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A methodological approach to improve estimates of nutrient gains by partially myco-heterotrophic plants

Title data

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. Vol. 44 (2008) Issue 4 . - pp. 393-401.
ISSN 1477-2639
DOI: https://doi.org/10.1080/10256010802507458

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER63787
Institutions of the University: Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 07 Aug 2015 06:59
Last Modified: 07 Aug 2015 06:59
URI: https://eref.uni-bayreuth.de/id/eprint/17761