First production of Italian white truffle (Tuber magnatum Pico) ascocarps in an orchard outside its natural range distribution in France.

Truffles are ectomycorrhizal species forming edible ascocarps. The Italian white truffle (Tuber magnatum Pico) is the most famous and expensive species harvested to date; it comes exclusively from natural habitats in European countries. The annual production of T.

Frequency of the two mating types in the soil under productive and non-productive trees in five French orchards of the Périgord black truffle (Tuber melanosporum Vittad.).

The Périgord black truffle (Tuber melanosporum Vittad.) is an ectomycorrhizal fungus forming edible fructifications. The production of T.