Jean-Claude Caissard & Sylvie Baudino

Jean-Claude Caissard & Sylvie Baudino
Laboratoire de Biotechnologies Végétales appliquées aux Plantes Aromatiques et Médicinales (EA 3061)
Université Jean Monnet
23 rue du Dr Michelon
42023 Saint-Etienne Cedex 2
Garden roses
Roses for perfumes
Breeding for diversity
of scents
Breeding for yield
increase
Cut roses
Breeding for long vase
life AND scent
BUT SCENT IS A COMPLEX TRAIT
Understanding the biosynthesis of rose
scent and its regulation
2-phenylethyl-β-Dglucopyranoside
OH
Regulation of an hypothetic βglucosidase is sufficient to explain
the 2-phenylethanol phenology
during blooming
RhPAAS
COOH
NH2
OH
O
RoPAR
O
2-phenylacetaldehyde
synthase
L-phenylalanine
OH
2-phenylacetaldehyde
reductase
2-phenylacetaldehyde
2-phenylethanol
O
RhAAT
phenylpyruvate
alcohol
acetyltransferase
COOH
RdAAAT3
OH
O
β-glucosidase/glycosyl transferase
Alleles of PAAS can explain
variations in 2-phenylethanol
quantity
O
2-phenylethyl
acetate
O