Definizione di tuber

a plant tissue that conducts water and mineral salts from the roots to all other parts, provides mechanical support, and forms the wood of trees and shrubs. It is of two types (protoxylem and metaxylem), both of which are made up mainly of vessels and tracheids

the first aerial part of a plant to develop from a germinating seed

to transfer pollen from the anthers to the stigma of (a flower)

the soft fibrous tissue lining the inside of the rind in fruits such as the orange and grapefruit

the transport of minerals, sugars, etc, in solution within a plant