ArticleJournal of phycology2020
Unexpected presence of the nitrogen-fixing symbiotic cyanobacterium UCYN-A in Monterey Bay, California.
Article in Journal of phycology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Diel remodeling and cellular integration of the nitroplast.bioRxiv : the preprint server for biology · 2026Article
- Unveiling the contribution of particle-associated non-cyanobacterial diazotrophs to NCommunications biology · 2025Article
- Puzzling out the ecological niche construction for nitrogen fixers in a coastal upwelling system.ISME communications · 2025Article
- Isolation and biogeography of the oligotrophic ocean diazotroph, Crocosphaera waterburyi nov. sp.The ISME journal · 2024Article
- Non-cyanobacterial diazotrophs: global diversity, distribution, ecophysiology, and activity in marine waters.FEMS microbiology reviews · 2023Review
- Microevolutionary patterns in ecotypes of the symbiotic cyanobacterium UCYN-A revealed from a Northwest Atlantic coastal time series.Science advances · 2023Article
- Symbiotic UCYN-A strains co-occurred with El Niño, relaxed upwelling, and varied eukaryotes over 10 years off Southern California.ISME communications · 2023Article
- Primer design for the amplification of the ammonium transporter genes from the uncultured haptophyte algal species symbiotic with the marine nitrogen-fixing cyanobacterium UCYN-A1.Frontiers in microbiology · 2023Article
- Open ocean and coastal strains of the N2-fixing cyanobacterium UCYN-A have distinct transcriptomes.PloS one · 2023Article
- Cell-specific measurements show nitrogen fixation by particle-attached putative non-cyanobacterial diazotrophs in the North Pacific Subtropical Gyre.Nature communications · 2022Article
- The Diversity and Functional Capacity of Microbes Associated with Coastal Macrophytes.mSystems · 2022Article
- UCYN-A/haptophyte symbioses dominate NISME communications · 2021Article
- Integrating Stochastic and Deterministic Process in the Biogeography of NFrontiers in microbiology · 2021Article
- Nitrogen Fixation in a Changing Arctic Ocean: An Overlooked Source of Nitrogen?Frontiers in microbiology · 2020Review
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the last decade, the known biogeography of nitrogen fixation in the ocean has been expanded to colder and nitrogen-rich coastal environments. The symbiotic nitrogen-fixing cyanobacteria group A (UCYN-A) has been revealed as one of the most abundant and widespread nitrogen-fixers, and includes several sublineages that live associated with genetically distinct but closely related prymnesiophyte hosts. The UCYN-A1 sublineage is associated with an open ocean picoplanktonic prymnesiophyte, whereas UCYN-A2 is associated with the coastal nanoplanktonic coccolithophore Braarudosphaera bigelowii, suggesting that different sublineages may be adapted to different environments. Here, we study the diversity of nifH genes present at the Santa Cruz Municipal Wharf in the Monterey Bay (MB), California, and report for the first time the presence of multiple UCYN-A sublineages, unexpectedly dominated by the UCYN-A2 sublineage. Sequence and quantitative PCR data over an 8-year time-series (2011-2018) showed a shift toward increasing UCYN-A2 abundances after 2013, and a marked seasonality for this sublineage which was present during summer-fall months, coinciding with the upwelling-relaxation period in the MB. Increased abundances corresponded to positive temperature anomalies in MB, and we discuss the possibility of a benthic life stage of the associated coccolithophore host to explain the seasonal pattern. The dominance of UCYN-A2 in coastal waters of the MB underscores the need to further explore the habitat preference of the different sublineages in order to provide additional support for the hypothesis that UCYN-A1 and UCYN-A2 sublineages are different ecotypes.
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