Abstract
The plant hormone gibberellin (GA) plays an essential role in a wide range of developmental processes including petal growth and pigmentation (Huttly, Phillips 1995). We have previously shown that GA is essential for Petunia hybrida flower development (Weiss, Halevy 1989). When detached petunia corollas were grown in vitro in a sucrose medium, they elongated and became pigmented only in the presence of GA3 (Weiss et al. 1992). Analysis of endogenous GAs indicated the presence of biologically active GAs, including GA1 and GA4, in the anthers and corollas at the stages of rapid elongation and anthocyanin accumulation (Weiss et al. 1995). The effect of the hormone on corolla pigmentation was due to the activation of the anthocyanin biosynthetic genes such as chalcone synthase (chs) (Weiss et al. 1992). However, the effect of the hormone is not exclusive to these genes; it also promotes the expression of genes from general metabolic pathways, such as triosephosphate isomerase (tpi) (Ben-Nissan, Weiss 1995). Recently, we have cloned (Ben-Nissan, Weiss 1996) the petunia homologue (gip) of the tomato gast1 (Shi et al. 1992). Gip is expressed in corollas during cell elongation and is induced specifically by GA3. Expression analysis of the gene provided evidence supporting its possible role in GA-induced corolla elongation (Ben-Nissan, Weiss 1996).
Chapter PDF
Similar content being viewed by others
Keywords
- Okadaic Acid
- Anthocyanin Accumulation
- Triosephosphate Isomerase
- Aleurone Cell
- Anthocyanin Biosynthetic Gene
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
References
Ben-Nissan G, Weiss D (1995) J. Plant Physiol. 147, 58–62.
Ben-Nissan G, Weiss D (1996) Plant Mol. Biol. 32, 1067–1074.
Bowler C et al. (1994) Cell 77, 73–81.
Christie JM, Jenkins GI (1996) Plant Cell 8, 1555–1567.
Gilroy S (1996) Plant Cell 8, 2193–2209.
Huttly AK, Phillips AL (1995) Physiol. Plant. 95, 310–317.
Jacobsen SE et al. (1996) Proc. Natl. Acad. Sci. USA 93, 9292–9296.
Knight H et al. (1996) Plant Cell 8, 489–503.
Kuo A et al. (1996) Plant Cell 8, 259–269.
Shi L et al. (1992) Plant J. 2, 153–159.
Swain SM, Olszewski NE (1996) Plant Physiol. 112, 11–17.
Tamaoki T (1991) Methods in Enzymology, pp. 340–347, Academic Press, San Diego, CA.
Weiss D, Halevy AH (1989) Planta 179, 89–96.
Weiss D et al. (1992) Plant Physiol. 98, 191–197.
Weiss D et al. (1995) Plant Physiol. 107, 695–702
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Leitner-Dagan, Y., Izhaki, A., Ben-Nissan, G., Borochov, A., Weiss, D. (1999). GA-induced gene expression in petunia flowers. In: Altman, A., Ziv, M., Izhar, S. (eds) Plant Biotechnology and In Vitro Biology in the 21st Century. Current Plant Science and Biotechnology in Agriculture, vol 36. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4661-6_39
Download citation
DOI: https://doi.org/10.1007/978-94-011-4661-6_39
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-5966-4
Online ISBN: 978-94-011-4661-6
eBook Packages: Springer Book Archive