How do pears produce ethylene?

Pears produce ethylene naturally as a plant hormone, particularly during the ripening process. Ethylene is synthesized in the fruit from the amino acid methionine through a series of enzymatic reactions. This hormone plays a crucial role in regulating various aspects of fruit development, including ripening, softening, and flavor enhancement. As pears ripen, the production of ethylene increases, which further accelerates the ripening process in both the fruit itself and surrounding fruits.