Plant Diversity ›› 2009, Vol. 31 ›› Issue (S16): 81-85.
Zambonelli Alessandra1, Iotti Mirco1 , Barbieri Elena2 , Amicucci Antonella2 ,
Stocchi Vilberto2 , Peintner Ursula3 , Hall Ian R.4
Zambonelli Alessandra1, Iotti Mirco1 , Barbieri Elena2 , Amicucci Antonella2 ,
Stocchi Vilberto2 , Peintner Ursula3 , Hall Ian R.4
摘要: The competition between edible ectomycorrhizal fungi ( EMF) and other ectomycorrhizal fungi have been studied in greenhouse and in the field taking into account different environmental conditions and using molecular tools as well as morphological methods . Approximately 100 ectomycorrhizal species were identified in soil fungal communities in productive areas of Boletus edulis sensu lato and in truffières of Tuber magnatum and Tuber borchii . The bacterial communities occurring in T. magnatum and T. borchii fruiting bodies during different stages of their maturation were also characterized. α- Proteobacteria, were found as major constituents of the bacterial community associated with truffle ascoma , independentely of the degree of maturation. These bacteria include members of the Sinorhizobium1089839; Ensifer and Rhizobium1089839;Agrobacterium groups, and Bradyrhizobium spp ., which are well known for their ability to fix atmospheric nitrogen. Our studies raise two important questions about truffle biology: 1 ) can the composition of microbial soil communities infuence EMF fruiting body production ?2) can nitrogen fixing bacteria play a role in truffle nutrition ?
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