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 DOI Creative Commons
Inés Ibáñez, Morgan R. McPherson, Rima A. Upchurch

et al.

Plant-Environment Interactions, Journal Year: 2025, Volume and Issue: 6(3)

Published: May 8, 2025

The plant-mycorrhizal fungi relationship can range from mutualistic to parasitic as a function of the fungal taxa involved, plant ontogeny, well availability resources. Despite implications this may have on forest carbon cycling and storage, we know little about how mature trees be impacted by mycorrhizae impact vary across landscape. We collected growth data two arbuscular mycorrhizal (AMF)-associated tree species, Acer rubrum A. saccharum, one ectomycorrhizal (EMF)-associated Quercus rubra, assess fungi-plant association along gradient nitrogen (N) availability. Individual assessments relative abundances showed non-linear associations with growth; positive for AMF-associated were mostly under low N, whereas neutral EMF-associated mainly took place at high N. Only exhibited greater its soil-specific community when compared predictions random soil community. Because are likely mediate plants respond warming, increasing levels N deposition atmospheric CO2, understanding these relationships is critical accurately forecasting growth.

Language: Английский

A Model of the Ectomycorrhizal Contribution to Forest Soil C and N Dynamics and Tree N Supply Within the EFIMOD3 Model System DOI Creative Commons
Oleg Chertov, P.A. Frolov, Vladimir Shanin

et al.

Plants, Journal Year: 2025, Volume and Issue: 14(3), P. 417 - 417

Published: Jan. 31, 2025

Mycorrhizal symbiosis has been the focus of research for more than a century due to positive effect fungi on growth majority woody plants. The extramatrical mycelium (EMM) ectomycorrhiza (EMR) accounts up one-third total soil microbial biomass, whereas litter from this short-living pool 60% litterfall mass in forest ecosystems. functioning EMR improves nitrogen (N) nutrition trees and thus contributes carbon (C) balance soils. model presented here is an attempt describe these functions quantitatively. It calculates EMM subsequent "mining" additional recalcitrant organic matter (SOM) growth, with associated formation "dissolved carbon". decomposition carried out by all organisms food webs, forming available NH4+ first phase then solid-phase by-products (excretes) as new labile SOM pool. These substances are feedback that determines role vegetation. A sensitivity analysis revealed leading C:N ratio biotic components dynamics EMM. validation showed satisfactory agreement between simulated observed data relation respiration larch plantations different ages. Model testing within EFIMOD3 system allowed quantitative assessment contribution ecosystem respiration. demonstrated adequacy theoretical background used model, fast cycle biota webs without direct resource exchange plants fungi.

Language: Английский

Citations

0
Metabolomics: Towards Understanding of Plant-Microbe Interaction for Improved Productivity DOI
Neha Saini, Sonam Kumari,

Hemlata Kumari

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
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 DOI Creative Commons
Inés Ibáñez, Morgan R. McPherson, Rima A. Upchurch

et al.

Plant-Environment Interactions, Journal Year: 2025, Volume and Issue: 6(3)

Published: May 8, 2025

The plant-mycorrhizal fungi relationship can range from mutualistic to parasitic as a function of the fungal taxa involved, plant ontogeny, well availability resources. Despite implications this may have on forest carbon cycling and storage, we know little about how mature trees be impacted by mycorrhizae impact vary across landscape. We collected growth data two arbuscular mycorrhizal (AMF)-associated tree species, Acer rubrum A. saccharum, one ectomycorrhizal (EMF)-associated Quercus rubra, assess fungi-plant association along gradient nitrogen (N) availability. Individual assessments relative abundances showed non-linear associations with growth; positive for AMF-associated were mostly under low N, whereas neutral EMF-associated mainly took place at high N. Only exhibited greater its soil-specific community when compared predictions random soil community. Because are likely mediate plants respond warming, increasing levels N deposition atmospheric CO2, understanding these relationships is critical accurately forecasting growth.

Language: Английский

Citations

0