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자료유형
학술저널
저자정보
저널정보
한국원예학회 HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY HORTICULTURE ENVIRONMENT and BIOTECHNOLOGY Vol.47 No.2
발행연도
2006.4
수록면
55 - 58 (4page)

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In order to determine if lysophosphatidylethanolamine (LPE) has a contrasting effect in mature green and red tomato fruit, ethylene production, 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase activity, and respiration in pericarp tissues of tomato fruit at mature green and red ripe stages were assessed. For this purpose excised pericarp tissues were incubated in a buffer solution containing LPE derived from egg yolk lecithin. In outer pericarp tissues from mature green tomato fruit, LPE increased ethylene production and ACC oxidase activity. Respiration in these tissues was also slightly increased. In pericarp tissues of red tomatoes, however, LPE decreased ethylene production and ACC oxidase activity. These results are consistent with the observed influence of LPE on stimulation of fruit ripening while prolonging shelf life of the fruits at the same time. Furthermore, these results provide evidence that the influence of LPE on fruit tissues is dependent on the stage of ripening. These results show that in a mature fruit (ready to ripen) LPE can stimulate ripening, while in a ripened fruit LPE can inhibit ethylene production and thereby prolong shelf life and maintain fruit firmness. Furthermore, these responses to LPE involve the modulation of ACC oxidase activity.

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Abstract
Introduction
Materials and Methods
Results and Discussion
Literature Cited

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