ArticleProceedings of the National Academy of Sciences of the United States of America2019
Molybdenum threshold for ecosystem scale alternative vanadium nitrogenase activity in boreal forests.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.
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Who cites it
24 citing papers in PubMed, 1 synthesis or guideline pooled it, 91 citations in OpenAlex.
- A Meta-Regression of 18 Wildfire Chronosequences Reveals Key Environmental Drivers and Knowledge Gaps in the Boreal Nitrogen Balance.Global change biology · 2025Pooled it
- Response of nitrogen-fixing plant symbioses to changing temperature.Journal of integrative plant biology · 2026Review
- Molybdenum doping enhances backbonding at neighboring iron centers in iron-sulfur clusters.Chem · 2026Article
- Global Role of Vanadium for Cryptogamic Nitrogen Fixation in Extratropical Forests.Environmental science & technology · 2026Article
- The risk of NTM pulmonary infection associated with trace metal exposure from public distribution system water in the United States.Journal of exposure science & environmental epidemiology · 2026Article
- Is moss-associated nitrogen fixation controlled by the same factors across shoots, species and sites?Environmental and experimental botany · 2025Article
- Rapid Radiations Outweigh Reticulations During the Evolution of a 750-Million-Year-Old Lineage of Cyanobacteria.Molecular biology and evolution · 2025Article
- Central metabolism and development are rewired in lichenized cyanobacteria.The ISME journal · 2025Article
- The iron nitrogenase reduces carbon dioxide to formate and methane under physiological conditions: A route to feedstock chemicals.Science advances · 2024Article
- A direct PCR approach with low-biomass insert opens new horizons for molecular sciences on cryptogam communities.Applied and environmental microbiology · 2024Article
- High species richness in the lichen genusPersoonia · 2023Article
- Quantification of biological nitrogen fixation by Mo-independent complementary nitrogenases in environmental samples with low nitrogen fixation activity.Scientific reports · 2022Article
- Vanadium in groundwater aquifers increases the risk of MAC pulmonary infection in O'ahu, Hawai'i.Environmental epidemiology (Philadelphia, Pa.) · 2022Article
- Rnf and Fix Have Specific Roles during Aerobic Nitrogen Fixation in Azotobacter vinelandii.Applied and environmental microbiology · 2022Article
- Interactions between paralogous bacterial enhancer-binding proteins enable metal-dependent regulation of alternative nitrogenases in Azotobacter vinelandii.Molecular microbiology · 2022Article
- Evolutionary genomic insights into cyanobacterial symbioses in plants.Quantitative plant biology · 2022Review
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- Functional analysis of multiple nifB genes of Paenibacillus strains in synthesis of Mo-, Fe- and V-nitrogenases.Microbial cell factories · 2021Article
- Comparative genomic insights into culturable symbiotic cyanobacteria from the water fernMicrobial genomics · 2021Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Biological nitrogen fixation (BNF) by microorganisms associated with cryptogamic covers, such as cyanolichens and bryophytes, is a primary source of fixed nitrogen in pristine, high-latitude ecosystems. On land, low molybdenum (Mo) availability has been shown to limit BNF by the most common form of nitrogenase (Nase), which requires Mo in its active site. Vanadium (V) and iron-only Nases have been suggested as viable alternatives to countering Mo limitation of BNF; however, field data supporting this long-standing hypothesis have been lacking. Here, we elucidate the contribution of vanadium nitrogenase (V-Nase) to BNF by cyanolichens across a 600-km latitudinal transect in eastern boreal forests of North America. Widespread V-Nase activity was detected (∼15-50% of total BNF rates), with most of the activity found in the northern part of the transect. We observed a 3-fold increase of V-Nase contribution during the 20-wk growing season. By including the contribution of V-Nase to BNF, estimates of new N input by cyanolichens increase by up to 30%. We find that variability in V-based BNF is strongly related to Mo availability, and we identify a Mo threshold of ∼250 ng·g
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