Recently photoassimilated carbon and fungus-delivered nitrogen are spatially correlated in the ectomycorrhizal tissue of Fagus sylvatica

Recently photoassimilated carbon and fungus-delivered nitrogen are spatially correlated in the ectomycorrhizal tissue of Fagus sylvatica

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 232(2021), 6 vom: 30. Dez., Seite 2457-2474
1. Verfasser: Mayerhofer, Werner (VerfasserIn)
Weitere Verfasser: Schintlmeister, Arno, Dietrich, Marlies, Gorka, Stefan, Wiesenbauer, Julia, Martin, Victoria, Gabriel, Raphael, Reipert, Siegfried, Weidinger, Marieluise, Clode, Peta, Wagner, Michael, Woebken, Dagmar, Richter, Andreas, Kaiser, Christina
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Fagus sylvatica (beech) NanoSIMS carbon ectomycorrhiza nitrogen (N) recent photosynthates reciprocal rewards resource exchange Carbon mehr... 7440-44-0 Nitrogen N762921K75
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520 |a Ectomycorrhizal plants trade plant-assimilated carbon for soil nutrients with their fungal partners. The underlying mechanisms, however, are not fully understood. Here we investigate the exchange of carbon for nitrogen in the ectomycorrhizal symbiosis of Fagus sylvatica across different spatial scales from the root system to the cellular level. We provided 15 N-labelled nitrogen to mycorrhizal hyphae associated with one half of the root system of young beech trees, while exposing plants to a 13 CO2 atmosphere. We analysed the short-term distribution of 13 C and 15 N in the root system with isotope-ratio mass spectrometry, and at the cellular scale within a mycorrhizal root tip with nanoscale secondary ion mass spectrometry (NanoSIMS). At the root system scale, plants did not allocate more 13 C to root parts that received more 15 N. Nanoscale secondary ion mass spectrometry imaging, however, revealed a highly heterogenous, and spatially significantly correlated distribution of 13 C and 15 N at the cellular scale. Our results indicate that, on a coarse scale, plants do not allocate a larger proportion of photoassimilated C to root parts associated with N-delivering ectomycorrhizal fungi. Within the ectomycorrhizal tissue, however, recently plant-assimilated C and fungus-delivered N were spatially strongly coupled. Here, NanoSIMS visualisation provides an initial insight into the regulation of ectomycorrhizal C and N exchange at the microscale 
650 4 |a Journal Article 
650 4 |a Fagus sylvatica (beech) 
650 4 |a NanoSIMS 
650 4 |a carbon 
650 4 |a ectomycorrhiza 
650 4 |a nitrogen (N) 
650 4 |a recent photosynthates 
650 4 |a reciprocal rewards 
650 4 |a resource exchange 
650 7 |a Carbon  |2 NLM 
650 7 |a 7440-44-0  |2 NLM 
650 7 |a Nitrogen  |2 NLM 
650 7 |a N762921K75  |2 NLM 
700 1 |a Schintlmeister, Arno  |e verfasserin  |4 aut 
700 1 |a Dietrich, Marlies  |e verfasserin  |4 aut 
700 1 |a Gorka, Stefan  |e verfasserin  |4 aut 
700 1 |a Wiesenbauer, Julia  |e verfasserin  |4 aut 
700 1 |a Martin, Victoria  |e verfasserin  |4 aut 
700 1 |a Gabriel, Raphael  |e verfasserin  |4 aut 
700 1 |a Reipert, Siegfried  |e verfasserin  |4 aut 
700 1 |a Weidinger, Marieluise  |e verfasserin  |4 aut 
700 1 |a Clode, Peta  |e verfasserin  |4 aut 
700 1 |a Wagner, Michael  |e verfasserin  |4 aut 
700 1 |a Woebken, Dagmar  |e verfasserin  |4 aut 
700 1 |a Richter, Andreas  |e verfasserin  |4 aut 
700 1 |a Kaiser, Christina  |e verfasserin  |4 aut 
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773 1 8 |g volume:232  |g year:2021  |g number:6  |g day:30  |g month:12  |g pages:2457-2474 
856 4 0 |u http://dx.doi.org/10.1111/nph.17591  |3 Volltext 
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