Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1007/s11104-025-07758-z |
Lizenz  |
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| Titel (primär) | Soil water limitation intensity alters nitrogen cycling at the plant-soil interface in Scots pine mesocosms |
| Autor | Solly, E.F.; Jaeger, A.C.H.; Barthel, M.; Six, J.; Mueller, R.C.; Hartmann, M. |
| Quelle | Plant and Soil |
| Erscheinungsjahr | 2025 |
| Department | CHS |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Supplements | https://static-content.springer.com/esm/art%3A10.1007%2Fs11104-025-07758-z/MediaObjects/11104_2025_7758_MOESM1_ESM.xlsx https://static-content.springer.com/esm/art%3A10.1007%2Fs11104-025-07758-z/MediaObjects/11104_2025_7758_MOESM2_ESM.xlsx https://static-content.springer.com/esm/art%3A10.1007%2Fs11104-025-07758-z/MediaObjects/11104_2025_7758_MOESM3_ESM.docx |
| Keywords | Water limitation; Nitrogen cycling; Litter decomposition; 15N labeling; Metagenomics; Soil microbiome; Pinus sylvestris; Nitrogen allocation |
| Abstract | Background and aim More intense episodes of drought are expected to affect terrestrial nitrogen (N) cycling by altering N transformation rates, the functioning of soil microorganisms, and plant N uptake. However, there is limited empirical evidence of how progressive water loss affects N cycling at the plant-soil interface. Methods We adopted 15N tracing techniques and metagenomic analyzes of microbial genes involved in N cycling to assess how different levels of soil water availability influenced the fate of N derived from decomposing litter in mesocosms with Scots pine saplings. Results With increasing water limitation, the release of N from decomposing litter into the soil declined rapidly. However, moderate levels of water limitation barely affected the microbial metagenome associated with N cycling and the uptake of N by the saplings. Comparatively, severe levels of water limitation impaired plant N uptake, and increased the prevalence of microbial N-cycling genes potentially involved in mechanisms that protect against water stress. Genes associated with the uptake and release of N during mineralization and nitrification declined under low soil water contents. Conclusions When soil water becomes largely unavailable, the cycling of N at the plant-soil interface is slowed down, and microbial and plant tolerance mechanisms may prevail over N uptake and microbial decomposition. |
| dauerhafte UFZ-Verlinkung | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31155 |
| Solly, E.F., Jaeger, A.C.H., Barthel, M., Six, J., Mueller, R.C., Hartmann, M. (2025): Soil water limitation intensity alters nitrogen cycling at the plant-soil interface in Scots pine mesocosms Plant Soil 10.1007/s11104-025-07758-z |
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