Houles A., Vincent B., David M., Ducousso M., Galiana A., Juillot Farid, Hannibal Laure, Carriconde F., Fritsch Emmanuel, Jourand Philippe. (2018). Ectomycorrhizal communities associated with the legume Acacia spirorbis growing on contrasted edaphic constraints in New Caledonia. Microbial Ecology, 76 (4), p. 964-975. ISSN 0095-3628.
Titre du document
Ectomycorrhizal communities associated with the legume Acacia spirorbis growing on contrasted edaphic constraints in New Caledonia
Année de publication
2018
Auteurs
Houles A., Vincent B., David M., Ducousso M., Galiana A., Juillot Farid, Hannibal Laure, Carriconde F., Fritsch Emmanuel, Jourand Philippe
Source
Microbial Ecology, 2018,
76 (4), p. 964-975 ISSN 0095-3628
This study aims to characterize the ectomycorrhizal (ECM) communities associated with Acacia spirorbis, a legume tree widely spread in New Caledonia that spontaneously grows on contrasted edaphic constraints, i.e. calcareous, ferralitic and volcano-sedimentary soils. Soil geochemical parameters and diversity of ECM communities were assessed in 12 sites representative of the three mains categories of soils. The ectomycorrhizal status of Acacia spirorbis was confirmed in all studied soils, with a fungal community dominated at 92% by Basidiomycota, mostly represented by/tomentella-thelephora (27.6%), /boletus (15.8%), /sebacina (10.5%), /russula-lactarius (10.5%) and /pisolithus-scleroderma (7.9%) lineages. The diversity and the proportion of the ECM lineages were similar for the ferralitic and volcano-sedimentary soils but significantly different for the calcareous soils. These differences in the distribution of the ECM communities were statistically correlated with pH, Ca, P and Al in the calcareous soils and with Co in the ferralitic soils. Altogether, these data suggest a high capacity of A. spirorbis to form ECM symbioses with a large spectrum of fungi regardless the soil categories with contrasted edaphic parameters.
Plan de classement
Sciences du monde végétal [076]
;
Biotechnologies [084]
Description Géographique
NOUVELLE CALEDONIE
Localisation
Fonds IRD [F B010074319]
Identifiant IRD
fdi:010074319
