DE ROMAN, MIRIAM & ANA Mª DE MIGUEL.
Dpto. Botánica, Facultad de Ciencias, Universidad de Navarra, E-31080 Pamplona, SPAIN.
A recently-burned area located in Nazar (Navarra, Spain) will be reforestated
with nursery-grown Quercus ilex L. subsp. ballota (Desf.) Samp.
plantlets. A study of the ectomycorrhizae that occur naturally in these nursery-grown
plantlets has been carried out in order to identify the ectomycorrhizal fungi
that are entering the ecosystem. On the other hand, the mycorrhizal status of
evergreen oak trees that have survived fire has been analysed as well.
The long-term aim of this study is the monitoring of the ectomycorrhizal succession,
and the possible positive influence of mycorrhization in reforestation purposes.
The descriptions of several morphotypes of ectomycorrhizae found both in nursery-grown
plantlets and in surviving evergreen oak trees are provided, including photographs
and drawings of different macroscopic and microscopic features of the mycorrhiza,
such as size, colour, branching system, emanating hyphae, mantle surface, mantle
edge and rhizomorphs.
Key words: Ectomycorrhizae, Quercus ilex, Reforestation, Nursery, Navarra, Spain.