High biomass turnover rates of endosymbiotic nitrogen‐fixing cyanobacteria in the western Bering Sea
Limnology and Oceanography Letters, 2022 Recent studies have described active nitrogen fixation in high‐latitude waters, but the ecological controls on the occurrence or activity of nitrogen‐fixing organisms (diazotrophs) in such systems remain unknown.
Shunyan Cheung +9 more
doaj +1 more source
Seasonal and spatial patterns in diazotroph community composition at Station ALOHA
Frontiers in Marine Science, 2023 Dinitrogen (N2) fixation is carried out by specialized microbes, called diazotrophs, and is a major source of nitrogen supporting primary production in oligotrophic oceans.
Kendra A. Turk-Kubo +5 more
doaj +1 more source
Sediments as Potential Sources of Non-Cyanobacterial Diazotrophs in Arctic Sea Ice and Seawater. [PDF]
Environ Microbiol RepDiazotrophic communities across Arctic environments: Integrated analyses of diazotrophs in sea ice, seawater, and sediments show that Arctic continental shelf sediments function as a central reservoir, supplying diazotrophs to both sea ice and seawater through resuspension processes.
Bo H +10 more
europepmc +2 more sources
Distribution and drivers of symbiotic and free-living diazotrophic cyanobacteria in the western tropical South Pacific [PDF]
Biogeosciences, 2018 The abundance and distribution of cyanobacterial diazotrophs were quantified in two regions (Melanesian archipelago, MA; and subtropical gyre, SG) of the western tropical South Pacific using nifH quantitative polymerase chain reaction (qPCR) assays ...
M. Stenegren +5 more
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Temperate southern Australian coastal waters are characterised by surprisingly high rates of nitrogen fixation and diversity of diazotrophs [PDF]
PeerJ, 2021 Biological dinitrogen (N2) fixation is one mechanism by which specific microorganisms (diazotrophs) can ameliorate nitrogen (N) limitation. Historically, rates of N2 fixation were believed to be limited outside of the low nutrient tropical and ...
Lauren F. Messer +4 more
doaj +2 more sources
PLoS Computational Biology, 2021 Marine nitrogen-fixing microorganisms are an important source of fixed nitrogen in oceanic ecosystems. The colonial cyanobacterium Trichodesmium and diatom symbionts were thought to be the primary contributors to oceanic N2 fixation until the discovery ...
Debolina Sarkar +5 more
doaj +1 more source
Genetic diversity of the unicellular nitrogen‐fixing cyanobacteria
Environmental Microbiology, 2014 Summary Symbiotic interactions between nitrogen‐fixing prokaryotes and photosynthetic eukaryotes are an integral part of biological nitrogen fixation at a global scale. One of these partnerships involves the cyanobacterium UCYN ‐ A ...
Thompson A +5 more
openaire +5 more sources
Diazotroph community succession during the VAHINE mesocosm experiment (New Caledonia lagoon) [PDF]
Biogeosciences, 2015 The VAHINE mesocosm experiment, conducted in the low-nutrient low-chlorophyll waters of the Noumea lagoon (coastal New Caledonia) was designed to trace the incorporation of nitrogen (N) fixed by diazotrophs into the food web, using large volume (50 m3 ...
K. A. Turk-Kubo +5 more
doaj +1 more source
Biology, 2021 The variation of diazotrophs has been elusive in multiple SCS and WPO regions due to insufficient data. Therefore, the dynamics of diazotrophic composition and distribution were investigated in this study, based on high-throughput sequencing and ...
Changling Ding +5 more
doaj +1 more source
Salinity as a key control on the diazotrophic community composition in the southern Baltic Sea [PDF]
Ocean Science, 2022 Over the next decade, the Baltic Sea is predicted to undergo severe changes including decreased salinity due to altered precipitation related to climate changes.
C. F. Reeder +4 more
doaj +1 more source