Results 21 to 30 of about 5,856 (217)
Arbuscular mycorrhizal fungi (AMF) and diazotrophs have the potential for nutrient transfer and biological nitrogen fixation in ecosystems, respectively.
He, X +17 more
core +1 more source
Nitrogen-fixing (diazotrophic) cyanobacteria provide a critical nutrient input to the ocean. Non-cyanobacterial diazotrophs are also thought to contribute, but they have not been observed to fix nitrogen.
Katie J. Harding +5 more
doaj +1 more source
Diazotrophs are overlooked contributors to carbon and nitrogen export to the deep ocean [PDF]
International audienceAbstract Diazotrophs are widespread microorganisms that alleviate nitrogen limitation in 60% of our oceans, thereby regulating marine productivity. Yet, the group-specific contribution of diazotrophs to organic matter export has not
Camps, Mercedes +14 more
core +1 more source
Lipopolysaccharides in diazotrophic bacteria [PDF]
Biological nitrogen fixation (BNF) is a process in which the atmospheric nitrogen (N2) is transformed into ammonia (NH3) by a select group of nitrogen-fixing organisms, or diazotrophic bacteria. In order to furnish the biologically useful nitrogen to plants, these bacteria must be in constant molecular communication with their host plants.
openaire +3 more sources
Grazing by local livestock is the traditional human practice in Qinghai-Tibetan Plateau grassland, and moderate intensity grazing can maintain high productivity and diversity of alpine grassland.
Shengnan Sun +10 more
doaj +1 more source
Specialized prokaryotes performing biological dinitrogen (N2) fixation (“diazotrophs”) provide an important source of fixed nitrogen in oligotrophic marine ecosystems such as tropical and subtropical oceans. In these waters, cyanobacterial photosynthetic
Mar Benavides +6 more
doaj +1 more source
Agrobacterium tumefaciens Is a Diazotrophic Bacterium [PDF]
This is the first report that Agrobacterium tumefaciens can fix nitrogen in a free-living condition as shown by its abilities to grow on nitrogen-free medium, reduce acetylene to ethylene, and incorporate 15 N supplied as 15 N 2 .
L, Kanvinde, G R, Sastry
openaire +2 more sources
Spatial variation in N2-fixation rate and diazotroph activity in the Tropical Atlantic [PDF]
A variety of N2-fixers occur in oligotrophic waters and these diazotrophs make a substantial contribution to the nitrogen budget of the upper water column.
J. P. Montoya, M. Voss, D. G. Capone
doaj +1 more source
Search for endophytic diazotrophs in barley seeds [PDF]
Eight endophytic isolates assigned to Pseudomonas, Azospirillum, and Bacillus genera according to pheno-genotypic features were retrieved from barley seeds under selective pressure for nitrogen-fixers. Genetic relationships among related isolates were investigated through RAPD.
S. Zawoznik, Myriam +3 more
openaire +5 more sources
Inoculation of diazotrophic bacteria in chicory [PDF]
ABSTRACT Inoculating crops with diazotrophic bacteria constitutes a feasible biotechnological tool to reduce or even avoid the use of nitrogen fertilizers and to improve the nutritional status of crops. However, the potential use of such technology is limited due to the lack of studies in diverse vegetable crops. We evaluated the production of chicory (
Caliane da S Braulio +5 more
openaire +3 more sources

