cultivation truffles truffle tuber magnatum pico

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Truffle Tuber magnatum Pico

Tuber magnatum

Precious white truffle(Tuber magnatum Pico)

DIFFUSION:it is found mainly in Italy,Croatia and Slovenia.

CULTIVATION AREAS:limited;very few areas are suitable for best cultivation.It is the most precious truffle and absolutely the most difficult to cultivate.
Even if plantation is carried out after very careful and deep prelilminary research,not always does the truffle orchard produce good economic results.
The cultivation tecnique must be improved.
COMMERCIAL VALUE:high;this is due to the strong market request,to the limited production and to the low preservation of the product.

PICKING TIME:from September to December.

Tuber magnatum Pico In Melethemata inauguralia de fungorum generatione et propagatione: 80(1788) specimens examined: CMI-UNIBO 1160-30 CMI-UNIBO 1208-34 CMI-UNIBO 1208-35 CMI-UNIBO 1219-36 CMI-UNIBO 1289-44
Ascocarp Morphology. Ascocarp subglobose or globose or lobed, orifice or cavity absent, 1-6(-20) cm in diameter, yellow or ochre or brown or red, smooth, peridium glabrous, color of spore-bearing tissue grey or yellow or brown (hazel) or olive, veins narrow and numerous. Peridium (253-)337-421-505(-532) micron, outermost layers (27-)45-78-111(-146) micron, hyaline or yellow-brown (yellowish), anatomical structure pseudoparenchimatic with roundish cells, cell tangential dimension (3-)9-12-15(-16) micron, cell radial dimension (3-)6-9-12(-13) micron, innermost layers (186-)251-336-421(-479) micron, color hyaline, anatomical structure plectenchymatic, cell tangential dimension 3-6-9(-10) micron, cell radial dimension 3-5-7 micron, external cystidia absent. Sterile veins 50-160 micron, plectenchimatic.

Asci ans spores Morphology. Asci globose, major axis (53-)61-69-77(-90) micron, minor axis (26-)42-53-64(-68) micron, number of spores per ascus 1-4, irregularly clustered.

Spores subglobose or globose, major axis (20-)22-25-28(-37) micrometer lenght, minor axis (16-)19-21-23(-25) micrometer lenght, color yellow or pale brown, reticulation; ornamentation length (2-)3-4-5(-7) micron; mesh width (6-)8-10-12(-16) micron; number of meshes along the major axis (2-)3(-4).

Distribution. Habitat temperate; Putative plant host Quercus, or Corylus, or Ostrya, or Carpinus, or Tilia, or Populus, or Salix.

DNA polymorphism. ITS restriction pattern with EcoRI 600-650 bp; SphI 250-300 bp, or 300-350 bp; HincII less than 50 bp, or 550-600 bp; DNA sequence ID of the ITS1-5.8S-ITS2 regions TMAJ2509.

Mycorrhizae morphology. Mycorrhizae emanting hyphae absent, or rare; anatomy of emanating hyphae: clamps absent; color of emanating hyphae hyaline; color of very tip white, or whitish, or ochre, yellowish brown; color of older parts ochre, yellowish brown, or brown; cystidia absent, or present; needle like; color hyaline; intercalate swelling absent; ramification absent; anatomy of the mantle pseudoparenchymatus with epidermoid hyphal cells" like a puzzle".