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Weak habitat specificity in ectomycorrhizal communities associated with Salix herbacea and Salix polaris in alpine tundra

Ryberg, M; Andreasen, M and Bjork, RG (2011) In Mycorrhiza 21(4). p.289-296
Abstract
This study explores mid-alpine ectomycorrhizal communities on Salix herbacea and Salix polaris in plant communities differing in nutrient status and snow conditions. Plant species were identified by tracking roots back to above ground structures while fungal species were identified using molecular methods. The fungi were identified to 34 molecular operational taxonomic units (MOTUs)/species but species accumulation curves indicated that the communities were only partially sampled. The estimated total species richness was 49 (+/- 9 SD) MOTUs/species. No significant ectomycorrhizal community specificity was found between the two plant species and only weak specificity between different plant communities. Furthermore, no difference in... (More)
This study explores mid-alpine ectomycorrhizal communities on Salix herbacea and Salix polaris in plant communities differing in nutrient status and snow conditions. Plant species were identified by tracking roots back to above ground structures while fungal species were identified using molecular methods. The fungi were identified to 34 molecular operational taxonomic units (MOTUs)/species but species accumulation curves indicated that the communities were only partially sampled. The estimated total species richness was 49 (+/- 9 SD) MOTUs/species. No significant ectomycorrhizal community specificity was found between the two plant species and only weak specificity between different plant communities. Furthermore, no difference in proportion of colonized root tips could be demonstrated between plant communities. However, some fungal taxa showed tendencies to associate with specific environmental conditions. Sebacinaceae, Inocybe egenula, Russula cf. emetica, and a Tomentella sp. were found in meadow communities but not in the heath communities. Sistotrema cf. alboluteum and Tomentella cf. terrestris were only found in the dry and mesic heath communities. Classifications into exploration types showed that the contact type is more abundant in the dry heath community than the other communities. Cenococcum geophilum was the most common species but Cortinarius spp., Russula spp., Tomentella spp., and Lactarius spp. were also common. This study confirms that alpine communities are rich in ectomycorrhizal fungi including species from a wide variety of fungal lineages and also show that many dominant species have wide ecological amplitude. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Alpine, Arctic, Ectomycorrhiza, Environmental gradient, Exploration types, Salix
in
Mycorrhiza
volume
21
issue
4
pages
289 - 296
publisher
Springer
external identifiers
  • scopus:79955037072
ISSN
1432-1890
DOI
10.1007/s00572-010-0335-1
project
BECC
language
English
LU publication?
no
id
533e7b41-5de4-4cb0-8cae-9a0e9161ec8a (old id 4448650)
date added to LUP
2014-05-23 12:11:23
date last changed
2017-11-05 03:54:37
@article{533e7b41-5de4-4cb0-8cae-9a0e9161ec8a,
  abstract     = {This study explores mid-alpine ectomycorrhizal communities on Salix herbacea and Salix polaris in plant communities differing in nutrient status and snow conditions. Plant species were identified by tracking roots back to above ground structures while fungal species were identified using molecular methods. The fungi were identified to 34 molecular operational taxonomic units (MOTUs)/species but species accumulation curves indicated that the communities were only partially sampled. The estimated total species richness was 49 (+/- 9 SD) MOTUs/species. No significant ectomycorrhizal community specificity was found between the two plant species and only weak specificity between different plant communities. Furthermore, no difference in proportion of colonized root tips could be demonstrated between plant communities. However, some fungal taxa showed tendencies to associate with specific environmental conditions. Sebacinaceae, Inocybe egenula, Russula cf. emetica, and a Tomentella sp. were found in meadow communities but not in the heath communities. Sistotrema cf. alboluteum and Tomentella cf. terrestris were only found in the dry and mesic heath communities. Classifications into exploration types showed that the contact type is more abundant in the dry heath community than the other communities. Cenococcum geophilum was the most common species but Cortinarius spp., Russula spp., Tomentella spp., and Lactarius spp. were also common. This study confirms that alpine communities are rich in ectomycorrhizal fungi including species from a wide variety of fungal lineages and also show that many dominant species have wide ecological amplitude.},
  author       = {Ryberg, M and Andreasen, M and Bjork, RG},
  issn         = {1432-1890},
  keyword      = {Alpine,Arctic,Ectomycorrhiza,Environmental gradient,Exploration types,Salix},
  language     = {eng},
  number       = {4},
  pages        = {289--296},
  publisher    = {Springer},
  series       = {Mycorrhiza},
  title        = {Weak habitat specificity in ectomycorrhizal communities associated with Salix herbacea and Salix polaris in alpine tundra},
  url          = {http://dx.doi.org/10.1007/s00572-010-0335-1},
  volume       = {21},
  year         = {2011},
}