On '1-Aminocyclopropanecarboxylate synthase, a key enzyme in ethylene biosynthesis' by Yeong-Biau Yu, Douglas O.Adams and Shang Fa Yang

The significance of the paper by Yu et al. (1979) is discussed in the context of the long history of ethylene as a plant growth regulator. By launching the era of molecular analysis and biotechnological exploitation, this research made a vital contribution to crop production and quality.