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- Title
Production of ectomycorrhizal mycelium peaks during canopy closure in Norway spruce forests.
- Authors
Wallander, Håkan; Johansson, Ulf; Sterkenburg, Erica; Brandström Durling, Mikael; Lindahl, Björn D.
- Abstract
•Here, species composition and biomass production of actively growing ectomycorrhizal (EM) mycelia were studied over the rotation period of managed Norway spruce ( Picea abies) stands in south-western Sweden. •The EM mycelia were collected using ingrowth mesh bags incubated in the forest soil during one growing season. Fungal biomass was estimated by ergosterol analysis and the EM species were identified by 454 sequencing of internal transcribed spacer (ITS) amplicons. Nutrient availability and the fungal biomass in soil samples were also estimated. •Biomass production peaked in young stands (10–30 yr old) before the first thinning phase. Tylospora fibrillosa dominated the EM community, especially in these young stands, where it constituted 80% of the EM amplicons derived from the mesh bags. Species richness increased in older stands. •The establishment of EM mycelial networks in young Norway spruce stands requires large amounts of carbon, while much less is needed to sustain the EM community in older stands. The variation in EM biomass production over the rotation period has implications for carbon sequestration rates in forest soils.
- Subjects
SWEDEN; ECTOMYCORRHIZAL fungi; ECTOMYCORRHIZAS; MYCELIUM; PLANT canopies; NORWAY spruce; FOREST soils; BIOMASS production; CARBON sequestration; SOIL composition; ERGOSTEROL; SOIL chronosequences
- Publication
New Phytologist, 2010, Vol 187, Issue 4, p1124
- ISSN
0028-646X
- Publication type
Article
- DOI
10.1111/j.1469-8137.2010.03324.x