Global nitrogen cycle: critical enzymes, organisms, and processes for nitrogen budgets and dynamics

X Zhang, BB Ward, DM Sigman - Chemical reviews, 2020 - ACS Publications
Nitrogen (N) is used in many of life's fundamental biomolecules, and it is also a participant in
environmental redox chemistry. Biogeochemical processes control the amount and form of N …

Biological nitrogen fixation by alternative nitrogenases in terrestrial ecosystems: a review

JP Bellenger, R Darnajoux, X Zhang, AML Kraepiel - Biogeochemistry, 2020 - Springer
Biological nitrogen fixation (BNF), a key reaction of the nitrogen cycle, is catalyzed by the
enzyme nitrogenase. The best studied isoform of this metalloenzyme requires molybdenum …

Mineral-bound trace metals as cofactors for anaerobic biological nitrogen fixation

Y Sheng, O Baars, D Guo, J Whitham… - Environmental …, 2023 - ACS Publications
Nitrogenase is the only known biological enzyme capable of reducing N2 to bioavailable
NH3. Most nitrogenases use Mo as a metallocofactor, while alternative cofactors V and Fe …

Binding of vanadium ions and complexes to proteins and enzymes in aqueous solution

JC Pessoa, MFA Santos, I Correia, D Sanna… - Coordination Chemistry …, 2021 - Elsevier
The understanding of the role of vanadium enzymes and of vanadium compounds (VCs) in
biology, as well as the design of new vanadium-based species for catalysis, materials …

Enigmatic evolution of microbial nitrogen fixation: insights from Earth's past

HR Rucker, B Kaçar - Trends in Microbiology, 2023 - cell.com
The evolution of nitrogen fixation undoubtedly altered nearly all corners of the biosphere,
given the essential role of nitrogen in the synthesis of biomass. To date, there is no unified …

The iron nitrogenase reduces carbon dioxide to formate and methane under physiological conditions: A route to feedstock chemicals

NN Oehlmann, FV Schmidt, M Herzog, AL Goldman… - Science …, 2024 - science.org
Nitrogenases are the only known enzymes that reduce molecular nitrogen (N2) to ammonia.
Recent findings have demonstrated that nitrogenases also reduce the greenhouse gas …

Iron-only and vanadium nitrogenases: fail-safe enzymes or something more?

CS Harwood - Annual Review of Microbiology, 2020 - annualreviews.org
The enzyme molybdenum nitrogenase converts atmospheric nitrogen gas to ammonia and
is of critical importance for the cycling of nitrogen in the biosphere and for the sustainability …

Metabolic model of the nitrogen-fixing obligate aerobe Azotobacter vinelandii predicts its adaptation to oxygen concentration and metal availability

AB Alleman, F Mus, JW Peters - Mbio, 2021 - Am Soc Microbiol
There is considerable interest in promoting biological nitrogen fixation (BNF) as a
mechanism to reduce the inputs of nitrogenous fertilizers in agriculture, but considerable …

Molybdenum bioavailability and asymbiotic nitrogen fixation in soils are raised by iron (oxyhydr) oxide-mediated free radical production

GH Yu, Y Kuzyakov, Y Luo, BA Goodman… - Environmental …, 2021 - ACS Publications
Nitrogen (N) fixation in soils is closely linked to microbially mediated molybdenum (Mo)
cycling. Therefore, elucidating the mechanisms and factors that affect Mo bioavailability is …

Formally described species woefully underrepresent phylogenetic diversity in the common lichen photobiont genus Trebouxia (Trebouxiophyceae, Chlorophyta): An …

L Muggia, MP Nelsen, PM Kirika, E Barreno… - Molecular phylogenetics …, 2020 - Elsevier
Lichens provide valuable systems for studying symbiotic interactions. In lichens, these
interactions are frequently described in terms of availability, selectivity and specificity of the …