אסיף מאגר המחקר החקלאי

Proanthocyanidins production in tissue culture: Regulation of dihydroflavonol reductase promoter-gus-intron fusion in grapes

Year:

2000

Source of publication :

Authors :

Volume :

528

Co-Authors:

Gollop, R., Department of Fruit Tree Breeding, Volcani Center, ARO, P.O.B. 6, Bet-Dagan 50250, Israel
Eshdat, Y., Department of Fruit Tree Breeding, Volcani Center, ARO, P.O.B. 6, Bet-Dagan 50250, Israel
Perl, A., Department of Fruit Tree Breeding, Volcani Center, ARO, P.O.B. 6, Bet-Dagan 50250, Israel
Tsolova, V., Institute of Viticulture and Enology and Molecular Genetics, P.O.B. 1164, 5800-Pleven, Bulgaria

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Abstract:

The dihydroflavonol reductase (DFR) promoter from Vitis vinifera cv. Red Globe was cloned, and fused to GUS-Intron as a reporter gene. The fusion construct was transformed to grape cell suspension of Vitis vinifera cv. Gamay Red and to embryogenic cell line of the cultivar Superior Seedless. Positive transformants expressing the DFR promoter-GUS-Intron gene, as analyzed by GUS activity, were obtained from both cultivars. Growth culture conditions for induction of procyanidin production were established. Procyanidin production was induced in callus derived from the cultivar Gamay Red by illumination of 40 (|J.E m-2 sec-1, in the presence of kinetin and (3-Naphthaleneacetic acid. An optimal concentration of riboflavin, casein hydrolyzate and sucrose was determined for procyanidin production.

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