ArticleThe Plant cell2010
The plastid isoform of triose phosphate isomerase is required for the postgerminative transition from heterotrophic to autotrophic growth in Arabidopsis.
Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
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63 citing papers in PubMed, 126 citations in OpenAlex.
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- Differential heat-response characteristics of two plastid isoforms of triose phosphate isomerase in tomato.Plant biotechnology journal · 2024Article
- The best of both worlds: photosynthesis and Solanaceae biodiversity seeking a sustainable food and cosmetic industry.Frontiers in plant science · 2024Article
- Three consecutive cytosolic glycolysis enzymes modulate autophagic flux.Plant physiology · 2023Article
- Elevated methylglyoxal levels inhibit tomato fruit ripening by preventing ethylene biosynthesis.Plant physiology · 2023Article
- Salt stress-induced chloroplastic hydrogen peroxide stimulates pdTPI sulfenylation and methylglyoxal accumulation.The Plant cell · 2023Article
- Plastid Phosphatidylglycerol Homeostasis Is Required for Plant Growth and Metabolism inMetabolites · 2023Article
- Viridiplantae-specific GLXI and GLXII isoforms co-evolved and detoxify glucosone in planta.Plant physiology · 2023Article
- Metabolic network changes during skotomorphogenesis inPlant direct · 2022Article
- Exogenous Spermidine Promotes Germination of Aged Sorghum Seeds by Mediating Sugar Metabolism.Plants (Basel, Switzerland) · 2022Article
- Comparative Analysis on the Evolution of Flowering Genes in Sugar Pathway in Brassicaceae.Genes · 2022Article
- Comparative transcriptomic analysis of maize ear heterosis during the inflorescence meristem differentiation stage.BMC plant biology · 2022Article
- Genome-Wide Analysis of theInternational journal of molecular sciences · 2022Article
- Label-free quantitative proteomics of maize roots from different root zones provides insight into proteins associated with enhance water uptake.BMC genomics · 2022Article
- Suppression of chloroplast triose phosphate isomerase evokes inorganic phosphate-limited photosynthesis in rice.Plant physiology · 2022Article
3 more citing papers are in PubMed but not listed here.
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2 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
During postgerminative seedling establishment, reserves stored during seed filling are mobilized to provide energy and carbon for the growing seedling until autotrophic growth is possible. A plastid isoform of triose phosphate isomerase (pdTPI) plays a crucial role in this transition from heterotrophic to autotrophic growth. A T-DNA insertion in Arabidopsis thaliana pdTPI resulted in a fivefold reduction in transcript, reduced TPI activity, and a severely stunted and chlorotic seedling that accumulated dihydroxyacetone phosphate (DHAP), glycerol, and glycerol-3-phosphate. Methylglyoxal (MG), a by-product of DHAP, also accumulated in the pdtpi mutant. Wild-type seed sown in the presence of any of these four metabolites resulted in a phenocopy of this pdtpi mutant, although MG and DHAP were the most effective based upon dosage. These metabolites (except MG) are by-products of triacylglycerol mobilization and precursors for glycerolipid synthesis, suggesting that lipid metabolism may also be affected. Lipid profiling revealed lower monogalactosyl but higher digalactosyl lipids. It is unclear whether the change in lipid composition is a direct or indirect consequence of the pdtpi mutation, as ribulose-1,5-bis-phosphate carboxylase/oxygenase expression, chloroplast morphology, and starch synthesis are also defective in this mutant. We propose that DHAP and MG accumulation in developing plastids delays the transition from heterotrophic to autotrophic growth, possibly due to MG toxicity.
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