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Secreted enzymatic activities of ectomycorrhizal fungi as a case study of functional diversity and functional redundancy

Rineau, Francois LU and Courty, Pierre-Emmanuel (2011) In Annals of Forest Science 68(1). p.69-80
Abstract
Introduction Many studies deal with taxonomic diversity (TD) or estimation of functional traits of ectomycorrhizal communities. However, to our knowledge, none of them has ever tried to calculate the functional diversity (FD) of those communities, which is of critical importance for the diversity and reliability of nutrient supply to the tree. Objectives Here, we propose to evaluate the functional diversity of ECM communities in their potential ability to mobilise nutrients from organic matter, in two different forest stands. Results Results show that in both forest stands: TD is strongly correlated with FD. ECM species are functionally redundant within the communities for their abilities to secrete organic matter degrading enzymes. The... (More)
Introduction Many studies deal with taxonomic diversity (TD) or estimation of functional traits of ectomycorrhizal communities. However, to our knowledge, none of them has ever tried to calculate the functional diversity (FD) of those communities, which is of critical importance for the diversity and reliability of nutrient supply to the tree. Objectives Here, we propose to evaluate the functional diversity of ECM communities in their potential ability to mobilise nutrients from organic matter, in two different forest stands. Results Results show that in both forest stands: TD is strongly correlated with FD. ECM species are functionally redundant within the communities for their abilities to secrete organic matter degrading enzymes. The functional traits (enzymatic activities) of the studied ectomycorrhizal communities are not related within genera, nor within families or phylogenetically related groups of taxa. Some species show a wide phenotypic plasticity for their enzymatic profiles. Conclusion This study provides the first evidence of functional redundancy in ectomycorrhizal communities. More studies are now needed to evaluate the robustness of these results at wider ecosystem scales and using other relevant functional traits. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ectomycorrhiza, Functional diversity, Functional redundancy, Functional, plasticity, Functional traits, Taxonomic diversity
in
Annals of Forest Science
volume
68
issue
1
pages
69 - 80
publisher
EDP Sciences
external identifiers
  • wos:000290447600008
  • scopus:80051487189
ISSN
1286-4560
DOI
10.1007/s13595-010-0008-4
project
BECC
language
English
LU publication?
yes
id
5ef9c766-badf-40af-bcbc-6b186338a69c (old id 1986569)
date added to LUP
2011-06-29 11:18:12
date last changed
2017-10-29 03:14:41
@article{5ef9c766-badf-40af-bcbc-6b186338a69c,
  abstract     = {Introduction Many studies deal with taxonomic diversity (TD) or estimation of functional traits of ectomycorrhizal communities. However, to our knowledge, none of them has ever tried to calculate the functional diversity (FD) of those communities, which is of critical importance for the diversity and reliability of nutrient supply to the tree. Objectives Here, we propose to evaluate the functional diversity of ECM communities in their potential ability to mobilise nutrients from organic matter, in two different forest stands. Results Results show that in both forest stands: TD is strongly correlated with FD. ECM species are functionally redundant within the communities for their abilities to secrete organic matter degrading enzymes. The functional traits (enzymatic activities) of the studied ectomycorrhizal communities are not related within genera, nor within families or phylogenetically related groups of taxa. Some species show a wide phenotypic plasticity for their enzymatic profiles. Conclusion This study provides the first evidence of functional redundancy in ectomycorrhizal communities. More studies are now needed to evaluate the robustness of these results at wider ecosystem scales and using other relevant functional traits.},
  author       = {Rineau, Francois and Courty, Pierre-Emmanuel},
  issn         = {1286-4560},
  keyword      = {Ectomycorrhiza,Functional diversity,Functional redundancy,Functional,plasticity,Functional traits,Taxonomic diversity},
  language     = {eng},
  number       = {1},
  pages        = {69--80},
  publisher    = {EDP Sciences},
  series       = {Annals of Forest Science},
  title        = {Secreted enzymatic activities of ectomycorrhizal fungi as a case study of functional diversity and functional redundancy},
  url          = {http://dx.doi.org/10.1007/s13595-010-0008-4},
  volume       = {68},
  year         = {2011},
}