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The ethylene is the hormone involved in the fruit ripening. During the process of ripening the ethylene hormone triggers the genes that in turns make the enzymes that cause the ripening. The enzymes such as the hydrolases, kinase, amylase, hydrolase, pectinase etc. are produced. The hydrolase enzyme helps in the break down the chemicals inside the fruits and the amylase helps to accelerate hydrolysis of starch into sugar. The pectinase enzyme catalyses’ the digestion of pectin all these enzymes together causes the developmental changes in the fruit ripening. When the level of the ethylene are especially high in the separating tissues which will result in the abscission of petals and leaves.

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