Ectomycorrhizal fungal diversity increases phosphorus uptake efficiency of European beech

The New Phytologist
Julia KöhlerIna C Meier

Abstract

Increases in summer droughts and nitrogen (N) deposition have raised concerns of widespread biodiversity loss and nutrient imbalances, but our understanding of the ecological role of ectomycorrhizal fungal (ECMF) diversity in mediating root functions remains a major knowledge gap. We used different global change scenarios to experimentally alter the composition of ECMF communities colonizing European beech saplings and examined the consequences for phosphorus (P) uptake (H333 PO4 feeding experiment) and use efficiencies of trees. Specifically, we simulated increases in temperature and N deposition and decreases in soil moisture and P availability in a factorial experiment. Here, we show that ECMF α diversity is a major factor contributing to root functioning under global change. P uptake efficiency of beech significantly increased with increasing ECMF species richness and diversity, as well as with decreasing P availability. As a consequence of decreases in ECMF diversity, P uptake efficiency decreased when soil moisture was limiting. By contrast, P use efficiencies were a direct (negative) function of P availability and not of ECMF diversity. We conclude that increasing summer droughts may reduce ECMF diversity and the complem...Continue Reading

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Citations

Nov 9, 2018·The New Phytologist·Francis M MartinMarc-André Selosse
Apr 27, 2019·Frontiers in Plant Science·Inga DirksIna C Meier
Nov 24, 2020·The Science of the Total Environment·Arthur Prudêncio de A PereiraElke J B N Cardoso
Jan 10, 2021·The ISME Journal·Justin A MeedsMelanie D Jones
Dec 21, 2020·Physiologia Plantarum·Yuming SunShiwei Guo
May 25, 2021·Frontiers in Plant Science·Taiqiang LiJiangyun Gao
Jul 27, 2021·Ecology·Sara J Germain, James A Lutz

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