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The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition
Mycorrhizal associations between fungi and plant roots have globally significant impacts on nutrient cycling. Mucoromycotina ‘fine root endophytes’ (MFRE) are a distinct and recently characterised group of mycorrhiza‐forming fungi that associate with the roots of a range of host plant species. Given...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Blackwell Publishing Ltd
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9328347/ https://www.ncbi.nlm.nih.gov/pubmed/35560043 http://dx.doi.org/10.1111/ppl.13715 |
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author | Howard, Nathan Pressel, Silvia Kaye, Ryan S. Daniell, Tim J. Field, Katie J. |
author_facet | Howard, Nathan Pressel, Silvia Kaye, Ryan S. Daniell, Tim J. Field, Katie J. |
author_sort | Howard, Nathan |
collection | PubMed |
description | Mycorrhizal associations between fungi and plant roots have globally significant impacts on nutrient cycling. Mucoromycotina ‘fine root endophytes’ (MFRE) are a distinct and recently characterised group of mycorrhiza‐forming fungi that associate with the roots of a range of host plant species. Given their previous misidentification and assignment as arbuscular mycorrhizal fungi (AMF) of the Glomeromycotina, it is now important to untangle the specific form and function of MFRE symbioses. In particular, relatively little is known about the nature of MFRE colonisation and its role in N uptake and transfer to host plants. Even less is known about the mechanisms by which MFRE access and assimilate N, and how this N is processed and subsequently exchanged with host plants for photosynthates. Here, we summarise and contrast the structures formed by MFRE and arbuscular mycorrhizal fungi in host plants as well as compare the N source preference of each mycorrhizal fungal group with what is currently known for MFRE N uptake. We compare the mechanisms of N assimilation and transfer to host plants utilised by the main groups of mycorrhizal fungi and hypothesise potential mechanisms for MFRE N assimilation and transfer, outlining directions for future research. |
format | Online Article Text |
id | pubmed-9328347 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Blackwell Publishing Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-93283472022-07-30 The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition Howard, Nathan Pressel, Silvia Kaye, Ryan S. Daniell, Tim J. Field, Katie J. Physiol Plant Special Issue Articles Mycorrhizal associations between fungi and plant roots have globally significant impacts on nutrient cycling. Mucoromycotina ‘fine root endophytes’ (MFRE) are a distinct and recently characterised group of mycorrhiza‐forming fungi that associate with the roots of a range of host plant species. Given their previous misidentification and assignment as arbuscular mycorrhizal fungi (AMF) of the Glomeromycotina, it is now important to untangle the specific form and function of MFRE symbioses. In particular, relatively little is known about the nature of MFRE colonisation and its role in N uptake and transfer to host plants. Even less is known about the mechanisms by which MFRE access and assimilate N, and how this N is processed and subsequently exchanged with host plants for photosynthates. Here, we summarise and contrast the structures formed by MFRE and arbuscular mycorrhizal fungi in host plants as well as compare the N source preference of each mycorrhizal fungal group with what is currently known for MFRE N uptake. We compare the mechanisms of N assimilation and transfer to host plants utilised by the main groups of mycorrhizal fungi and hypothesise potential mechanisms for MFRE N assimilation and transfer, outlining directions for future research. Blackwell Publishing Ltd 2022-05-30 2022 /pmc/articles/PMC9328347/ /pubmed/35560043 http://dx.doi.org/10.1111/ppl.13715 Text en © 2022 The Authors. Physiologia Plantarum published by John Wiley & Sons Ltd on behalf of Scandinavian Plant Physiology Society. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Special Issue Articles Howard, Nathan Pressel, Silvia Kaye, Ryan S. Daniell, Tim J. Field, Katie J. The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
title | The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
title_full | The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
title_fullStr | The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
title_full_unstemmed | The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
title_short | The potential role of Mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
title_sort | potential role of mucoromycotina ‘fine root endophytes’ in plant nitrogen nutrition |
topic | Special Issue Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9328347/ https://www.ncbi.nlm.nih.gov/pubmed/35560043 http://dx.doi.org/10.1111/ppl.13715 |
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