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Preiß, Katja ; Gebauer, Gerhard:
A methodological approach to improve estimates of nutrient gains by partially myco-heterotrophic plants.
In: Isotopes in Environmental and Health Studies.
Bd. 44
(2008)
Heft 4
.
- S. 393-401.
ISSN 1477-2639
DOI: https://doi.org/10.1080/10256010802507458
Abstract
The stable isotopes 15N and 13C can be used to investigate the nutritional mode of terrestrial orchids andpyroloids (Monotropoideae, Ericaceae). Some of these plants are putatively autotrophic but meet theirnitrogen and carbon demands by gaining organic compounds (e.g. amino acids) from mycorrhizal fungi.This so-called partially myco-heterotrophic nutrition is reflected by their isotope signature. The applicationof a two-source linear mixing model on δ values of such plants allows calculating the percentage of N and Cderived from their associated mycorrhizal fungi. Here we present an approach to improve estimates of theplants’ degree of myco-heterotrophy. Due to the presented conversion of δ values into enrichment factors(ε), results obtain a better resolution and data from various studies become normalised which facilitatescombined representations and meta-analyses.
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| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER63787 |
| Institutionen der Universität: | Forschungseinrichtungen > Forschungszentren > Bayreuther Zentrum für Ökologie und Umweltforschung - BayCEER Forschungseinrichtungen Forschungseinrichtungen > Forschungszentren |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 07 Aug 2015 06:59 |
| Letzte Änderung: | 07 Aug 2015 06:59 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/17761 |