Transfer to forest nurseries significantly affects mycorrhizal community composition of Asteropeia mcphersonii wildings

Charline Henry , Jeanne-Françoise Raivoarisoa , Angélo Razafimamonjy , Heriniaina Ramanankierana , Paul Andrianaivomahefa , Marc Ducousso , Marc-Andre Selosse


Mycorrhizal symbiosis is extremely important for tree growth, survival and resistance after transplantation particularly in Madagascar where deforestation is a major concern. The importance of mycorrhizal symbiosis is further increased when soil conditions at the planting site are limiting. To identify technical itineraries capable of improving ecological restoration in Madagascar, we needed to obtain native ectomycorrhizal (ECM) saplings with a wide diversity of ECM fungi. To this end, we transplanted ECM seedlings from the wild (wildlings) to a nursery. Using molecular characterisation of internal transcribed spacer (ITS) rDNA, we tested the effect of transplanting Asteropeia mcphersonii wildlings on ECM communities after 8 months of growth in the nursery. With or without the addition of soil from the site where the seedlings were sampled to the nursery substrate, we observed a dramatic change in the composition of fungal communities with a decrease in the ECM infection rate, a tremendous increase in the abundance of an operational taxonomic unit (OTU) taxonomically close to the order Trechisporales and the disappearance of all OTUs of Boletales. Transplanting to the nursery and/or to nursery conditions was shown to be incompatible with the survival and even less with the development in the nursery of most ECM fungi naturally associated with A. mcphersonii wildings.
Author Charline Henry
Charline Henry,,
, Jeanne-Françoise Raivoarisoa
Jeanne-Françoise Raivoarisoa,,
, Angélo Razafimamonjy
Angélo Razafimamonjy,,
, Heriniaina Ramanankierana
Heriniaina Ramanankierana,,
, Paul Andrianaivomahefa
Paul Andrianaivomahefa,,
, Marc Ducousso
Marc Ducousso,,
, Marc-Andre Selosse (FB / DPTNC)
Marc-Andre Selosse,,
- Department of Plant Taxonomy and Nature Conservation
Other language title versions
Journal seriesMycorrhiza, ISSN 0940-6360, (A 35 pkt)
Issue year2017
Publication size in sheets0.5
Keywords in Englishforest nursery, ectomycorrhizal community, Asteropeia mcphersonii, Madagascar, fungal ITS
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2017 = 2.778 (2) - 2017=2.991 (5)
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