The rot or putrefaction indicates, in the field of the Biologie, the Décomposition of an organic compound under the action of biological factors (Champignon S Bactérie S) completely modifying its aspect and its composition. It is at the base of the constitution of the Humus.

In Phytopathology, the rot makes following a cryptogamic or bacterial Maladie of the plants. The terms of “gray Pourriture” indicate an attack of microscopic mushroom Botrytis cinerea on a broad range of cultures: fruits, vegetables, plants of ornament and on the Bunch S of Vine.

The name of “noble Pourriture” indicates a beneficial effect of the presence of Botrytis cinerea , which involves, in a small number of Terroir S, the appearance of Arôme S very appreciated in liqueur-like wines.