caa a22 4500 605518386 CHVBK 20210128100725.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s00572-014-0597-0 doi (NATIONALLICENCE)springer-10.1007/s00572-014-0597-0 Sharing rotting wood in the shade: ectomycorrhizal communities of co-occurringbirch and hemlock seedlings [Elektronische Daten] [Sarah Poznanovic, Erik Lilleskov, Christopher Webster] Coarse woody debris (CWD)is an important nursery environment for many tree species. Understanding the communities of ectomycorrhizal fungi (ECMF)and the effect of ECMF species on tree seedling condition in CWD will elucidate the potential for ECMF-mediatedeffects on seedling dynamics. In hemlock-dominatedstands, we characterized ECMF communities associated with eastern hemlock (Tsuga canadensis (L.) Carr) and yellow birch (Betula alleghaniensis Britt) seedling pairs growing on CWD. Seedling foliage and CWD were analyzed chemically, and seedling growth, canopy cover, and canopy species determined. Thirteen fungal taxa, 12 associated with birch, and 6 with hemlock, were identified based on morphology and ITS sequencing. Five species were shared by co-occurringbirch and hemlock, representing 75% of ectomycorrhizal root tips. Rarified ECMF taxon richness per seedling was higher on birch than hemlock. Nonmetric multidimensional scaling revealed significant correlations between ordination axes, the mutually exclusive ECMF Tomentella and Lactarius spp., foliar N and K, CWD pH, and exchangeable Ca and Mg. Seedlings colonized by Lactarius and T. sublilacina differed significantly in foliar K and N, and CWD differed in exchangeable Ca and Mg. CWD pH and nutrient concentrations were low but foliar macro-nutrientconcentrations were not. We hypothesize that the dominant ECMF are adapted to low root carbohydrate availability typical in shaded environments but differ in their relative supply of different nutrients. Springer-Verlag Berlin Heidelberg (outside the USA), 2014 Ectomycorrhizal fungi nationallicence Seedlings nationallicence Coarse woody debris nationallicence Foliar nutrients nationallicence Multivariate analysis nationallicence Tsuga canadensis nationallicence Betula alleghaniensis nationallicence Poznanovic Sarah School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, 49931-1295, Houghton, MI, USA aut Lilleskov Erik Forestry Sciences Laboratory, Northern Research Station, USDA Forest Service, 410 MacInnes Drive, 49931, Houghton, MI, USA aut Webster Christopher School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, 49931-1295, Houghton, MI, USA aut Mycorrhiza Springer Berlin Heidelberg 25/2(2015-02-01), 153-164 0940-6360 25:2<153 2015 25 572 https://doi.org/10.1007/s00572-014-0597-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00572-014-0597-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Poznanovic Sarah School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, 49931-1295, Houghton, MI, USA aut NATIONALLICENCE 700 1- Lilleskov Erik Forestry Sciences Laboratory, Northern Research Station, USDA Forest Service, 410 MacInnes Drive, 49931, Houghton, MI, USA aut NATIONALLICENCE 700 1- Webster Christopher School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive, 49931-1295, Houghton, MI, USA aut NATIONALLICENCE 773 0- Mycorrhiza Springer Berlin Heidelberg 25/2(2015-02-01), 153-164 0940-6360 25:2<153 2015 25 572