Abstract
Ethylene plays a vital role in the cell separation processes involved in leaf abscission, fruit softening and probably in the formation of large intercellular air spaces (Abeles, 1973). Increases in the rate of ethylene production precede abscission and tissue softening. Unscheduled abscission evoked by pathogenic invasion or wounding is also preceded by production of a massive amount of ethylene. An elevated concentration of ethylene in abscission zones or fruits has been shown to induce formation of enzymes which hydrolyze cell wall polysaccharides, leading to loss of cell-to-cell adhesion (Sexton and Roberts, 1982). Thus, ethylene production, on the one hand, is regulated developmentally and on the other hand, controlled by environmental stimuli imposed irregularly upon plants.
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© 1989 Springer-Verlag Berlin Heidelberg
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Imaseki, H., Nakajima, N., Nakagawa, N. (1989). Auxin- and Wound-Induced Expression of ACC Synthase. In: Osborne, D.J., Jackson, M.B. (eds) Cell Separation in Plants. NATO ASI Series, vol 35. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-74161-6_6
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DOI: https://doi.org/10.1007/978-3-642-74161-6_6
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