ArticleJournal of experimental botany2020
Leaf status and environmental signals jointly regulate proline metabolism in winter oilseed rape.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 25 citations in OpenAlex.
- Osmotic stress and melatonin in Pfaffia glomerata: biochemical responses and 20-hydroxyecdysone modulation.Protoplasma · 2026Article
- Low Nitrogen Input Mitigates Quantitative but Not Qualitative Reconfiguration of Leaf Primary Metabolism inPlants (Basel, Switzerland) · 2024Article
- Enhancing cold resistance in Banana (Musa spp.) through EMS-induced mutagenesis, L-Hyp pressure selection: phenotypic alterations, biomass composition, and transcriptomic insights.BMC plant biology · 2024Article
- Evaluation of GC/MS-BasedMetabolites · 2023Article
- Efficacy ofPlants (Basel, Switzerland) · 2022Article
- Validation of carbon isotopologue distribution measurements by GC-MS and application toFrontiers in plant science · 2022Article
- Intriguing Role of Proline in Redox Potential Conferring High Temperature Stress Tolerance.Frontiers in plant science · 2022Review
- Article
- Leaf Phenological Stages of Winter Oilseed Rape (Frontiers in plant science · 2021Article
- Sink/Source Balance of Leaves Influences Amino Acid Pools and Their Associated Metabolic Fluxes in Winter Oilseed Rape (Metabolites · 2020Article
- Manipulating Amino Acid Metabolism to Improve Crop Nitrogen Use Efficiency for a Sustainable Agriculture.Frontiers in plant science · 2020Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Proline metabolism is an essential component of plant adaptation to multiple environmental stress conditions that is also known to participate in specific developmental phases, particularly in reproductive organs. Recent evidence suggested a possible role for proline catabolism in Brassica napus for nitrogen remobilization processes from source leaves at the vegetative stage. Here, we investigate transcript levels of Δ1-PYRROLINE-5-CARBOXYLATE SYNTHASE (P5CS) and PROLINE DEHYDROGENASE (ProDH) genes at the vegetative stage with respect to net proline biosynthesis and degradation fluxes in leaves having a different sink/source balance. We showed that the underexpression of three P5CS1 genes in source leaves was accompanied by a reduced commitment of de novo assimilated 15N towards proline biosynthesis and an overall depletion of free proline content. We found that the expression of ProDH genes was strongly induced by carbon starvation conditions (dark-induced senescence) compared with early senescing leaves. Our results suggested a role for proline catabolism in B. napus, but acting only at a late stage of senescence. In addition, we also identified some P5CS and ProDH genes that were differentially expressed during multiple processes (leaf status, dark to light transition, and stress response).
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