ArticlePloS one2011
Acquisition and assimilation of nitrogen as peptide-bound and D-enantiomers of amino acids by wheat.
Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
27 citing papers in PubMed, 141 citations in OpenAlex.
- Investigating GERMs: how genotype, environment, and rhizosphere microbiome interactions underlie heat response in maize and sorghum.The New phytologist · 2026Article
- D-amino acid aminotransferase1 regulates grain chalkiness in rice by modulating endoplasmic reticulum stress response.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Investigating GERMs: How Genotype, Environment, and Rhizosphere Microbiome interactions underlie heat response in maize and sorghum.bioRxiv : the preprint server for biology · 2025Article
- Preparation, characterization, antioxidant activity evaluation, and potential application of Peruvian squid liver protein hydrolysates.Food chemistry: X · 2025Article
- A translation proofreader of archaeal origin imparts multi-aldehyde stress tolerance to land plants.eLife · 2024Article
- Ammonia leakage can underpin nitrogen-sharing among soil microorganisms.The ISME journal · 2024Article
- Nitrogen and Carbon Mineralization from Green and Senesced Leaf Litter Differ between Cycad and Angiosperm Trees.Biology · 2022Article
- Plant Biostimulants from Cyanobacteria: An Emerging Strategy to Improve Yields and Sustainability in Agriculture.Plants (Basel, Switzerland) · 2021Review
- Soil organic nitrogen: an overlooked but potentially significant contribution to crop nutrition.Plant and soil · 2021Review
- Nitrogen Use Efficiency Definitions of Today and Tomorrow.Frontiers in plant science · 2021Article
- Review
- Angiosperm symbioses with non-mycorrhizal fungal partners enhance N acquisition from ancient organic matter in a warming maritime Antarctic.Ecology letters · 2019Article
- Chiral checkpoints during protein biosynthesis.The Journal of biological chemistry · 2019Review
- Wide-spread limitation of soil organic nitrogen transformations by substrate availability and not by extracellular enzyme content.Soil biology & biochemistry · 2019Article
- AtDAT1 Is a Key Enzyme of D-Amino Acid Stimulated Ethylene Production inFrontiers in plant science · 2019Article
- TyrR is involved in the transcriptional regulation of biofilm formation and D-alanine catabolism in Azospirillum brasilense Sp7.PloS one · 2019Article
- d-Amino Acids Are Exuded by Arabidopsis thaliana Roots to the Rhizosphere.International journal of molecular sciences · 2018Article
- New Insights Into the Mechanisms and Biological Roles of D-Amino Acids in Complex Eco-Systems.Frontiers in microbiology · 2018Review
- The carbon bonus of organic nitrogen enhances nitrogen use efficiency of plants.Plant, cell & environment · 2017Article
- Nitrogen fluxes at the root-soil interface show a mismatch of nitrogen fertilizer supply and sugarcane root uptake capacity.Scientific reports · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitrogen is a key regulator of primary productivity in many terrestrial ecosystems. Historically, only inorganic N (NH(4)(+) and NO(3)(-)) and L-amino acids have been considered to be important to the N nutrition of terrestrial plants. However, amino acids are also present in soil as small peptides and in D-enantiomeric form. We compared the uptake and assimilation of N as free amino acid and short homopeptide in both L- and D-enantiomeric forms. Sterile roots of wheat (Triticum aestivum L.) plants were exposed to solutions containing either (14)C-labelled L-alanine, D-alanine, L-trialanine or D-trialanine at a concentration likely to be found in soil solution (10 µM). Over 5 h, plants took up L-alanine, D-alanine and L-trialanine at rates of 0.9±0.3, 0.3±0.06 and 0.3±0.04 µmol g(-1) root DW h(-1), respectively. The rate of N uptake as L-trialanine was the same as that as L-alanine. Plants lost ca.60% of amino acid C taken up in respiration, regardless of the enantiomeric form, but more (ca.80%) of the L-trialanine C than amino acid C was respired. When supplied in solutions of mixed N form, N uptake as D-alanine was ca.5-fold faster than as NO(3)(-), but slower than as L-alanine, L-trialanine and NH(4)(+). Plants showed a limited capacity to take up D-trialanine (0.04±0.03 µmol g(-1) root DW h(-1)), but did not appear to be able to metabolise it. We conclude that wheat is able to utilise L-peptide and D-amino acid N at rates comparable to those of N forms of acknowledged importance, namely L-amino acids and inorganic N. This is true even when solutes are supplied at realistic soil concentrations and when other forms of N are available. We suggest that it may be necessary to reconsider which forms of soil N are important in the terrestrial N cycle.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.