ArticlePloS one2018
Associative nitrogen fixation (ANF) in switchgrass (Panicum virgatum) across a nitrogen input gradient.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Concomitant responses of free-living nitrogen fixation and diazotrophic community composition to soil moisture in two soils.Frontiers in microbiology · 2026Article
- Mechanistic insights into yield enhancement of Chimonobambusa opienensis bamboo shoots driven by organic fertilizer combined with Azotobacter Chroococcum via soil nutrient-microbe-metabolite interactions.BMC plant biology · 2025Article
- Deciphering Molecular Mechanisms and Diversity of Plant Holobiont Bacteria: Microhabitats, Community Ecology, and Nutrient Acquisition.International journal of molecular sciences · 2024Review
- Genomic prediction of regional-scale performance in switchgrass (Panicum virgatum) by accounting for genotype-by-environment variation and yield surrogate traits.G3 (Bethesda, Md.) · 2024Article
- Nutrient and moisture limitations reveal keystone metabolites linking rhizosphere metabolomes and microbiomes.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Review
- Rhizosphere microbial community structure in high-producing, low-input switchgrass families.PloS one · 2024Article
- Regional biogeography versus intra-annual dynamics of the root and soil microbiome.Environmental microbiome · 2023Article
- Prevalence of Deltaproteobacterial sequences in3 Biotech · 2023Article
- Seasonal activities of the phyllosphere microbiome of perennial crops.Nature communications · 2023Article
- Plant Beneficial Bacteria and Their Potential Applications in Vertical Farming Systems.Plants (Basel, Switzerland) · 2023Review
- Distinct response patterns of plants and soil microorganisms to agronomic practices and seasonal variation in a floodplain ecosystem.Frontiers in microbiology · 2023Article
- Article
- Article
- A starting guide to root ecology: strengthening ecological concepts and standardising root classification, sampling, processing and trait measurements.The New phytologist · 2021Review
- Deciphering the rhizobacterial assemblages under the influence of genetically engineered maize carrying mcry genes.Environmental science and pollution research international · 2021Article
- Molecular Analyses of the Distribution and Function of Diazotrophic Rhizobia and Methanotrophs in the Tissues and Rhizosphere of Non-Leguminous Plants.Plants (Basel, Switzerland) · 2019Review
- To Fix or Not To Fix: Controls on Free-Living Nitrogen Fixation in the Rhizosphere.Applied and environmental microbiology · 2019Review
- Conservation of Endophyte Bacterial Community Structure Across TwoFrontiers in microbiology · 2019Article
- Synergies between mycorrhizal fungi and soil microbial communities increase plant nitrogen acquisition.Communications biology · 2019Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Associative N fixation (ANF), the process by which dinitrogen gas is converted to ammonia by bacteria in casual association with plants, has not been well-studied in temperate ecosystems. We examined the ANF potential of switchgrass (Panicum virgatum L.), a North American prairie grass whose productivity is often unresponsive to N fertilizer addition, via separate short-term 15N2 incubations of rhizosphere soils and excised roots four times during the growing season. Measurements occurred along N fertilization gradients at two sites with contrasting soil fertility (Wisconsin, USA Mollisols and Michigan, USA Alfisols). In general, we found that ANF potentials declined with long-term N addition, corresponding with increased soil N availability. Although we hypothesized that ANF potential would track plant N demand through the growing season, the highest root fixation rates occurred after plants senesced, suggesting that root diazotrophs exploit carbon (C) released during senescence, as C is translocated from aboveground tissues to roots for wintertime storage. Measured ANF potentials, coupled with mass balance calculations, suggest that ANF appears to be an important source of N to unfertilized switchgrass, and, by extension, to temperate grasslands in general.
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