Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1007/s11104-025-08001-5 |
Licence  |
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| Title (Primary) | Fate of recently assimilated carbon in the soil–plant system of Vaccinium vitis-idaea and its response to warming in a 2.5-year translocation experiment |
| Author | Kurbel, V.B.; Sietiö, O.-M.; Karhu, K.; Rodionov, A.; Timonen, S.; Ohnemus, T.
; Lehndorff, E.; Pausch, J.; Meyer, N. |
| Source Titel | Plant and Soil |
| Year | 2025 |
| Department | MET |
| Language | englisch |
| Topic | T5 Future Landscapes |
| Keywords | Genetic translocation; Plant Science; Plant Genetics; Plant Development; Plant Physiology; Transgenic Plants |
| Abstract | Background and aims Shrubs like Vaccinium vitis-idaea substantially contribute to forest carbon (C) sequestration. Therefore, understanding their allocation patterns under climate change is crucial. We conducted a translocation experiment with 13CO2 pulse-labelling to test if (I) belowground pools accumulate total and recently assimilated C, (II) within fine roots, assimilated C is preferentially allocated to root tips and mycorrhized cells and (III), whether warming alters C allocation patterns. Methods We translocated soil cores with V. vitis-idaea from North- to South-Finland (+ 3.7 °C mean temperature). After 2.5 years, we excavated and pulse-labelled them with 13CO2, tracing the 13C in plant, soil, and respiration. We used laser-ablation isotope ratio mass spectrometry to examine 13C distribution in fine roots. Results Roots represented the largest plant C pool (north: 49.69 ± 9.73%, translocated: 43.92 ± 6.59% of plant C stock). A substantial amount of recently assimilated 13C was recovered belowground (roots + soil, north: 15.59 ± 5.77%, translocated: 39.21 ± 29.32%) 8 days after labelling. Most assimilated C was respired (north: 63.3 ± 5.9%, translocated: 44.1 ± 3.2%) or recovered in leaves (north: 17.9 ± 5.92%, translocated: 19.2 ± 3.19%). Within fine roots, 13C content tended to be higher at root tips, while mycorrhizal infection had no effect. Warming tended to increase C allocation to the shoot and significantly decreased 13C in the microbial biomass in the mineral soil. Conclusion V. vitis-idaea allocates a large portion of assimilates belowground, but 2.5 years of warming only marginally change C allocation patterns. Accelerated soil microbial processes after translocation may increase plant N availability, potentially affecting C allocation over longer time spans. |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=31718 |
| Kurbel, V.B., Sietiö, O.-M., Karhu, K., Rodionov, A., Timonen, S., Ohnemus, T., Lehndorff, E., Pausch, J., Meyer, N. (2025): Fate of recently assimilated carbon in the soil–plant system of Vaccinium vitis-idaea and its response to warming in a 2.5-year translocation experiment Plant Soil 10.1007/s11104-025-08001-5 |
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