ISHS Acta Horticulturae 379: International Symposium on Quality of Fruit and Vegetables: Influence of Pre- and Post- Harvest Factors and Technology
ROLE OF ALCOHOL DEHYDROGENASE ON RIPENING OF ETHANOL-TREATED TOMATO AND KIWIFRUIT |
| Authors: | R. Massantini, E. Gobattoni, R. Botondi, F. Mencarelli |
| Keywords: | ADH, ethanol, tomato, Kiwifruit |
| Abstract:
Ethanol vapour treatments for 8 hours of tomato fruit discs stimulated greatly the ADH (alcohol dehydrogenase) activity and inhibited ethylene biosynthesis. When 10 mM 4-methyl pyrazole (4-MP), an inhibitor of ADH, was applied, ADH activity was halved in ethanol-treated discs and completely inhibited in water-treated tissues and ethylene was also inhibited. 5 mM AVG (aminoethoxyvinylglycine) reduced ethylene evolution but did not affect ADH activity. In kiwifruit discs, ADH was only detectable after ethanol treatments and its activity was inhibited by 4-MP and AVG. ACC (1-aminocyclopropane-1-carboxylic acid) and etephon stimulated ethylene but not ADH activity. Role and interation of ADH with ethylene are discussed in this work. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
