Results 101 to 110 of about 12,024 (210)
Background Holobionts comprising nitrogen-fixing diazotrophs and phytoplankton or zooplankton are ubiquitous in the pelagic sea. However, neither the community structure of plankton-associated diazotrophs (PADs) nor their nitrogenase transcriptional ...
Qing-Song Yang +8 more
doaj +1 more source
The use of synthetic nitrogen fertilizers to grow biofuel crops adds to the economic and environmental costs of biomass production. Biological nitrogen fixation provides an alternative, eco-friendly source of nitrogen for leguminous plants and some ...
Rahul A. Bahulikar +5 more
doaj +1 more source
High nitrogen fixation and Braarudosphaera presence in the North Sea
Abstract Nitrogen fixation, the microbial conversion of dinitrogen gas to ammonia, is a key nitrogen source and critical for sustaining marine productivity. We investigated the diversity and activity of nitrogen‐fixers in surface waters of the North Sea and Norwegian coast during July 2023.
Kendra Turk‐Kubo +10 more
wiley +1 more source
Identity and function of an essential nitrogen ligand of the nitrogenase cofactor biosynthesis protein NifB. [PDF]
NifB is a radical S-adenosyl-L-methionine (SAM) enzyme that is essential for nitrogenase cofactor assembly. Previously, a nitrogen ligand was shown to be involved in coupling a pair of [Fe4S4] clusters (designated K1 and K2) concomitant with carbide ...
Britt, R David +7 more
core +1 more source
Abstract Green tides caused by Ulva species have become one of the most serious marine ecological disasters, now impacting many coastal nations around the world. Although climatic and environmental drivers of these macroalgal blooms are well recognized, growing evidence identifies Ulva‐associated microbiota as potential pivotal regulators of bloom ...
Zhangyi Xia +6 more
wiley +1 more source
Predicting taxonomic and functional structure of microbial communities in acid mine drainage. [PDF]
Predicting the dynamics of community composition and functional attributes responding to environmental changes is an essential goal in community ecology but remains a major challenge, particularly in microbial ecology.
Chen, Linxing +10 more
core
Diazotroph community succession during the VAHINE mesocosm experiment (New Caledonia lagoon) [PDF]
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 m(3))
Bonnet, Sophie +5 more
core +2 more sources
Abstract Biological nitrogen fixation is the process by which certain bacteria and archaea use the enzyme nitrogenase to reduce atmospheric nitrogen into bioavailable ammonium. Engineering non‐nitrogen‐fixing organisms, like plants, to use nitrogenase could reduce dependency on synthetic fertilizer and mitigate the environmental impacts of industrial ...
Adity Biswas +2 more
wiley +1 more source
The coral holobiont often resides in oligotrophic waters; both coral cells and their symbiotic dinoflagellates possess ammonium assimilation enzymes and potentially benefit from the nitrogen fixation of coral-associated diazotrophs. However, the seasonal
Yanying Zhang +9 more
doaj +1 more source
Contrasted Reactivity to Oxygen Tensions in Frankia sp. Strain CcI3 throughout Nitrogen Fixation and Assimilation [PDF]
Reconciling the irreconcilable is a primary struggle in aerobic nitrogen-fixing bacteria. Although nitrogenase is oxygen and reactive oxygen species-labile, oxygen tension is required to sustain respiration.
Beauchemin, Nicholas +6 more
core +4 more sources

