ArticleThe ISME journal2016
N2-fixation, ammonium release and N-transfer to the microbial and classical food web within a plankton community.
Article in The ISME journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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Who cites it
42 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.
- Pooled it
- Impact of diazotrophs on marine food webs and the biological carbon pump: progress and remaining challenges.The ISME journal · 2026Review
- Physicochemistry and comparative metagenomics of a tropical estuary persistently inundated with anthropogenic pollutants.Folia microbiologica · 2025Article
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- Light-driven integration of diazotroph-derived nitrogen in euphotic nitrogen cycle.Nature communications · 2024Article
- Effects of salinity and nutrient stress on a toxic freshwater cyanobacterial community and its associated microbiome: An experimental study.Environmental microbiology reports · 2024Article
- Single cell dynamics and nitrogen transformations in the chain forming diatom Chaetoceros affinis.The ISME journal · 2023Article
- Live tracking metabolic networks and physiological responses within microbial assemblages at single-cell level.PNAS nexus · 2023Article
- A suggested climate service for cyanobacteria blooms in the Baltic Sea - Comparing three monitoring methods.Harmful algae · 2022Article
- Bacterioplankton Zonation Does Exist in High Elevation, Polymictic Lakes.Frontiers in microbiology · 2022Article
- NanoSIP: NanoSIMS Applications for Microbial Biology.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Phytoplankton Morpho-Functional Trait Variability along Coastal Environmental Gradients.Microorganisms · 2021Article
- Article
- Article
- Depicting Temporal, Functional, and Phylogenetic Patterns in Estuarine Diazotrophic Communities from Environmental DNA and RNA.Microbial ecology · 2021Article
- Heterocyst Development and Diazotrophic Growth ofLife (Basel, Switzerland) · 2020Article
- Unusual marine cyanobacteria/haptophyte symbiosis relies on NThe ISME journal · 2020Article
- Review
- Advances in monitoring soil microbial community dynamic and function.Journal of applied genetics · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We investigated the role of N2-fixation by the colony-forming cyanobacterium, Aphanizomenon spp., for the plankton community and N-budget of the N-limited Baltic Sea during summer by using stable isotope tracers combined with novel secondary ion mass spectrometry, conventional mass spectrometry and nutrient analysis. When incubated with (15)N2, Aphanizomenon spp. showed a strong (15)N-enrichment implying substantial (15)N2-fixation. Intriguingly, Aphanizomenon did not assimilate tracers of (15)NH4(+) from the surrounding water. These findings are in line with model calculations that confirmed a negligible N-source by diffusion-limited NH4(+) fluxes to Aphanizomenon colonies at low bulk concentrations (<250 nm) as compared with N2-fixation within colonies. No N2-fixation was detected in autotrophic microorganisms <5 μm, which relied on NH4(+) uptake from the surrounding water. Aphanizomenon released about 50% of its newly fixed N2 as NH4(+). However, NH4(+) did not accumulate in the water but was transferred to heterotrophic and autotrophic microorganisms as well as to diatoms (Chaetoceros sp.) and copepods with a turnover time of ~5 h. We provide direct quantitative evidence that colony-forming Aphanizomenon releases about half of its recently fixed N2 as NH4(+), which is transferred to the prokaryotic and eukaryotic plankton forming the basis of the food web in the plankton community. Transfer of newly fixed nitrogen to diatoms and copepods furthermore implies a fast export to shallow sediments via fast-sinking fecal pellets and aggregates. Hence, N2-fixing colony-forming cyanobacteria can have profound impact on ecosystem productivity and biogeochemical processes at shorter time scales (hours to days) than previously thought.
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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.