ArticlePloS one2013
Discovery of an endosymbiotic nitrogen-fixing cyanobacterium UCYN-A in Braarudosphaera bigelowii (Prymnesiophyceae).
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 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
55 citing papers in PubMed.
- Diel remodeling and cellular integration of the nitroplast.bioRxiv : the preprint server for biology · 2026Article
- Picophytoplankton implicated in productivity and biogeochemistry in the North Pacific Transition Zone.mSystems · 2026Article
- Genomes of NBMC genomics · 2026Article
- Balancing photosynthesis and respiration in North Pacific protist communities.The ISME journal · 2026Article
- Impact of diazotrophs on marine food webs and the biological carbon pump: progress and remaining challenges.The ISME journal · 2026Review
- Article
- Eukaryogenesis From FECA to LECA: Radical Steps Along the Way.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025Review
- Comparative Genomics Insights Into the Evolutionary Disparities Between Nitroplast-Evolved Ecotype UCYN-A2 and Its Closest Relative UCYN-A1.Ecology and evolution · 2025Article
- Protein import into bacterial endosymbionts and evolving organelles.The FEBS journal · 2025Review
- Investigation of themBio · 2025Article
- The protist community of the oligotrophic waters of the Gulf of Mexico is distinctly shaped by depth-specific physicochemical conditions during the warm season.FEMS microbiology ecology · 2025Article
- Puzzling out the ecological niche construction for nitrogen fixers in a coastal upwelling system.ISME communications · 2025Article
- Plankton food web structure and productivity under ocean alkalinity enhancement.Science advances · 2024Article
- Phagotrophy in the nitrogen-fixing haptophyte Braarudosphaera bigelowii.Environmental microbiology reports · 2024Article
- Metagenomics reveals the genetic diversity between sublineages of UCYN-A and their algal host plastids.ISME communications · 2024Article
- The endosymbiont ofISME communications · 2024Article
- Microevolutionary patterns in ecotypes of the symbiotic cyanobacterium UCYN-A revealed from a Northwest Atlantic coastal time series.Science advances · 2023Article
- Microalgal and Nitrogen-Fixing Bacterial Consortia: From Interaction to Biotechnological Potential.Plants (Basel, Switzerland) · 2023Review
- Symbiotic UCYN-A strains co-occurred with El Niño, relaxed upwelling, and varied eukaryotes over 10 years off Southern California.ISME communications · 2023Article
- Culture-Independent Single-Cell PacBio Sequencing Reveals EpibioticMicroorganisms · 2023Article
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.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Braarudosphaera bigelowii (Prymnesiophyceae) is a coastal coccolithophore with a long fossil record, extending back to the late Cretaceous (ca. 100 Ma). A recent study revealed close phylogenetic relationships between B. bigelowii, Chrysochromulina parkeae (Prymnesiophyceae), and a prymnesiophyte that forms a symbiotic association with the nitrogen-fixing cyanobacterium UCYN-A. In order to further examine these relationships, we conducted transmission electron microscopic and molecular phylogenetic studies of B. bigelowii. TEM studies showed that, in addition to organelles, such as the nucleus, chloroplasts and mitochondria, B. bigelowii contains one or two spheroid bodies with internal lamellae. In the 18S rDNA tree of the Prymnesiophyceae, C. parkeae fell within the B. bigelowii clade, and was close to B. bigelowii Genotype III (99.89% similarity). Plastid 16S rDNA sequences obtained from B. bigelowii were close to the unidentified sequences from the oligotrophic SE Pacific Ocean (e.g. HM133411) (99.86% similarity). Bacterial16S rDNA sequences obtained from B. bigelowii were identical to the UCYN-A sequence AY621693 from Arabian Sea, and fell in the UCYN-A clade. From these results, we suggest that; 1) C. parkeae is the alternate life cycle stage of B. bigelowii sensu stricto or that of a sibling species of B. bigelowii, and 2) the spheroid body of B. bigelowii originated from endosymbiosis of the nitrogen-fixing cyanobacterium UCYN-A.
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.