Results 101 to 110 of about 47,392 (275)
Nitrogenases are the only enzymes able to fix gaseous nitrogen into bioavailable ammonia and hence are essential for sustaining life. Catalysis by nitrogenases requires both a large amount of ATP and electrons donated by strongly reducing ferredoxins or ...
Holly Addison +3 more
doaj +1 more source
\u3cem\u3eRhizobium phaseoli\u3c/em\u3e Symbiotic Mutants with Transposon Tn5 Insertions [PDF]
Rhizobium phaseoli CFN42 DNA was mutated by random insertion of Tn5 from suicide plasmid pJB4JI to obtain independently arising strains that were defective in symbiosis with Phaseolus vulgaris but grew normally outside the plant.
Cevallos, Miguel A. +4 more
core +1 more source
Nitrogen regulation of protein–protein interactions and transcript levels of GlnK PII regulator and AmtB ammonium transporter homologs in Archaea [PDF]
Gene homologs of GlnK PII regulators and AmtB-type ammonium transporters are often paired on prokaryotic genomes, suggesting these proteins share an ancient functional relationship.
Adler +53 more
core +2 more sources
State of the art in eukaryotic nitrogenase engineering
Improving the ability of plants and plant-associated organisms to fix and assimilate atmospheric nitrogen has inspired plant biotechnologists for decades, not only to alleviate negative effects on nature from increased use and availability of reactive ...
Stefan Burén, L. M. Rubio
semanticscholar +1 more source
This review covers recent progress in the understanding of stress‐responsive regulatory networks in soybean and highlights emerging genomic and breeding strategies. Integrating molecular insights and precision breeding will help to accelerate the development of climate‐resilient soybean cultivars.
Ali Shahzad +8 more
wiley +1 more source
Input of nitrogen from N2 fixation to northern grasslands [PDF]
Forage legumes form N2-fixing symbioses with rhizobia and may thus make substantial contributions to the N pool in grasslands. However, to optimize their use as sources of N, it is important to elucidate the effects of management factors that influence ...
Carlsson, Georg
core
Evolution![Figure][1] CREDIT: DR. RACHEL A. FOSTER On early Earth, abiotic processes formed the initial supply of fixed (bioavailable) nitrogen necessary to maintain basic metabolic functions. As life began to flourish, this supply probably couldn't meet demand, and evolutionary pressures selected for a means of biological nitrogen fixation. How did
openaire +1 more source
Genomic and secondary metabolites of the marine cyanobacterium Capilliphycus salinus ALCB114379
Abstract Assembling high‐quality genomes from underexplored environments can be helpful for understanding microbial diversity and identifying novel species. The Cyanobacterium type strain Capilliphycus salinus ALCB114379 is a representative of Oscillatoriales order isolated from a supralittoral zone of the south Atlantic Ocean in Brazil, an ecotone ...
Gabriel Schimmelpfeng Passos +8 more
wiley +1 more source
Deep-Sea Archaea Fix and Share Nitrogen in Methane-Consuming Microbial Consortia [PDF]
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
Nitrogenase Inhibition Limited Oxygenation of Earth's Proterozoic Atmosphere.
Cyanobacteria produced the oxygen that began to accumulate on Earth 2.5 billion years ago, at the dawn of the Proterozoic Eon. By 2.4 billion years ago, the Great Oxidation Event (GOE) marked the onset of an atmosphere containing oxygen.
J. F. Allen, B. Thake, W. Martin
semanticscholar +1 more source

