Year-round monitoring of diversity and potential metabolic activity of the ectomycorrhizal community in a beech (Fagus silvatica) forest subjected to two thinning regimes

Mycorrhiza
Marc BuéeJean Garbaye

Abstract

This work was aimed at understanding how the functional diversity of ectomycorrhizas (ECM) is driven by environmental factors and how it adapts to the structure of the forest stand. Superficial fine roots were sampled 21 times during an entire year in two adjacent plots (no thinning and strong thinning) of a mature beech (Fagus silvatica) forest. Individual ectomycorrhizal root tips were morphologically characterised and the symbiotic fungi were molecularly identified. ECM were also tested for dehydrogenase and acid phosphatase activities, and soil moisture and temperature were recorded. The results provide a description of ECM community dynamics over a whole year in the two stands. The main conclusions are threefold: (1) the species structure of the ECM community and metabolic activity of each morphotype change depending on the season, temperature and soil moisture, and a number of morphotypes are more abundant and active in winter than in summer, (2) the silviculture treatment (strong thinning) modifies the ectomycorrhizal community structure, and (3) the overall function of the ECM community results from the individual time pattern and specialisation of each morphotype.

References

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Citations

Sep 16, 2008·Applied and Environmental Microbiology·P E CourtyF Martin
Jul 29, 2008·Applied and Environmental Microbiology·Pierre-Emmanuel CourtyJean Garbaye
Oct 27, 2009·Applied and Environmental Microbiology·David J BurkeCharlotte R Chan
Feb 20, 2007·Mycorrhiza·Magali di PietroJean Garbaye
Mar 12, 2011·Microbial Ecology·Malin BombergJussi Heinonsalo
Jun 14, 2005·The New Phytologist·Pierre-Emmanuel CourtyJean Garbaye
Apr 7, 2009·Plant, Cell & Environment·Christine DruebertAndrea Polle
Mar 29, 2007·The New Phytologist·Roger T KoideJean Garbaye
Aug 7, 2012·The New Phytologist·Thomas W Kuyper
Sep 10, 2013·The New Phytologist·Jana VoříškováPetr Baldrian
Dec 20, 2014·The New Phytologist·Björn D Lindahl, Anders Tunlid
Nov 11, 2005·Mycological Research·Miriam De RomanAna Maria De Miguel
Jun 12, 2014·Frontiers in Microbiology·Carolyn Churchland, Sue J Grayston
Aug 12, 2016·Scientific Reports·Kezia GoldmannTesfaye Wubet
Jul 16, 2010·Tree Physiology·C Plassard, B Dell

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