Results 21 to 30 of about 4,509 (176)

Cloning and sequencing of the nifH gene ofDesulfovibrio gigas [PDF]

open access: yesFEMS Microbiology Letters, 1989
The Desulfovibrio gigas nifH gene has been cloned and sequenced. It consists of an open-reading frame of 822 base pairs encoding a 274 amino acid polypeptide. A potential ntrA-dependent promotor sequence is present. The gene lacks an upstream activator sequence homologous to those often found in nif genes subject to activation by nifA.
H M, Kent, M, Buck, D J, Evans
openaire   +2 more sources

In Rhizobium japonicum the nitrogenase genes nifH and nifDK are separated [PDF]

open access: yesJournal of Bacteriology, 1983
In contrast to Klebsiella pneumoniae or fast-growing Rhizobium species, such as R. meliloti, where the nitrogenase structural genes are clustered in one operon (nifHDK), in slow-growing Rhizobium japonicum 110, nifH and nifDK are on separate operons.
K, Kaluza   +4 more
openaire   +2 more sources

Nodularia sp. nifH gene transcripts in the Baltic Sea proper [PDF]

open access: yesJournal of Plankton Research, 2007
While bacterioplankton indisputably control vital biogeochemical paths in the cycling of carbon and nutrients in the world’s oceans, our knowledge about the functional and genetic diversity of bacterioplankton communities is negligible. In this thesis, molecular and more traditional microbiological methods were used to study the specific function of N2-
Kjärstin H. Boström   +3 more
openaire   +1 more source

Evaluation of Primers Targeting the Diazotroph Functional Gene and Development of NifMAP – A Bioinformatics Pipeline for Analyzing nifH Amplicon Data

open access: yesFrontiers in Microbiology, 2018
Diazotrophic microorganisms introduce biologically available nitrogen (N) to the global N cycle through the activity of the nitrogenase enzyme. The genetically conserved dinitrogenase reductase (nifH) gene is phylogenetically distributed across four ...
Roey Angel   +6 more
doaj   +1 more source

Nucleotide sequence of the R.meliloti nitrogenase reductase (nifH) gene

open access: yesNucleic Acids Research, 1981
The nucleotide sequence of the structural gene (nifH) of nitrogenase reductase (Fe protein) from R.meliloti 41 with its flanking ends is reported. The amino acid sequence of nitrogenase reductase was deduced from the DNA sequence. The predicted R.meliloti nitrogenase reductase protein consists of 297 amino acid residues, has a molecular weight of 32 ...
I, Török, A, Kondorosi
openaire   +3 more sources

Nitrogen Fixation Aligns with nifH Abundance and Expression in Two Coral Trophic Functional Groups

open access: yesFrontiers in Microbiology, 2017
Microbial nitrogen fixation (diazotrophy) is a functional trait widely associated with tropical reef-building (scleractinian) corals. While the integral role of nitrogen fixation in coral nutrient dynamics is recognized, its ecological significance ...
Claudia Pogoreutz   +9 more
doaj   +1 more source

Relative Diazotroph Abundance in Symbiotic Red Sea Corals Decreases With Water Depth

open access: yesFrontiers in Marine Science, 2019
Microbial dinitrogen (N2) fixation (diazotrophy) is a trait critical for coral holobiont functioning. The contribution of N2 fixation to holobiont nitrogen (N) supply likely depends on the ecological niche of the coral holobiont.
Arjen Tilstra   +7 more
doaj   +1 more source

Environmental forcing of nitrogen fixation in the eastern tropical and sub-tropical North Atlantic Ocean. [PDF]

open access: yesPLoS ONE, 2011
During the winter of 2006 we measured nifH gene abundances, dinitrogen (N(2)) fixation rates and carbon fixation rates in the eastern tropical and sub-tropical North Atlantic Ocean.
Micha J A Rijkenberg   +8 more
doaj   +1 more source

Metagenomic of Actinomycetes Based on 16S rRNA and nifH Genes in Soil and Roots of Four Indonesian Rice Cultivars Using PCR-DGGE

open access: yesHayati Journal of Biosciences, 2015
The research was conducted to study the metagenomic of actinomycetes based on 16S ribosomal RNA (rRNA) and bacterial nifH genes in soil and roots of four rice cultivars.
Mahyarudin, Iman Rusmana, Yulin Lestari
doaj   +1 more source

Elevated Atmospheric CO2 and Nitrogen Fertilization Affect the Abundance and Community Structure of Rice Root-Associated Nitrogen-Fixing Bacteria

open access: yesFrontiers in Microbiology, 2021
Elevated atmospheric CO2 (eCO2) results in plant growth and N limitation, yet how root-associated nitrogen-fixing bacterial communities respond to increasing atmospheric CO2 and nitrogen fertilization (eN) during the growth stages of rice is unclear ...
Jumei Liu   +16 more
doaj   +1 more source

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