Počet záznamů: 1
Adaptive root foraging strategies along a boreal–temperate forest gradient
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SYSNO ASEP 0480004 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Adaptive root foraging strategies along a boreal–temperate forest gradient Tvůrce(i) Ostonen, I. (EE)
Truu, M. (EE)
Helmisaari, H.-S. (FI)
Lukač, M. (CZ)
Borken, W. (DE)
Vanguelova, H. (GB)
Godbold, Douglas (UEK-B) ORCID, SAI
Löhmus, K. (EE)
Zang, U. (DE)
Tedersoo, L. (EE)
Preem, J.-K. (EE)
Rosenvald, K. (EE)
Aosaar, J. (EE)
Armolaitis, K. (LT)
Frey, J. (EE)
Kabral, N. (EE)
Kukumägi, M. (EE)
Leppälammi-Kujansuu, J. (FI)
Lindroos, A.-J. (FI)
Merila, P. (FI)
Napa, Ü. (EE)
Nöjd, P. (FI)
Parts, K. (FI)
Uri, V. (EE)
Varik, M. (EE)
Truu, J. (FI)Zdroj.dok. New Phytologist - ISSN 0028-646X
Roč. 215, č. 3 (2017), s. 977-991Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova boreal and temperate forests ; climate gradient ; ectomycorrhizal (EcM) mycelium ; fine and ectomycorrhizal root biomass ; root foraging ; root morphology ; soil and rhizosphere bacteria ; soil C ; N ratio Vědní obor RIV EF - Botanika Obor OECD Plant sciences, botany Způsob publikování Open access Institucionální podpora RVO:67179843 - RVO:67179843 UT WOS 000405197500009 EID SCOPUS 85020214882 DOI 10.1111/nph.14643 Anotace The tree root-mycorhizosphere plays a key role in resource uptake, but also in the adaptation of forests to changing environments.
The adaptive foraging mechanisms of ectomycorrhizal (EcM) and fine roots of Picea abies, Pinus sylvestris and Betula pendula were evaluated along a gradient from temperate to subarctic boreal forest (38 sites between latitudes 48 degrees N and 69 degrees N) in Europe. Variables describing tree resource uptake structures and processes (absorptive fine root biomass and morphology, nitrogen (N) concentration in absorptive roots, extramatrical mycelium (EMM) biomass, community structure of root-associated EcM fungi, soil and rhizosphere bacteria) were used to analyse relationships between root system functional traits and climate, soil and stand characteristics.
Absorptive fine root biomass per stand basal area increased significantly from temperate to boreal forests, coinciding with longer and thinner root tips with higher tissue density, smaller EMM biomass per root length and a shift in soil microbial community structure. The soil carbon (C) : N ratio was found to explain most of the variability in absorptive fine root and EMM biomass, root tissue density, N concentration and rhizosphere bacterial community structure.
We suggest a concept of absorptive fine root foraging strategies involving both qualitative and quantitative changes in the root-mycorrhiza-bacteria continuum along climate and soil C : N gradients.Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2018 Elektronická adresa https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.14643
Počet záznamů: 1