Results 31 to 40 of about 9,408 (223)

Agrobacterium tumefaciens Is a Diazotrophic Bacterium [PDF]

open access: yesApplied and Environmental Microbiology, 1990
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

Deep-Sea Archaea Fix and Share Nitrogen in Methane-Consuming Microbial Consortia [PDF]

open access: yes, 2009
Nitrogen-fixing (diazotrophic) microorganisms regulate productivity in diverse ecosystems; however, the identities of diazotrophs are unknown in many oceanic environments. Using single-cell–resolution nanometer secondary ion mass spectrometry images of ^(
Dekas, Anne E.   +2 more
core   +2 more sources

Analysis of nifH-RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N2-fixing community depending on depth and agricultural use of soil [PDF]

open access: yes, 2017
In this survey, a total of 80 787 reads and 28 171 unique NifH protein sequences were retrieved from soil RNA. This dataset extends our knowledge about the structure and diversity of the functional diazotrophic communities in agricultural soils from ...
Aguilar, Orlando Mario   +4 more
core   +3 more sources

Impacts of organic and conventional crop management on diversity and activity of free-living nitrogen fixing bacteria and total bacteria are subsidiary to temporal effects [PDF]

open access: yes, 2012
A three year field study (2007-2009) of the diversity and numbers of the total and metabolically active free-living diazotophic bacteria and total bacterial communities in organic and conventionally managed agricultural soil was conducted at the ...
A. Mark Ibekwe   +72 more
core   +12 more sources

Molecular evidence for sediment nitrogen fixation in a temperate New England estuary [PDF]

open access: yes, 2016
Primary production in coastal waters is generally nitrogen (N) limited with denitrification outpacing nitrogen fixation (N2-fixation). However, recent work suggests that we have potentially underestimated the importance of heterotrophic sediment N2 ...
Foster, Sarah Q.   +3 more
core   +3 more sources

Seasonal modulation of mesoscale processes alters nutrient availability and plankton communities in the Red Sea [PDF]

open access: yes, 2019
Hydrographic and atmospheric forcing set fundamental constraints on the biogeochemistry of aquatic ecosystems and manifest in the patterns of nutrient availability and recycling, species composition of communities, trophic dynamics, and ecosystem ...
Al-Aidaroos, Ali M.   +9 more
core   +1 more source

The Unique Biogeochemical Signature of the Marine Diazotroph Trichodesmium [PDF]

open access: yesFrontiers in Microbiology, 2012
The elemental composition of phytoplankton can depart from canonical Redfield values under conditions of nutrient limitation or production (e.g., N fixation). Similarly, the trace metal metallome of phytoplankton may be expected to vary as a function of both ambient nutrient concentrations and the biochemical processes of the cell.
Nuester, Jochen   +4 more
openaire   +3 more sources

Multiomic Approaches Reveal Hormonal Modulation and Nitrogen Uptake and Assimilation in the Initial Growth of Maize Inoculated with Herbaspirillum seropedicae

open access: yesPlants, 2022
Herbaspirillum seropedicae is an endophytic bacterium that can fix nitrogen and synthesize phytohormones, which can lead to a plant growth-promoting effect when used as a microbial inoculant.
Luiz Eduardo Souza da Silva Irineu   +10 more
doaj   +1 more source

Taxonomy and Phylogeny of Diazotrophs

open access: yes, 1998
The biodiversity of nitrogen-fixing organisms is huge. Taxonomic and phylogenetic research is needed to structure this diversity, to facilitate communication among scientists, and to increase our understanding of the evolution and biology of diazotrophs.
Lindström, K.   +8 more
openaire   +3 more sources

Inoculation of diazotrophic bacteria in chicory [PDF]

open access: yesHorticultura Brasileira, 2020
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

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