ArticleNature communications2022
Overlooked and widespread pennate diatom-diazotroph symbioses in the sea.
Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 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
28 citing papers in PubMed.
- Effects of Extreme Rainfall on a Dominant Seaweed Are Mitigated by Its Microbiota.Ecology and evolution · 2026Article
- Genomes of NBMC genomics · 2026Article
- Impact of diazotrophs on marine food webs and the biological carbon pump: progress and remaining challenges.The ISME journal · 2026Review
- Article
- Review
- Ecosystem consequences of a nitrogen-fixing proto-organelle.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Genomes of nitrogen-fixing eukaryotes reveal an alternate path for organellogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Patterns and drivers of diatom diversity and abundance in the global ocean.Nature communications · 2025Article
- Article
- Novel pennate diatom symbionts support high NISME communications · 2025Article
- Adaptive Responses of Cyanobacteria to Phosphate Limitation: A Focus on Marine Diazotrophs.Environmental microbiology · 2024Review
- From nets to networks: tools for deciphering phytoplankton metabolic interactions within communities and their global significance.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- Convergent reductive evolution of cyanobacteria in symbiosis with Dinophysiales dinoflagellates.Scientific reports · 2024Article
- Article
- Exploring the prokaryote-eukaryote interplay in microbial mats from an Andean athalassohaline wetland.Microbiology spectrum · 2024Article
- Diurnal transcriptional variation is reduced in a nitrogen-fixing diatom endosymbiont.The ISME journal · 2024Article
- The genome sequences of the marine diatomWellcome open research · 2024Article
- The endosymbiont ofISME communications · 2024Article
- Marine nitrogen-fixers in the Canadian Arctic Gateway are dominated by biogeographically distinct noncyanobacterial communities.FEMS microbiology ecology · 2023Article
- Non-cyanobacterial diazotrophs: global diversity, distribution, ecophysiology, and activity in marine waters.FEMS microbiology reviews · 2023Review
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.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Persistent nitrogen depletion in sunlit open ocean waters provides a favorable ecological niche for nitrogen-fixing (diazotrophic) cyanobacteria, some of which associate symbiotically with eukaryotic algae. All known marine examples of these symbioses have involved either centric diatom or haptophyte hosts. We report here the discovery and characterization of two distinct marine pennate diatom-diazotroph symbioses, which until now had only been observed in freshwater environments. Rhopalodiaceae diatoms Epithemia pelagica sp. nov. and Epithemia catenata sp. nov. were isolated repeatedly from the subtropical North Pacific Ocean, and analysis of sequence libraries reveals a global distribution. These symbioses likely escaped attention because the endosymbionts lack fluorescent photopigments, have nifH gene sequences similar to those of free-living unicellular cyanobacteria, and are lost in nitrogen-replete medium. Marine Rhopalodiaceae-diazotroph symbioses are a previously overlooked but widespread source of bioavailable nitrogen in marine habitats and provide new, easily cultured model organisms for the study of organelle evolution.
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.