Molecular Genetic Approaches to Elucidating the Role of Hormones in Plant Development
Physiological studies conducted over the last half century have established a role for hormones in virtually every aspect of plant development. Most of the pioneering work on hormone action used approaches that involve exogenous application of a hormone or inhibitor. There are severe limitations to what we can learn in this manner. Exogenous application of any biological material is subject to limitations of uptake, transport, sequestration and metabolism. Further, it is difficult to quantitate the amount of active material within the target tissue. For these reasons, it has been generally difficult to establish a direct relationship between a hormone and a particular developmental process.
KeywordsTransgenic Plant Ethylene Production Apical Dominance Crown Gall Ethylene Synthesis
Unable to display preview. Download preview PDF.
- Guzman, P., Ecker, J.R. (1990) Exploiting the triple response of Arabidopsis to identify ethylene-related mutants.Google Scholar
- Klee, H.J., Hayford, M.B., Kretzmer, K.A., Barry, G.F., Kishore, G.M. 1991. Control of ethylene synthesis by expression of a bacterial enzyme in transgenic tomato plants. Pl. Cell 3:1187–1193.Google Scholar
- Medford, J.I., Horgan, R., El-Sawi, Z., Klee, H.J. 1989. Alterations of endogenous cytokinins in transgenic plants using a chimeric isopentenyl transferase gene. T. Pl. Cell 4:403–413.Google Scholar
- Skoog, F., Miller, C.O. 1957. Chemical regulation of growth and organ formation in plant tissues cultured in vitro. Symp. Soc. Exptl. Biol. 11:188–231.Google Scholar