The invention concerns the use of a DNA sequence coding for a polyol
carrier, in plants and fungi, such as polyols having a main chain
containing 5 to 8 carbon atoms, in particular 5 to 7 carbon atoms, more
preferably 6 carbon atoms, the polyols being advantageously selected
among mannitol, sorbitol, dulcitol, galactitol, inositol, myo-inositol,
ribitol and xylitol, and being preferably mannitol, for preparing
transgenic plants.
