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Changes in fungal communities along a boreal forest soil fertility gradient

Sterkenburg, Erica; Bahr, Adam LU ; Durling, Mikael Brandstroem; Clemmensen, Karina E. and Lindahl, Bjoern D. (2015) In New Phytologist 207(4). p.1145-1158
Abstract
Boreal forests harbour diverse fungal communities with decisive roles in decomposition and plant nutrition. Although changes in boreal plant communities along gradients in soil acidity and nitrogen (N) availability are well described, less is known about how fungal taxonomic and functional groups respond to soil fertility factors. We analysed fungal communities in humus and litter from 25 Swedish old-growth forests, ranging from N-rich Picea abies stands to acidic and N-poor Pinus sylvestris stands. 454-pyrosequencing of ITS2 amplicons was used to analyse community composition, and biomass was estimated by ergosterol analysis. Fungal community composition was significantly related to soil fertility at the levels of species, genera/orders... (More)
Boreal forests harbour diverse fungal communities with decisive roles in decomposition and plant nutrition. Although changes in boreal plant communities along gradients in soil acidity and nitrogen (N) availability are well described, less is known about how fungal taxonomic and functional groups respond to soil fertility factors. We analysed fungal communities in humus and litter from 25 Swedish old-growth forests, ranging from N-rich Picea abies stands to acidic and N-poor Pinus sylvestris stands. 454-pyrosequencing of ITS2 amplicons was used to analyse community composition, and biomass was estimated by ergosterol analysis. Fungal community composition was significantly related to soil fertility at the levels of species, genera/orders and functional groups. Ascomycetes dominated in less fertile forests, whereas basidiomycetes increased in abundance in more fertile forests, both in litter and humus. The relative abundance of mycorrhizal fungi in the humus layer remained high even in the most fertile soils. Tolerance to acidity and nitrogen deficiency seems to be of greater importance than plant carbon (C) allocation patterns in determining responses of fungal communities to soil fertility, in old-growth boreal forests. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ecosystem fertility, ergosterol, fungal biomass, fungal communities, high-throughput sequencing, mycorrhiza
in
New Phytologist
volume
207
issue
4
pages
1145 - 1158
publisher
Wiley-Blackwell
external identifiers
  • wos:000358965800023
  • scopus:84938416454
ISSN
1469-8137
DOI
10.1111/nph.13426
language
English
LU publication?
yes
id
fa3e2aa6-c994-4733-8004-7a6f148a121c (old id 7975818)
date added to LUP
2015-09-25 11:13:50
date last changed
2017-11-19 03:16:35
@article{fa3e2aa6-c994-4733-8004-7a6f148a121c,
  abstract     = {Boreal forests harbour diverse fungal communities with decisive roles in decomposition and plant nutrition. Although changes in boreal plant communities along gradients in soil acidity and nitrogen (N) availability are well described, less is known about how fungal taxonomic and functional groups respond to soil fertility factors. We analysed fungal communities in humus and litter from 25 Swedish old-growth forests, ranging from N-rich Picea abies stands to acidic and N-poor Pinus sylvestris stands. 454-pyrosequencing of ITS2 amplicons was used to analyse community composition, and biomass was estimated by ergosterol analysis. Fungal community composition was significantly related to soil fertility at the levels of species, genera/orders and functional groups. Ascomycetes dominated in less fertile forests, whereas basidiomycetes increased in abundance in more fertile forests, both in litter and humus. The relative abundance of mycorrhizal fungi in the humus layer remained high even in the most fertile soils. Tolerance to acidity and nitrogen deficiency seems to be of greater importance than plant carbon (C) allocation patterns in determining responses of fungal communities to soil fertility, in old-growth boreal forests.},
  author       = {Sterkenburg, Erica and Bahr, Adam and Durling, Mikael Brandstroem and Clemmensen, Karina E. and Lindahl, Bjoern D.},
  issn         = {1469-8137},
  keyword      = {ecosystem fertility,ergosterol,fungal biomass,fungal communities,high-throughput sequencing,mycorrhiza},
  language     = {eng},
  number       = {4},
  pages        = {1145--1158},
  publisher    = {Wiley-Blackwell},
  series       = {New Phytologist},
  title        = {Changes in fungal communities along a boreal forest soil fertility gradient},
  url          = {http://dx.doi.org/10.1111/nph.13426},
  volume       = {207},
  year         = {2015},
}