T. Boller, H. Kende
Jul 1, 1980
Citations
3
Influential Citations
156
Citations
Quality indicators
Journal
Nature
Abstract
Ethylene is produced by plants at specific stages of their life cycle and is involved in the regulation of many developmental processes, such as fruit ripening, flower fading, leaf abscission, growth in aquatic plants and initiation of flowering in bromeliads1,2. Ethylene is also formed when plants are subjected to stress by, for example, wounding, noxious chemicals, drought or waterlogging1–3. In both cases the biosynthetic pathway begins with methionine 1–5. It proceeds to ethylene by way of S-adenosylmethionine (SAM) and 1-aminocyclopropane-1-carboxylic acid (ACC), a recently discovered intermediate6,7, in ripening fruit7,8 and auxin-treated pea stem sections9,10. We now report that wound-induced ethylene synthesis also proceeds by way of ACC and that it is regulated at the level of the ACC-forming enzyme (ACC synthase). Wounding of pericarp tissue of tomato fruit (Lycopersicon esculentum Mill.) results in rapid enhancement of the activity of ACC synthase and, consequently, in a greatly increased rate of ACC synthesis.