ArticleJournal of experimental botany2021
Overexpression of thioredoxin m in chloroplasts alters carbon and nitrogen partitioning in tobacco.
Article in Journal of experimental botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 16 citations in OpenAlex.
- Not just Rubisco: integrated strategies to overcome the biochemical limitations of CFrontiers in plant science · 2026Review
- Multiomic insights into sucrose accumulation in sugarcane.Plant molecular biology · 2025Article
- Map-based cloning identifies a missense SNP in CsTRX z, encoding a z-type thioredoxin homolog, as the genetic determinant of Dominant Virescent Leaf in cucumber.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Integrative physiological and transcriptome analysis unravels the mechanism of low nitrogen use efficiency in burley tobacco.Plant direct · 2024Article
- Nitrogen application alleviates salt stress by enhancing osmotic balance, ROS scavenging, and photosynthesis of rapeseed seedlings (Plant signaling & behavior · 2022Article
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Authors and funding
10 authors at 4 institutions in 3 countries.
Funding
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Abstract
In plants, there is a complex interaction between carbon (C) and nitrogen (N) metabolism, and its coordination is fundamental for plant growth and development. Here, we studied the influence of thioredoxin (Trx) m on C and N partitioning using tobacco plants overexpressing Trx m from the chloroplast genome. The transgenic plants showed altered metabolism of C (lower leaf starch and soluble sugar accumulation) and N (with higher amounts of amino acids and soluble protein), which pointed to an activation of N metabolism at the expense of carbohydrates. To further delineate the effect of Trx m overexpression, metabolomic and enzymatic analyses were performed on these plants. These results showed an up-regulation of the glutamine synthetase-glutamate synthase pathway; specifically tobacco plants overexpressing Trx m displayed increased activity and stability of glutamine synthetase. Moreover, higher photorespiration and nitrate accumulation were observed in these plants relative to untransformed control plants, indicating that overexpression of Trx m favors the photorespiratory N cycle rather than primary nitrate assimilation. Taken together, our results reveal the importance of Trx m as a molecular mediator of N metabolism in plant chloroplasts.
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