Articles | Volume 11, issue 2
https://doi.org/10.5194/soil-11-735-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-11-735-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Original research article
| 
01 Oct 2025
Original research article |
| 01 Oct 2025
| 01 Oct 2025
Aeration and mineral composition of soil mediate microbial CUE
Jolanta Niedźwiecka
Institute of Soil Biology and Biogeochemistry, Biology Centre CAS, České Budějovice, Czechia
Faculty of Science, University of South Bohemia in České Budějovice, Czechia
Institute of Soil Biology and Biogeochemistry, Biology Centre CAS, České Budějovice, Czechia
Faculty of Science, University of South Bohemia in České Budějovice, Czechia
Petr Čapek
Faculty of Science, University of South Bohemia in České Budějovice, Czechia
Ana Catalina Lara
Institute of Soil Biology and Biogeochemistry, Biology Centre CAS, České Budějovice, Czechia
present address: Department of Biochemistry and Microbiology, University of Chemistry and Technology, Prague, Czechia
Stanislav Jabinski
Institute of Soil Biology and Biogeochemistry, Biology Centre CAS, České Budějovice, Czechia
Faculty of Science, University of South Bohemia in České Budějovice, Czechia
Travis B. Meador
Institute of Soil Biology and Biogeochemistry, Biology Centre CAS, České Budějovice, Czechia
Faculty of Science, University of South Bohemia in České Budějovice, Czechia
Hana Šantrůčková
CORRESPONDING AUTHOR
Faculty of Science, University of South Bohemia in České Budějovice, Czechia
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Biogeosciences, 22, 3127–3141, https://doi.org/10.5194/bg-22-3127-2025, https://doi.org/10.5194/bg-22-3127-2025, 2025
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Microbial production is a key parameter in estimation of organic matter cycling in environmental systems, and fungi play a major role as decomposers. In order to improve investigation of fungal production and turnover times in environmental studies, we determined the isotopic signals encoded into lipid biomarkers of fungal pure cultures growing on various carbon substrates in media with isotopically labeled water and bicarbonate.
Talia Gabay, Eva Petrova, Osnat Gillor, Yaron Ziv, and Roey Angel
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This paper evaluates bacterial growth in biocrusts after a large-scale mining disturbance in a hyperarid desert, using a stable isotope probing assay.
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Daniel A. Petrash, Ingrid M. Steenbergen, Astolfo Valero, Travis B. Meador, Tomáš Pačes, and Christophe Thomazo
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We spectroscopically evaluated the gradients of dissolved C, N, S, Fe and Mn in a newly formed redox-stratified lake. The lake features an intermediate redox state between nitrogenous and euxinic conditions that encompasses vigorous open sulfur cycling fuelled by the reducible Fe and Mn stocks of the anoxic sediments. This results in substantial bottom water loads of dissolved iron and sulfate. Observations made in this ecosystem have relevance for deep-time paleoceanographic reconstructions.
Anne Daebeler, Eva Petrová, Elena Kinz, Susanne Grausenburger, Helene Berthold, Taru Sandén, Roey Angel, and the high-school students of biology project groups I, II, and
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SOIL, 8, 163–176, https://doi.org/10.5194/soil-8-163-2022, https://doi.org/10.5194/soil-8-163-2022, 2022
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In this citizen science project, we combined a standardised litter bag method (Tea Bag Index) with microbiome analysis of bacteria and fungi colonising the teabags to gain a holistic understanding of the carbon degradation dynamics in temperate European soils. Our method focuses only on the active part of the soil microbiome. The results show that about one-third of the prokaryotes and one-fifth of the fungal species (ASVs) in the soil were enriched in response to the presence of fresh OM.
Nimrod Wieler, Tali Erickson Gini, Osnat Gillor, and Roey Angel
Biogeosciences, 18, 3331–3342, https://doi.org/10.5194/bg-18-3331-2021, https://doi.org/10.5194/bg-18-3331-2021, 2021
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Biological rock crusts (BRCs) are common microbial-based assemblages covering rocks in drylands. BRCs play a crucial role in arid environments because of the limited activity of plants and soil. Nevertheless, BRC development rates have never been dated. Here we integrated archaeological, microbiological and geological methods to provide a first estimation of the growth rate of BRCs under natural conditions. This can serve as an affordable dating tool in archaeological sites in arid regions.
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Short summary
Studies on how microbes use C in soils typically assume oxic conditions but often overlook anaerobic processes and extracellular metabolite release. We examined how O2 and Fe content affect C mineralisation in forest soils by tracking 13C flow into biomass, CO2, metabolites, and active microbes under oxic and anoxic conditions. Results showed that anoxic conditions preserved C longer, especially in high-Fe soils. We conclude that microbial exudates play a role in anoxic C stabilisation.
Studies on how microbes use C in soils typically assume oxic conditions but often overlook...
