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Am. J. Enol. Vitic. 48:1:80-84 (1997)
Copyright © 1997 by the American Society for Enology and Viticulture.
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Free, Conjugated, and Wall-Bound Polyamines in Various Organs of Fruiting Cuttings of Vitis vinifera L. cv. Cabernet Sauvignon

Laurence Geny 1, Michel Broquedis 1, Josette Martin-Tanguy 2, and Jacques Bouard 1

1 Institut de la Vigne de Bordeaux, Laboratoire des Sciences de la Vigne, Avenue des Facultés, Universit Bordeaux I, 33405 Talence, Cedex France
2 Laboratoire de phytoparasitologie, Station de Génétique et d'Am lioration des plantes, INRA, 21034 Dijon, France.

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.

Key words: fruiting cuttings, Cabernet Sauvignon, free polyamines, wall-bound and conjugated polyamines, putrescine, spermidine, diaminopropane

Submitted on August 31, 1995




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Copyright © 1997 by the American Society for Enology and Viticulture.