein CP29A supportsProceedings of the National Academy of Sciences of the United States of America · 2025Article
- Hydrogen isotope fractionation is controlled by COProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Rubisco is evolving for improved catalytic efficiency and COProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Transgenic strategies to improve the thermotolerance of photosynthesis.Photosynthesis research · 2023Review
- Chlorophyll fluorescence-based high-throughput phenotyping facilitates the genetic dissection of photosynthetic heat tolerance in African (Oryza glaberrima) and Asian (Oryza sativa) rice.Journal of experimental botany · 2023Article
- Boreal conifers maintain carbon uptake with warming despite failure to track optimal temperatures.Nature communications · 2023Article
- Rubisco and its regulation-major advances to improve carbon assimilation and productivity.Journal of experimental botany · 2023Article
- Transcriptome analyses reveal photosynthesis-related genes involved in photosynthetic regulation under low temperature stress inFrontiers in plant science · 2023Article
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Authors and funding
3 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In many plant species, expression of the nuclear encoded Rubisco small subunit (SSu) varies with environmental changes, but the functional role of any changes in expression remains unclear. In this study, we investigated the impact of differential expression of Rubisco SSu isoforms on carbon assimilation in Arabidopsis. Using plants grown at contrasting temperatures (10 °C and 30 °C), we confirm the previously reported temperature response of the four RbcS genes and extend this to protein expression, finding that warm-grown plants produce Rubisco containing ~65% SSu-B and cold-grown plants produce Rubisco with ~65% SSu-A as a proportion of the total pool of subunits. We find that these changes in isoform concentration are associated with kinetic changes to Rubisco in vitro: warm-grown plants produce a Rubisco having greater CO2 affinity (i.e. higher SC/O and lower KC) but lower kcatCO2 at warm measurement temperatures. Although warm-grown plants produce 38% less Rubisco than cold-grown plants on a leaf area basis, warm-grown plants can maintain similar rates of photosynthesis to cold-grown plants at ambient CO2 and 30 °C, indicating that the carboxylation capacity of warm-grown Rubisco is enhanced at warmer measurement temperatures, and is able to compensate for the lower Rubisco content in warm-grown plants. This association between SSu isoform expression and maintenance of Rubisco activity at high temperature suggests that SSu isoform expression could impact the temperature response of C3 photosynthesis.
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