Our data suggest that selecting fungal ECM isolates based on (i) their capacity to adapt to the ultramafic abiotic stresses such as presence of metals and unbalanced Ca/Mg ratio, and (ii) their
efficacy in improving plant growth and mineral nutrition, might be a prerequisite to use ECM as a biotechnological tool for inoculum in rehabilitation strategies of ultramafic ecosystems degraded
by mining activities as suggested by O’Dell and Claassen (2011).In addition, our results confirm that the use of endemic plants might also a prerequisite to succeed in such strategies as previously
reported by Jaffré et al. (1994).