ArticleApplied and environmental microbiology2014
Urea uptake and carbon fixation by marine pelagic bacteria and archaea during the Arctic summer and winter seasons.
Article in Applied and environmental microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 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
26 citing papers in PubMed.
- Widespread marine and freshwater distributions of active sulfoquinovose-degrading bacteria.The ISME journal · 2026Article
- Cosmopolitan marine bacteria facilitate a vast phytoplankton-derived sulfonate-based carbon flow through sulfoquinovosidases.Nature communications · 2025Article
- Article
- Spatiotemporal and temperature-dependent disconnect between ammonia oxidation and dark DIC fixation in deep oligotrophic Lake Constance.ISME communications · 2025Article
- Urea assimilation and oxidation support activity of phylogenetically diverse microbial communities of the dark ocean.The ISME journal · 2024Article
- Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea.Frontiers in microbiology · 2023Article
- Depth drives the distribution of microbial ecological functions in the coastal western Antarctic Peninsula.Frontiers in microbiology · 2023Article
- Article
- Exaggerated trans-membrane charge of ammonium transporters in nutrient-poor marine environments.Open biology · 2022Article
- Diversity and Selection of Surface Marine Microbiomes in the Atlantic-Influenced Arctic.Frontiers in microbiology · 2022Article
- Article
- Article
- The Genomic Capabilities of Microbial Communities Track Seasonal Variation in Environmental Conditions of Arctic Lagoons.Frontiers in microbiology · 2021Article
- Stable Isotope Probing Identifies Bacterioplankton Lineages Capable of Utilizing Dissolved Organic Matter Across a Range of Bioavailability.Frontiers in microbiology · 2020Article
- Diversity and Composition of Pelagic Prokaryotic and Protist Communities in a Thin Arctic Sea-Ice Regime.Microbial ecology · 2019Article
- Cyanate and urea are substrates for nitrification by Thaumarchaeota in the marine environment.Nature microbiology · 2019Article
- Strong Seasonality in Arctic Estuarine Microbial Food Webs.Frontiers in microbiology · 2019Review
- Bacterial Diversity and Nitrogen Utilization Strategies in the Upper Layer of the Northwestern Pacific Ocean.Frontiers in microbiology · 2018Article
- Direct Utilization of Organic Nitrogen by Phytoplankton and Its Role in Nitrogen Cycling Within the Southern California Bight.Frontiers in microbiology · 2018Article
- Assessing the composition of microbial communities in textile wastewater treatment plants in comparison with municipal wastewater treatment plants.MicrobiologyOpen · 2017Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
How Arctic climate change might translate into alterations of biogeochemical cycles of carbon (C) and nitrogen (N) with respect to inorganic and organic N utilization is not well understood. This study combined 15N uptake rate measurements for ammonium, nitrate, and urea with 15N- and 13C-based DNA stable-isotope probing (SIP). The objective was to identify active bacterial and archeal plankton and their role in N and C uptake during the Arctic summer and winter seasons. We hypothesized that bacteria and archaea would successfully compete for nitrate and urea during the Arctic winter but not during the summer, when phytoplankton dominate the uptake of these nitrogen sources. Samples were collected at a coastal station near Barrow, AK, during August and January. During both seasons, ammonium uptake rates were greater than those for nitrate or urea, and nitrate uptake rates remained lower than those for ammonium or urea. SIP experiments indicated a strong seasonal shift of bacterial and archaeal N utilization from ammonium during the summer to urea during the winter but did not support a similar seasonal pattern of nitrate utilization. Analysis of 16S rRNA gene sequences obtained from each SIP fraction implicated marine group I Crenarchaeota (MGIC) as well as Betaproteobacteria, Firmicutes, SAR11, and SAR324 in N uptake from urea during the winter. Similarly, 13C SIP data suggested dark carbon fixation for MGIC, as well as for several proteobacterial lineages and the Firmicutes. These data are consistent with urea-fueled nitrification by polar archaea and bacteria, which may be advantageous under dark conditions.
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.