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Ectomycorrhizal status of a mature productive black truffle plantation
Authors: Agueda, B. (Beatriz)
Fernandez-Toiran, L.M. (Luz Marina)
Miguel Velasco, A.M. (Ana Maria) de
Martinez-Peña, F. (Fernando)
Keywords: Materias Investigacion::Ciencias de la vida::Botánica
Characterization of ectomycorrhizae
Fungal diversity
Quercus ilex
Tuber melanosporum
Truffle plantations
Issue Date: 2010
Publisher: Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
ISSN: 2171-5068
Citation: Agueda B, Fernandez-Toiran LM, De Miguel AM, Martinez-Peña F. Ectomycorrhizal status of a mature productive black truffle plantation. For Syst 2010; 19(1): 89-97.
The truffle-plantation «Los Quejigares» was planted in 1971 by AROTZ-CATESA company. It is a 600 ha plot of Quercus ilexmycorrhizated with Tuber melanosporum at 1,250 m a.s.l. on calcareous soil. This plantation is the largest of the world and one of the eldest truffle-plantations of Spain and it is in full production. Knowledge of the mycorrhizal status of a mature black truffle plantation is significant for the improvement of truffle cultivation. Ectomycorrhizae were studied for knowing T. melanosporum persistence and diversity and abundance of other ectomycorrhizal types. Roots of 16 holmoaks were sampled, 12 trees produce truffle sporocarps and four did not. It was found a mean of about 35% of T. melanosporum ectomycorrhizae in the studied trees, being this significantly higher in the productive trees. Also, 105 more different ectomycorrhizal types were found. In spite of the high number of morphotypes found, it seems that they do not replace T. melanosporum, showing that there is a coexistence between species in the fungal community associated to the roots.
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