Biological N2 Fixation in the Upwelling Region off NW Iberia: Magnitude, Relevance, and Players
Frontiers in Marine Science, 2017 The classical paradigm about marine N2 fixation establishes that this process is mainly constrained to nitrogen-poor tropical and subtropical regions, and sustained by the colonial cyanobacterium Trichodesmium spp.
Víctor Moreira-Coello +6 more
doaj +2 more sources
Nitrogen fixation in the western English Channel (NE Atlantic Ocean) [PDF]
, 2009 In temperate Atlantic waters (18.8 to 20.1°C), biological nitrogen fixation has beendemonstrated by 2 independent measurements: 15N-N2 incorporation and nifH identification in theDNA and expressed messenger RNA (mRNA).
Kelly-Gerreyn, BA +5 more
core +1 more source
The amount but not the proportion of N2 fixation and transfers to neighboring plants varies across grassland soils [PDF]
, 2020 Biological nitrogen fixation (BNF) is an important nitrogen source for both N2-fixers and their neighboring plants in natural and managed ecosystems.
Cardenas, L. M. +5 more
core +1 more source
Free atmospheric CO2 enrichment increased above ground biomass but did not affect symbiotic N2-fixation and soil carbon dynamics in a mixed deciduous stand in Wales [PDF]
, 2011 Through increases in net primary production (NPP), elevated CO2 is hypothesizes to increase the amount of plant litter entering the soil. The fate of this extra carbon on the forest floor or in mineral soil is currently not clear.
A. R. Smith +14 more
core +1 more source
Diversity and Efficiency of Rhizobia Communities from Iron Mining Areas Using Cowpea as a Trap Plant
Revista Brasileira de Ciência do Solo, 2017 Mining is an important economic activity. However, its impact on environment must be accessed, mainly on relevant processes for their sustainability. The objective of this study was to evaluate the diversity and efficiency of symbiotic nitrogen fixing ...
Jordana Luísa de Castro +5 more
doaj +1 more source
Importance of N2-Fixation on the Productivity at the North-Western Azores Current/Front System, and the Abundance of Diazotrophic Unicellular Cyanobacteria. [PDF]
PLoS ONE, 2016 To understand the impact of the northwestern Azores Current Front (NW-AzC/AzF) system on HCO3--and N2-fixation activities and unicellular diazotrophic cyanobacteria (UCYN) distribution, we combined geochemical and biological approaches from the ...
Virginie Riou +12 more
doaj +1 more source
Frontiers in Marine Science, 2022 Molybdenum plays an important role in marine biological activity, especially in nitrogen cycling as a cofactor for N2 fixation and nitrate reductase. However, the dissolved Mo (dMo) behavior and its interaction with N cycling in the coastal waters is ...
Jinqi Fan +19 more
doaj +1 more source
mBio, 2015 The ability to reduce atmospheric nitrogen (N2) to ammonia, known as N2 fixation, is a widely distributed trait among prokaryotes that accounts for an essential input of new N to a multitude of environments.
Mikkel Bentzon-Tilia +3 more
doaj +1 more source
Evaluating the balance between vertical diffusive nitrate supply and nitrogen fixation with reference to nitrate uptake in the eastern subtropical North Atlantic Ocean [PDF]
, 2013 The balance between N2 fixation and diffusive NO3− supply is a key determinant for assessing the importance of both processes for new production in subtropical waters.
Forryan, Alexander +3 more
core +1 more source
Moss-cyanobacteria associations as biogenic sources of nitrogen in boreal forest ecosystems
Frontiers in Microbiology, 2013 The biological fixation of atmospheric nitrogen (N) is a major pathway for available N entering ecosystems. In N-limited boreal forests, a significant amount of N2 is fixed by cyanobacteria living in association with mosses, contributing up to 50 % to ...
Kathrin eRousk +2 more
doaj +1 more source