Stored carbon partly fuels fine-root respiration but is not used for production of new fine roots
Version of Record online: 7 MAY 2013
No claim to original US government works. New Phytologist © 2013 New Phytologist Trust
Volume 199, Issue 2, pages 420–430, July 2013
How to Cite
Lynch, D. J., Matamala, R., Iversen, C. M., Norby, R. J. and Gonzalez-Meler, M. A. (2013), Stored carbon partly fuels fine-root respiration but is not used for production of new fine roots. New Phytologist, 199: 420–430. doi: 10.1111/nph.12290
- Issue online: 19 JUN 2013
- Version of Record online: 7 MAY 2013
- Manuscript Accepted: 17 MAR 2013
- Manuscript Received: 30 JAN 2013
- United States Department of Energy, Office of Science, Biological and Environmental Research program. Grant Number: ER65188
- National Science Foundation. Grant Number: DEB-0919276
- National Science Foundation IGERT. Grant Number: DGE-0549245
- US Department of Energy, Office of Science, Office of Biological and Environmental Research, Terrestrial Ecosystem Science Division. Grant Number: DE-AC02-06CH11357
Please note: Wiley-Blackwell are not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing material) should be directed to the New Phytologist Central Office.
Fig. S1 Bulk root δ13C from fine roots 1–2 mm diameter from in-growth cores.
Fig. S2 A linearity approach to separating C pools with different turnover rates: log (% treatment C remaining) as a function of time after CO2 fumigation cessation.
Fig. S3 A comparison of one-pool and two-pool exponential decay functions for fine roots < 1 mm diameter.
Fig. S4 A comparison of one-pool and two-pool exponential decay functions for fine roots 1–2 mm diameter.
Table S1 ANOVA results for bulk δ13C of fine roots < 1 mm diameter from in-growth cores with sampling period as replicate
Table S2 ANOVA results for comparing bulk root δ13C and fine-root respired CO2 in ambient [CO2] with sampling time and C source as replicates
Table S3 ANOVA results for comparing δ13C of fine-root respired CO2 in the elevated [CO2] rings with sampling time as replicate