ArticlePloS one2018
A quantitative model of nitrogen fixation in the presence of ammonium.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 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
35 citing papers in PubMed, 80 citations in OpenAlex.
- Article
- Metabolic biochemical models of NmSystems · 2025Article
- Modeling dynamic oxygen permeability as a mechanism to mitigate oxygen-induced stresses on photosynthesis and NMicrobiology spectrum · 2025Article
- Evaluation of nitrogen fixation in the marine purple photosynthetic bacterium Rhodovulum sulfidophilum under autotrophic and heterotrophic conditions.Scientific reports · 2025Article
- Soil microclimate and vegetation dynamics shape elevational and seasonal variations of diazotrophic communities in alpine grasslands.Frontiers in plant science · 2025Article
- Eddy-driven diazotroph distribution in the subtropical North Atlantic: horizontal variability prevails over particle sinking speed.Communications biology · 2024Article
- High Growth Rate of Diatoms Explained by Reduced Carbon Requirement and Low Energy Cost of Silica Deposition.Microbiology spectrum · 2023Article
- Standards, dissemination, and best practices in systems biology.Current opinion in biotechnology · 2023Review
- Mechanisms for Generating Low Potential Electrons across the Metabolic Diversity of Nitrogen-Fixing Bacteria.Applied and environmental microbiology · 2023Review
- A diazotrophy-ammoniotrophy dual growth model for the sulfate reducing bacteriumComputational and structural biotechnology journal · 2023Article
- Holistic view of biological nitrogen fixation and phosphorus mobilization inFrontiers in microbiology · 2023Article
- Article
- Dark Diazotrophy during the Late Summer in Surface Waters of Chile Bay, West Antarctic Peninsula.Microorganisms · 2022Article
- Heat stress reduces the contribution of diazotrophs to coral holobiont nitrogen cycling.The ISME journal · 2022Article
- Nitrogen fixation: a poorly understood process along the freshwater-marine continuum.Limnology and oceanography letters · 2022Article
- Contribution of Heterotrophic Diazotrophs to NFrontiers in microbiology · 2022Article
- Article
- Depth-dependent variability of biological nitrogen fixation and diazotrophic communities in mangrove sediments.Microbiome · 2021Article
- Quantifying nitrogen fixation by heterotrophic bacteria in sinking marine particles.Nature communications · 2021Article
- Comparison of Diazotrophic Composition and Distribution in the South China Sea and the Western Pacific Ocean.Biology · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Nitrogen fixation provides bioavailable nitrogen, supporting global ecosystems and influencing global cycles of other elements. It provides an additional source of nitrogen to organisms at a cost of lower growth efficiency, largely due to respiratory control of intra-cellular oxygen. Nitrogen-fixing bacteria can, however, utilize both dinitrogen gas and fixed nitrogen, decreasing energetic costs. Here we present an idealized metabolic model of the heterotrophic nitrogen fixer Azotobacter vinelandii which, constrained by laboratory data, provides quantitative predictions for conditions under which the organism uses either ammonium or nitrogen fixation, or both, as a function of the relative supply rates of carbohydrate, fixed nitrogen as well as the ambient oxygen concentration. The model reveals that the organism respires carbohydrate in excess of energetic requirements even when nitrogen fixation is inhibited and respiratory protection is not essential. The use of multiple nitrogen source expands the potential niche and range for nitrogen fixation. The model provides a quantitative framework which can be employed in ecosystem and biogeochemistry models.
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.