Results 41 to 50 of about 92,594 (154)

Lowering the Mo limit for nitrogen fixation by Mo-nitrogenase

Communications Earth & Environment
Archean ocean marine primary productivity may have been limited by biologically available nitrogen. Due to low molybdenum abundances, early biological nitrogen fixation is thought to have relied on alternative nitrogenases that incorporate vanadium or ...
Zackry Stevenson, Dylan L. Schultz, Michelle Chamberlain, Kathryn Rico, Ariel Anbar, Anne E. Dekas, Elizabeth D. Swanner   +6 more
doaj   +1 more source

Promoting black oat and ryegrass growth via Azospirillum brasilense inoculation after corn and soybean crop rotation [PDF]

Emirates Journal of Food and Agriculture
Inadequate management of nitrogen fertilization, due to high costs, compromises the nutrition and productivity of winter forage plants, highlighting the need to adopt sustainable alternatives, such as using nitrogen-fixing bacteria.
Vinícius dos Santos Cunha, Marcos da Silva Brum, André Brugnara Soares, Evandro Ademir Deak, Léo Antônio Limberger Speth, Thomas Newton Martin   +5 more
doaj   +3 more sources

Improving the quantification of global free-living and symbiotic nitrogen fixation in natural terrestrial ecosystems: present-day estimates and 21st century projections

Environmental Research Letters
Biological nitrogen fixation (BNF) is a critical natural nitrogen input that sustains terrestrial carbon cycling, yet it remains poorly represented in terrestrial ecosystem models (TEMs).
Ye Yuan, Qianlai Zhuang, Bailu Zhao, Licheng Liu   +3 more
doaj   +1 more source

Bedrock Nitrogen Weathering Stimulates Biological Nitrogen Fixation [PDF]

The Bulletin of the Ecological Society of America, 2019
AbstractGlobal ecosystem models suggest that bedrock nitrogen (N) weathering contributes 10–20% of total N inputs to the natural terrestrial biosphere and >38% of ecosystem N supplies in temperate forests specifically. Yet, the role of rock N weathering in shaping ecological processes and biogeochemical fluxes is largely unknown.
Katherine A. Dynarski, Scott L. Morford, Scott A. Mitchell, Benjamin Z. Houlton   +3 more
openaire   +2 more sources

Nitrogen fixation and molecular oxygen: comparative genomic reconstruction of transcription regulation in Alphaproteobacteria

Frontiers in Microbiology, 2016
Biological nitrogen fixation plays a crucial role in the nitrogen cycle. An ability to fix atmospheric nitrogen, reducing it to ammonium, was described for multiple species of Bacteria and Archaea. Being a complex and sensitive process, nitrogen fixation
Olga V Tsoy, Dmitry A Ravcheev, Jelena Čuklina, Jelena Čuklina, Mikhail S Gelfand, Mikhail S Gelfand, Mikhail S Gelfand, Mikhail S Gelfand   +7 more
doaj   +1 more source

Role of Hydroxylamine in Biological Fixation of Nitrogen [PDF]

Nature, 1949
THE position of hydroxylamine as an intermediate in the nitrogen fixation process has become increasingly doubtful as a result of recent studies1,2. No direct attempts have been made, however, to find the effect of hydroxylamine on nitrogen fixation. An application of the isotope tracer method to this problem is being made in these laboratories, using ...
B A, PETHICA, E R, ROBERTS, E R S, WINTER   +2 more
openaire   +2 more sources

Agronomy, Nutritional Value, and Medicinal Application of Faba Bean (Vicia faba L.)

Horticultural Plant Journal, 2019
Faba bean (Vicia faba L.) is a cool season grain legume crop with the potential to be grown as multi-purpose crop in areas with short growing season. Faba bean is grown in many regions in the world due to its high nutritional value, medicinal effect, and
Fatemeh Etemadi, Masoud Hashemi, Allen V. Barker, Omid Reza Zandvakili, Xiaobing Liu   +4 more
doaj   +1 more source

Optimizing Common Bean Symbiosis via Stage-Specific Reinoculation and Co-Inoculation

Plants
The common bean relies on biological nitrogen fixation to meet part of its nitrogen requirements. This study aimed to evaluate the effect of reinoculation with Rhizobium tropici, alone or combined with Azospirillum brasilense, at different phenological ...
Tamires Ester Peixoto Bravo, Itamar Rosa Teixeira, Gisele Carneiro da Silva Teixeira, Nathan Mickael de Bessa Cunha, Ednaldo Cândido Rocha, Lucas Boaretto Comachio, Gessiele Pinheiro da Conceição Alves   +6 more
doaj   +1 more source

Competitiveness and Nitrogen Fixation Efficiency Analysis of Rhizobium leguminosarum Strains in Different Field Pea (Pisum sativum L.) Genotypes

Agriculture
The uneven effectiveness of rhizobia inoculants has increased interest in developing specific inoculants for each genotype. This study investigated the biological nitrogen fixation efficiency and competition between different Rhizobium leguminosarum ...
Justina Kaziūnienė, Audrius Gegeckas, Laura Lapinskienė, Kristyna Razbadauskienė, Raimonda Mažylytė, Skaidrė Supronienė   +5 more
doaj   +1 more source

In silico structural homology modeling of nif A protein of rhizobial strains in selective legume plants

Journal of Genetic Engineering and Biotechnology, 2018
Symbiosis is a complex genetic regulatory biological evolution which is highly specific pertaining to plant species and microbial strains. Biological nitrogen fixation in legumes is a functional combination of nodulation by nod genes and regulation by ...
Sadam D.V. Satyanarayana, M.S.R. Krishna, Pindi Pavan Kumar, Sirisha Jeereddy   +3 more
doaj   +1 more source