origins of the truffle
It is common to say that the truffle is an underground mushroom,
but more exactly it is the fruit of the mycelium.
The classification of mushrooms, the truffle is in the category
of the ascomycetes hypoges.
because the spores are enclosed in small pockets (asques) and hypogee
because it is underground.
In form, the truffle is generally round, but can also be very irregular
in shape, depending upon the terrain.
The biological cycle of the truffle is very particular; like all
mushrooms the truffle does not carry out photosynthesis. It is therefore
restricted to living a symbiotic life, connected to another life
form. This partnership generally occurs with trees.
It is thus thanks to the mycelium, its vegetative system that the
truffle will look for a partner tree.
From the meeting of the radicelle of the host tree and the mycelium,
is born the indispensable product: the Mycorhize. Thanks to the
mycorhize, the truffle can take the substances it needs from the
tree, without which it would not survive. And this is what is called
the mycorhizienne symbiosis.
The mycorhisation either occurs naturally because of the presence
of the truffle spores in the earth, or from planting oak trees,
already mychorised. Once the tree is planted it takes ten years
for the truffle spores to colonize and for the first truffle to
It is the mycelium, from the mycorhizes, which gives birth to little
truffles. In fact in during the months of May and June, the mycelium
retracts to form a pellet called the primordial. If they do not
die, these little truffles will evolve and become independent from
the mother tree in July.
During the summer months, the truffle grows from several grams in
size to its normal size of 30-50 grams. The color and the smell
do not evolve until just before harvesting.
Truffle of August
But things are not so simple, and life cycle of a truffle requires
the interdependence of three elements, which are the earth, the
climate, and the host tree.