Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1016/j.soilbio.2025.109999 |
Lizenz  |
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| Titel (primär) | Rapid allocation of freshly added organic nitrogen to particulate organic matter in ectomycorrhiza- but not arbuscular mycorrhiza-dominated forests |
| Autor | Zuev, A.G.; Hauer, A.; Angst, G.; Chatzinotas, A.; Eisenhauer, N.; Ferlian, O.; Jurburg, S.D.; Lillipuu, E.M.; Öpik, M.; Vasar, M.; Zhang, A.; Zueva, A.I.; Potapov, A. |
| Quelle | Soil Biology & Biochemistry |
| Erscheinungsjahr | 2026 |
| Department | AME |
| Band/Volume | 212 |
| Seite von | art. 109999 |
| Sprache | englisch |
| Topic | T7 Bioeconomy |
| Supplements | https://ars.els-cdn.com/content/image/1-s2.0-S0038071725002937-mmc1.docx |
| Keywords | Mycorrhiza; Soil organic matter; Particulate organic matter; Mineral-associated organic matter; Stable isotope labelling; Temperate forests |
| Abstract | Mycorrhizal fungi mediate the partitioning and transformation of organic matter in forest soils worldwide. Ectomycorrhizal (ECM) and arbuscular mycorrhizal (AM) fungi differently influence the formation of soil organic matter (SOM) pools, such as decomposable particulate (POM) and persistent mineral-associated organic matter (MaOM). While plant-derived effects were studied extensively, the role of other organic resources in SOM formation across different mycorrhizal systems remains understudied. To address this, we investigated the incorporation of carbon and nitrogen derived from more bioavailable (bacterial and fungal biomass) and less bioavailable (litter, artificial MaOM; a-MaOM) source organic matter into soil POM and MaOM pools in ECM- and AM-dominated soils, using a dual stable isotope (13C and 15N) labelling approach in a temperate experimental forest (MyDiv experiment). We detected 15N, but not 13C label in mycelium and POM across treatments (except a-MaOM) and mycorrhizal types, while no label was detected in soil MaOM. ECM mycelium showed higher 15N uptake from litter, while AM mycelium accumulated more 15N after the addition of fungal biomass. POM in ECM systems had a higher 15N label compared to AM systems in all bacteria, fungi and litter treatments, indicating the role of ECM fungi as important drivers of fresh organic nitrogen allocation in temperate forest soils. The absence of any label in MaOM indicates its slow turnover in Chernozem soil across forests dominated by a single mycorrhizal type. Overall, our study highlights the fast incorporation of freshly added organic nitrogen into the mycelium of mycorrhizal fungi and POM, emphasizing its fast turnover in forest soils. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31442 |
| Zuev, A.G., Hauer, A., Angst, G., Chatzinotas, A., Eisenhauer, N., Ferlian, O., Jurburg, S.D., Lillipuu, E.M., Öpik, M., Vasar, M., Zhang, A., Zueva, A.I., Potapov, A. (2026): Rapid allocation of freshly added organic nitrogen to particulate organic matter in ectomycorrhiza- but not arbuscular mycorrhiza-dominated forests Soil Biol. Biochem. 212 , art. 109999 10.1016/j.soilbio.2025.109999 |
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