Millett et al 2012 final accepted version.pdf (288.23 kB)
Reliance on prey-derived nitrogen by the carnivorous plant Drosera rotundifolia decreases with increasing nitrogen deposition
journal contribution
posted on 2013-10-24, 11:18 authored by Jonathan Millett, B.M. Svensson, H. Rydin, Jason NewtonCarnivory in plants is presumed to be an adaptation to a low-nutrient environment. Nitrogen (N) from carnivory is expected to become a less important component of the N budget as root N availability increases. • Here, we investigated the uptake of N via roots versus prey of the carnivorous plant Drosera rotundifolia growing in ombrotrophic bogs along a latitudinal N deposition gradient through Sweden, using a natural abundance stable isotope mass balance technique. • Drosera rotundifolia plants receiving the lowest level of N deposition obtained a greater proportion of N from prey (57%) than did plants on bogs with higher N deposition (22% at intermediate and 33% at the highest deposition). When adjusted for differences in plant mass, this pattern was also present when considering total prey N uptake (66, 26 and 26μg prey N per plant at the low, intermediate and high N deposition sites, respectively). The pattern of mass-adjusted root N uptake was opposite to this (47, 75 and 86μg N per plant). • Drosera rotundifolia plants in this study switched from reliance on prey N to reliance on root-derived N as a result of increasing N availability from atmospheric N deposition.
History
School
- Social Sciences
Department
- Geography and Environment
Citation
MILLETT, J. ... et al, 2012. Reliance on prey-derived nitrogen by the carnivorous plant Drosera rotundifolia decreases with increasing nitrogen deposition. New Phytologist, 195 (1), pp.182-188.Publisher
Wiley (© The Authors / © New Phytologist Trust)Version
- AM (Accepted Manuscript)
Publication date
2012Notes
The definitive version is available at www.newphytologist.com.ISSN
0028-646XeISSN
1469-8137Publisher version
Language
- en