Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees

ABSTRACT The plant–mycorrhizal fungi relationship can range from mutualistic to parasitic as a function of the fungal taxa involved, plant ontogeny, as well as the availability of resources. Despite the implications this relationship may have on forest carbon cycling and storage, we know little abou...

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Main Authors: Inés Ibáñez, Morgan R. McPherson, Rima A. Upchurch, Donald R. Zak
Format: Article
Language:English
Published: Wiley 2025-06-01
Series:Plant-Environment Interactions
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Online Access:https://doi.org/10.1002/pei3.70055
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author Inés Ibáñez
Morgan R. McPherson
Rima A. Upchurch
Donald R. Zak
author_facet Inés Ibáñez
Morgan R. McPherson
Rima A. Upchurch
Donald R. Zak
author_sort Inés Ibáñez
collection DOAJ
description ABSTRACT The plant–mycorrhizal fungi relationship can range from mutualistic to parasitic as a function of the fungal taxa involved, plant ontogeny, as well as the availability of resources. Despite the implications this relationship may have on forest carbon cycling and storage, we know little about how mature trees may be impacted by mycorrhizae and how this impact may vary across the landscape. We collected growth data of two arbuscular mycorrhizal fungi (AMF)‐associated tree species, Acer rubrum and A. saccharum, and one ectomycorrhizal fungi (EMF)‐associated tree species, Quercus rubra, to assess how the mycorrhizal fungi–plant association may vary along a gradient of nitrogen (N) availability. Individual assessments of fungal taxa relative abundances showed non‐linear associations with tree growth; positive associations for the two AMF‐associated trees were mostly under low N, whereas positive to neutral associations for the EMF‐associated tree mainly took place at high N. Only A. rubrum exhibited greater tree growth with its tree soil‐specific mycorrhizal community when compared with predictions under a random mycorrhizal soil community. Because mycorrhizal fungi are likely to mediate how plants respond to warming, increasing levels of N deposition and of atmospheric CO2, understanding these relationships is critical to accurately forecasting tree growth.
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spelling doaj-art-a5df4bdc8cb549f596f949dcc6067c822025-08-20T02:38:21ZengWileyPlant-Environment Interactions2575-62652025-06-0163n/an/a10.1002/pei3.70055Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated TreesInés Ibáñez0Morgan R. McPherson1Rima A. Upchurch2Donald R. Zak3School for Environment and Sustainability University of Michigan Ann Arbor Michigan USASchool for Environment and Sustainability University of Michigan Ann Arbor Michigan USASchool for Environment and Sustainability University of Michigan Ann Arbor Michigan USASchool for Environment and Sustainability University of Michigan Ann Arbor Michigan USAABSTRACT The plant–mycorrhizal fungi relationship can range from mutualistic to parasitic as a function of the fungal taxa involved, plant ontogeny, as well as the availability of resources. Despite the implications this relationship may have on forest carbon cycling and storage, we know little about how mature trees may be impacted by mycorrhizae and how this impact may vary across the landscape. We collected growth data of two arbuscular mycorrhizal fungi (AMF)‐associated tree species, Acer rubrum and A. saccharum, and one ectomycorrhizal fungi (EMF)‐associated tree species, Quercus rubra, to assess how the mycorrhizal fungi–plant association may vary along a gradient of nitrogen (N) availability. Individual assessments of fungal taxa relative abundances showed non‐linear associations with tree growth; positive associations for the two AMF‐associated trees were mostly under low N, whereas positive to neutral associations for the EMF‐associated tree mainly took place at high N. Only A. rubrum exhibited greater tree growth with its tree soil‐specific mycorrhizal community when compared with predictions under a random mycorrhizal soil community. Because mycorrhizal fungi are likely to mediate how plants respond to warming, increasing levels of N deposition and of atmospheric CO2, understanding these relationships is critical to accurately forecasting tree growth.https://doi.org/10.1002/pei3.70055Acer rubrumAcer saccharumarbuscular mycorrhizal fungiectomycorrhizal funginitrogenQuercus rubra
spellingShingle Inés Ibáñez
Morgan R. McPherson
Rima A. Upchurch
Donald R. Zak
Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees
Plant-Environment Interactions
Acer rubrum
Acer saccharum
arbuscular mycorrhizal fungi
ectomycorrhizal fungi
nitrogen
Quercus rubra
title Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees
title_full Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees
title_fullStr Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees
title_full_unstemmed Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees
title_short Mycorrhizal Fungi Influence on Mature Tree Growth: Stronger in High‐Nitrogen Soils for an EMF‐Associated Tree and in Low‐Nitrogen Soils for Two AMF‐Associated Trees
title_sort mycorrhizal fungi influence on mature tree growth stronger in high nitrogen soils for an emf associated tree and in low nitrogen soils for two amf associated trees
topic Acer rubrum
Acer saccharum
arbuscular mycorrhizal fungi
ectomycorrhizal fungi
nitrogen
Quercus rubra
url https://doi.org/10.1002/pei3.70055
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