ArticleFrontiers in microbiology2015
Rhizosphere bacterial carbon turnover is higher in nucleic acids than membrane lipids: implications for understanding soil carbon cycling.
Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 59 citations in OpenAlex.
- Untargeted Metabolomics Reveals Distinct Soil Metabolic Profiles Across Land Management Practices.Metabolites · 2025Article
- Deciphering factors driving soil microbial life-history strategies in restored grasslands.iMeta · 2023Article
- Stimulation of Distinct Rhizosphere Bacteria Drives Phosphorus and Nitrogen Mineralization in Oilseed Rape under Field Conditions.mSystems · 2022Article
- Article
- Bridging Microbial Functional Traits With Localized Process Rates at Soil Interfaces.Frontiers in microbiology · 2021Review
- The extent and pathways of nitrogen loss in turfgrass systems: Age impacts.The Science of the total environment · 2018Article
- Land use driven change in soil pH affects microbial carbon cycling processes.Nature communications · 2018Article
- Land use in mountain grasslands alters drought response and recovery of carbon allocation and plant-microbial interactions.The Journal of ecology · 2018Article
- Drought-Induced Accumulation of Root Exudates Supports Post-drought Recovery of Microbes in Mountain Grassland.Frontiers in plant science · 2018Article
- Resource Legacies of Organic and Conventional Management Differentiate Soil Microbial Carbon Use.Frontiers in microbiology · 2017Article
- Soil Fungal:Bacterial Ratios Are Linked to Altered Carbon Cycling.Frontiers in microbiology · 2016Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Using a pulse chase (13)CO2 plant labeling experiment we compared the flow of plant carbon into macromolecular fractions of rhizosphere soil microorganisms. Time dependent (13)C dilution patterns in microbial cellular fractions were used to calculate their turnover time. The turnover times of microbial biomolecules were found to vary: microbial RNA (19 h) and DNA (30 h) turned over fastest followed by chloroform fumigation extraction-derived soluble cell lysis products (14 days), while phospholipid fatty acids (PLFAs) had the slowest turnover (42 days). PLFA/NLFA (13)C analyses suggest that both mutualistic arbuscular mycorrhizal and saprophytic fungi are dominant in initial plant carbon uptake. In contrast, high initial (13)C enrichment in RNA hints at bacterial importance in initial C uptake due to the dominance of bacterial derived RNA in total extracts of soil RNA. To explain this discrepancy, we observed low renewal rate of bacterial lipids, which may therefore bias lipid fatty acid based interpretations of the role of bacteria in soil microbial food webs. Based on our findings, we question current assumptions regarding plant-microbe carbon flux and suggest that the rhizosphere bacterial contribution to plant assimilate uptake could be higher. This highlights the need for more detailed quantitative investigations with nucleic acid biomarkers to further validate these findings.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.