RT Journal Article SR Electronic T1 Free, Conjugated, and Wall-Bound Polyamines in Various Organs of Fruiting Cuttings of Vitis vinifera L. cv. Cabernet Sauvignon JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 80 OP 84 DO 10.5344/ajev.1997.48.1.80 VO 48 IS 1 A1 Laurence Geny A1 Michel Broquedis A1 Josette Martin-Tanguy A1 Jacques Bouard YR 1997 UL http://www.ajevonline.org/content/48/1/80.abstract AB Free polyamines, conjugated polyamines, and wall-bound polyamines were analyzed in several organs of the fruiting cuttings of Cabernet Sauvignon at different stages of development. Polyamine composition differed according to tissue and stage of development with wall-bound putrescine predominating in flowers, rachises, stems, and roots. Putrescine conjugates accumulated only in flowers. These polyamines (except wall-bound putrescine in rachises) quickly and dramatically decreased after anthesis, while conjugated diaminopropane accumulated in berries and rachises. Wall-bound diaminopropane of development predominated in shoot stems at anthesis. Polyamines were always found at low levels in all organs at the stage of fruit ripening.