BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Ethylene is a simple gaseous plant growth regulator (PGR). It is produced in large amounts by tissues undergoing senescence and ripening fruits. It was observed that unripe bananas ripened faster when stored with ripe bananas. Later, the substance promoting the ripening was found to be ethylene.

Detailed explanation-2: -Abscisic acid (ABA) and ethylene are the major regulators of ripening and senescence in both dry and fleshy fruits, as demonstrated by numerous ripening-defective mutants, effects of exogenous hormone application, and transcriptome analyses.

Detailed explanation-3: -Ethylene is a gaseous plant hormone that plays an important role in inducing the ripening process for many fruits, together with other hormones and signals. An unripe fruit generally has low levels of ethylene. As the fruit matures, ethylene is produced as a signal to induce fruit ripening.

Detailed explanation-4: -Ethylene is a group of plant growth regulators which are widely used for ripening fruits and for the production of more flowers and fruits.