eprintid: 26374 rev_number: 19 eprint_status: archive userid: 5867 dir: disk0/00/02/63/74 datestamp: 2014-06-17 20:19:50 lastmod: 2021-01-12 10:54:57 status_changed: 2014-06-17 20:19:50 type: journalp metadata_visibility: show doclang: en projects: ch-fibl-soil projects: de-tu-muenchen-weihenstephan projects: zother4 refereed: yes budget: 0 docurl: http://dx.doi.org/10.1007/s11104-009-9998-9 publicfulltext: FALSE creators_name: Esperschütz, J. creators_name: Gattinger, A. creators_name: Buegger, F. creators_name: Lang, H. creators_name: Munch, J. creators_name: Schloter, M. creators_name: Winkler, J. title: A continuous labelling approach to recover photosynthetically fixed carbon in plant tissue and rhizosphere organisms of young beech trees (Fagus sylvatica L.) using 13C depleted CO2 ispublished: pub subjects: 5soil keywords: PLFA, Rhizosphere, 13C depleted CO2, Continuous labelling, Ectomycorrhizal fungi, Beech, Open-top chamber, Bodenwissenschaften abstract: A continuous labelling experiment using 13C-CO2 was set up in open-top chambers in order to follow fluxes of assimilates from the plant into the rhizosphere. Labelling was performed for one growing season by adding low amounts of CO2 depleted in 13C to the atmosphere of the open-top chambers, resulting in a difference of ∆ 13C 5‰ V-PDB compared to ambient conditions. The label was recovered in both plant parts and soil microbial communities, analysed via phospholipid fatty acid (PLFA) side chains. PLFA 18:2ω6,9 showed a significant incorporation of the 13C label in October, indicating that fungi utilized plant derived carbon. In bacterial PLFA no label incorporation was detected, probably due to a lower use of rhizodeposits or a preference to older carbon compounds as energy sources. This experimental setup represents a low-cost continuous labelling method for field experiments with only minor increase of CO2 concentrations. date: 2009-10 date_type: published publication: Plant and Soil volume: 323 number: 1-2 full_text_status: restricted pagerange: 21-29 id_number: 10.1007/s11104-009-9998-9 issn: 0032-079X contact_email: juergen.esperschuetz@helmholtz-muenchen.de conf_subm: not_subm voa3r_agrovoc_lang: en voa3r_agrovoc_lang: en voa3r_agrovoc_lang: en voa3r_agrovoc_lang: en voa3r_agrovoc_lang: en voa3r_agrovoc_lang: en voa3r_agrovoc_lang: en voa3r_agrovoc_value_string: PLFA voa3r_agrovoc_value_string: Rhizosphere voa3r_agrovoc_value_string: 13C depleted CO2 voa3r_agrovoc_value_string: Continuous labelling voa3r_agrovoc_value_string: Ectomycorrhizal fungi voa3r_agrovoc_value_string: Beech voa3r_agrovoc_value_string: Open-top chamber voa3r_agrovoc_value_uri: http://aims.fao.org/aos/agrovoc/c_6569 fp7_project: no access_rights: info:eu-repo/semantics/openAccess citation: Esperschütz, J.; Gattinger, A.; Buegger, F.; Lang, H.; Munch, J.; Schloter, M. and Winkler, J. (2009) A continuous labelling approach to recover photosynthetically fixed carbon in plant tissue and rhizosphere organisms of young beech trees (Fagus sylvatica L.) using 13C depleted CO2. Plant and Soil, 323 (1-2), pp. 21-29. document_url: /id/eprint/26374/1/Esperschuetz_etal_2009_PS323.pdf