Results 61 to 70 of about 5,856 (217)

Organic metabolite uptake by diazotrophs in the North Pacific Ocean [PDF]

open access: yes
Dinitrogen (N₂) fixation by diazotrophs supports ocean productivity. Diazotrophs include photoautotrophic cyanobacteria, non-cyanobacterial diazotrophs (NCDs), and the recently discovered N2-fixing haptophyte.
Grosso, Olivier   +25 more
core   +1 more source

Aspects of the Ecology and Significance of Marine Diazotrophs [PDF]

open access: yes, 2023
Nitrogen (N2) fixation is an important component of the nitrogen cycle, supports primary production by supplying biologically available nitrogen, particularly in oligotrophic regions of the world’s oceans where nitrogen availability often limits growth ...
Mak, Wing Kwan Esther
core  

Assessing the Effect of Slope Position on the Community Assemblage of Soil Diazotrophs and Root Arbuscular Mycorrhizal Fungi

open access: yesJournal of Fungi, 2023
Considering the crucial role of soil diazotrophs and root arbuscular mycorrhizal fungi (AMF) in soil nutrient cycling during ecosystem restoration, diazotroph and AMF communities may be determined by slope position.
Dan Xiao   +4 more
doaj   +1 more source

Nutrient supply ratios and size‐structured competition regulate global diatom ecology and biogeochemistry

open access: yesLimnology and Oceanography, Volume 71, Issue 11, November 2026.
Abstract Diatoms are major contributors to oceanic photosynthesis and global biogeochemical cycling, particularly through their role in the silicon cycle. Previous theories have emphasized the importance of silicon‐to‐nitrogen (Si : N) ratios in regulating diatom ecology.
Ben A. Ward   +3 more
wiley   +1 more source

Inoculation of sugarcane with diazotrophic bacteria [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2014
The sugarcane industry, a strategic crop in Brazil, requires technological improvements in production efficiency to increase the crop energy balance. Among the various currently studied alternatives, inoculation with diazotrophic bacteria proved to be a technology with great potential. In this context, the efficiency of a mixture of bacterial inoculant
Schultz, Nivaldo   +11 more
openaire   +4 more sources

Nitrogen fixation rate of diazotrophs and their nitrogen fixation in the tropical and subtropical western North Pacific

open access: yes, 2013
Nitrogen fixation rate of diazotrophs and their nitrogen fixation in the tropical and subtropical western North ...
Kitajima, Satoshi   +9 more
core   +1 more source

Taxon‐specific community structure partitions marine particle size spectra into stable and dynamic components

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 6, November 2026.
Abstract Oceanic particle size distributions (PSDs) link plankton community structure to biogeochemical cycling. Although the influence of community composition on size spectra is well recognized in theoretical approaches, long‐term empirical evidence connecting taxon‐specific variability to bulk PSD structure remains limited.
Fernanda Henderikx‐Freitas   +2 more
wiley   +1 more source

Identification of nif genes of heterotrophic and endophytic diazotrophs associated with rice (Oryza sativa L.,) by targeted DNA finger printing [PDF]

open access: yes, 2011
Heterotrophic and endophytic diazotrophs were isolated from rhizosphere soil, rhizoplane, roots and stems of different rice varieties. A total of thirteen isolates obtained were subjected to acetylene reduction assay (ARA) and eight isolates recorded ...
Sugitha, TCK, Kumar, K
core   +1 more source

Anthropogenic impact on diazotrophic diversity in the mangrove rhizosphere revealed by nifH pyrosequencing

open access: yesFrontiers in Microbiology, 2015
Diazotrophs in the mangrove rhizosphere play a major role in providing new nitrogen to the mangrove ecosystem and their composition and activity are strongly influenced by anthropogenic activity and ecological conditions.
Hongmei eJing   +5 more
doaj   +1 more source

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

open access: yesOikos, Volume 2026, Issue 11, November 2026.
Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain.
Steven K. Schmidt   +12 more
wiley   +1 more source

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