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First report of Pleurotus fuscosquamulosus (Pleurotaceae, Basidiomycota) in Italy naturally occurring on new tropical hosts

  • Autori: L. Torta, P. Bella, G. Conigliaro, G. Mirabile, V. A. Laudicina, S. Giambra, G. Venturella, M. L. Gargano
  • Anno di pubblicazione: 2019
  • Tipologia: Articolo in rivista
  • OA Link:


Basidiomata of a mushroom macroscopically recognised as Pleurotus cystidosus sensu latu were collected on the trunks of three tropical ornamental trees such as Broussonetia papyrifera, Yucca elephantipes, and Paulownia tomentosa in the Parco d’Orleans, an urban park in the town of Palermo (Sicily, Italy). All the plants showed cavities and white rot symptoms at the base of the trunks. Macro- and microscopic observations on both collected basidiomata and isolated colonies, as well as molecular analysis, allowed identifying the collected basidiomata as Pleurotus fuscosquamulosus and its anamorph as Antromycopsis fuscosquamulosus. These species belong to the subgenus Coremiopleurotus that includes different species producing synnematoid fructifications. The positive reaction of the colonies to the syringaldazine and the artificial inoculation tests on wood blocks of B. papyrifera confirmed its white wood rotting activity. To our knowledge, this is the first report of occurring of P. fuscosquamulosus in Italy on three new tropical plant hosts.