Field, KJ orcid.org/0000-0002-5196-2360, Bidartondo, MI, Rimington, WR et al. (6 more authors) (2019) Functional complementarity of ancient plant–fungal mutualisms: contrasting nitrogen, phosphorus and carbon exchanges between Mucoromycotina and Glomeromycotina fungal symbionts of liverworts. New Phytologist, 223 (2). pp. 908-921. ISSN 0028-646X
Abstract
Liverworts, which are amongst the earliest divergent plant lineages and important ecosystem pioneers, often form nutritional mutualisms with arbuscular mycorrhiza‐forming Glomeromycotina and fine‐root endophytic Mucoromycotina fungi, both of which coevolved with early land plants. Some liverworts, in common with many later divergent plants, harbour both fungal groups, suggesting these fungi may complementarily improve plant access to different soil nutrients.
We tested this hypothesis by growing liverworts in single and dual fungal partnerships under a modern atmosphere and under 1500 ppm [CO2], as experienced by early land plants. Access to soil nutrients via fungal partners was investigated with 15N‐labelled algal necromass and 33P orthophosphate. Photosynthate allocation to fungi was traced using 14CO2.
Only Mucoromycotina fungal partners provided liverworts with substantial access to algal 15N, irrespective of atmospheric CO2 concentration. Both symbionts increased 33P uptake, but Glomeromycotina were often more effective. Dual partnerships showed complementarity of nutrient pool use and greatest photosynthate allocation to symbiotic fungi.
We show there are important functional differences between the plant–fungal symbioses tested, providing new insights into the functional biology of Glomeromycotina and Mucoromycotina fungal groups that form symbioses with plants. This may explain the persistence of the two fungal lineages in symbioses across the evolution of land plants.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Authors. New Phytologist Trust This is the post-peer reviewed version of the following article: Field, K. J., Bidartondo, M. I., Rimington, W. R., Hoysted, G. A., Beerling, D. , Cameron, D. D., Duckett, J. G., Leake, J. R. and Pressel, S. (2019), Functional complementarity of ancient plant–fungal mutualisms: contrasting nitrogen, phosphorus and carbon exchanges between Mucoromycotina and Glomeromycotina fungal symbionts of liverworts. New Phytol, 223: 908-921, which has been published in final form at: https://doi.org/10.1111/nph.15819. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. |
Keywords: | arbuscular mycorrhiza; carbonfor-nutrient exchange; CO2; fine root endophyte; liverworts; nitrogen; orthophosphate; symbiosis |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biology (Leeds) |
Funding Information: | Funder Grant number BBSRC BB/M026825/1 NERC NE/N00941X/1 Leverhulme Trust Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 02 Apr 2019 13:31 |
Last Modified: | 28 Mar 2020 01:38 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1111/nph.15819 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:144303 |