Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies?
Nitrogen (N) transfer among plants has been found where at least one plant can fix N2. In nutrient-poor soils, where plants with contrasting nutrient-acquisition strategies (without N2 fixation) co-occur, it is unclear if N transfer exists and what promotes it. A novel multi-species microcosm pot ex...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Wiley-Blackwell Publishing Ltd.
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/46041 |
| _version_ | 1848757450682925056 |
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| author | Teste, F. Veneklaas, E. Dixon, Kingsley Lambers, H. |
| author_facet | Teste, F. Veneklaas, E. Dixon, Kingsley Lambers, H. |
| author_sort | Teste, F. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Nitrogen (N) transfer among plants has been found where at least one plant can fix N2. In nutrient-poor soils, where plants with contrasting nutrient-acquisition strategies (without N2 fixation) co-occur, it is unclear if N transfer exists and what promotes it. A novel multi-species microcosm pot experiment was conducted to quantify N transfer between arbuscular mycorrhizal (AM), ectomycorrhizal (EM), dual AM/EM, and non-mycorrhizal cluster-rooted plants in nutrient-poor soils with mycorrhizal mesh barriers. We foliarfed plants with a K15NO3 solution to quantify one-way N transfer from ‘donor’ to ‘receiver’ plants. We also quantified mycorrhizal colonization and root intermingling. Transfer of N between plants with contrasting nutrient-acquisition strategies occurred at both low and high soil nutrient levels with or without root intermingling. The magnitude of N transfer was relatively high (representing 4% of donor plant N) given the lack of N2 fixation. Receiver plants forming ectomycorrhizas or cluster roots were more enriched compared with AM-only plants. We demonstrate N transfer between plants of contrasting nutrient-acquisition strategies, and a preferential enrichment of cluster-rooted and EM plants compared with AM plants. Nutrient exchanges among plants are potentially important in promoting plant coexistence in nutrient-poor soils. |
| first_indexed | 2025-11-14T09:28:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-46041 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:28:17Z |
| publishDate | 2015 |
| publisher | Wiley-Blackwell Publishing Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-460412017-10-02T02:28:05Z Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? Teste, F. Veneklaas, E. Dixon, Kingsley Lambers, H. ectomycorrhiza biodiversity - mycorrhizal networks isotope 15N plant coexistence arbuscular mycorrhiza cluster roots ecological restoration Nitrogen (N) transfer among plants has been found where at least one plant can fix N2. In nutrient-poor soils, where plants with contrasting nutrient-acquisition strategies (without N2 fixation) co-occur, it is unclear if N transfer exists and what promotes it. A novel multi-species microcosm pot experiment was conducted to quantify N transfer between arbuscular mycorrhizal (AM), ectomycorrhizal (EM), dual AM/EM, and non-mycorrhizal cluster-rooted plants in nutrient-poor soils with mycorrhizal mesh barriers. We foliarfed plants with a K15NO3 solution to quantify one-way N transfer from ‘donor’ to ‘receiver’ plants. We also quantified mycorrhizal colonization and root intermingling. Transfer of N between plants with contrasting nutrient-acquisition strategies occurred at both low and high soil nutrient levels with or without root intermingling. The magnitude of N transfer was relatively high (representing 4% of donor plant N) given the lack of N2 fixation. Receiver plants forming ectomycorrhizas or cluster roots were more enriched compared with AM-only plants. We demonstrate N transfer between plants of contrasting nutrient-acquisition strategies, and a preferential enrichment of cluster-rooted and EM plants compared with AM plants. Nutrient exchanges among plants are potentially important in promoting plant coexistence in nutrient-poor soils. 2015 Journal Article http://hdl.handle.net/20.500.11937/46041 10.1111/pce.12367 Wiley-Blackwell Publishing Ltd. restricted |
| spellingShingle | ectomycorrhiza biodiversity - mycorrhizal networks isotope 15N plant coexistence arbuscular mycorrhiza cluster roots ecological restoration Teste, F. Veneklaas, E. Dixon, Kingsley Lambers, H. Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| title | Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| title_full | Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| title_fullStr | Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| title_full_unstemmed | Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| title_short | Is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| title_sort | is nitrogen transfer among plants enhanced by contrasting nutrient-acquisition strategies? |
| topic | ectomycorrhiza biodiversity - mycorrhizal networks isotope 15N plant coexistence arbuscular mycorrhiza cluster roots ecological restoration |
| url | http://hdl.handle.net/20.500.11937/46041 |