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Constitutive expression of a fruit phytoene synthase gene in transgenic tomatoes causes dwarfism by redirecting metabolites from the gibberellin pathway
Open accessAbstract
Tomato plants transformed with a copy of the fruit‐expressed phytoene synthase cDNA under control of the CaMV 35S promoter showed ectopic production of carotenoids. High expressers were reduced in stature. The dwarf character was inherited with an inverse relationship between expression of phytoene synthase and plant height. Severely affected plants also showed reduced chlorophyll content in young leaves. These dwarfs showed a 30‐fold reduction in levels of gibberellin A 1 (GA 1) and growth was partially restored by treatment with exogenous GA 3. Qualitative and quantitative changes in carotenoids were also found. It is proposed that the dwarf phenotype results from the over‐production of phytoene synthase, which converts geranylgeranyl diphosphate to phytoene and thereby diverts this intermediate away from the gibberellin (GA) and phytol biosynthetic pathways.
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Citations
Cited by
Estévez, J. M., Cantero, A., Reindl, A., Reichler, S., & León, P. (2001) · Journal of Biological Chemistry · doi:10.1074/jbc.m100854200 · Cited by 668
Carotenoids and their cleavage products: Biosynthesis and functions
Walter, M. H., & Strack, D. (2011) · Natural Product Reports · doi:10.1039/c0np00036a · Cited by 580
Terpenoid Metabolism in Wild-Type and Transgenic Arabidopsis Plants[W]
Aharoni, A., Giri, A. P., Deuerlein, S., Griepink, F., de Kogel, W.-J., Verstappen, F. W. A., Verhoeven, H. A., Jongsma, M. A., Schwab, W., & Bouwmeester, H. J. (2003) · The Plant Cell · doi:10.1105/tpc.016253 · Cited by 543
In Posidonia oceanica cadmium induces changes in DNA methylation and chromatin patterning
Greco, M., Chiappetta, A., Bruno, L., & Bitonti, M. B. (2012) · Journal of Experimental Botany · doi:10.1093/jxb/err313 · Cited by 538
Biogenesis, molecular regulation and function of plant isoprenoids.
Bouvier, F., Rahier, A., & Camara, B. (2005) · Progress in Lipid Research · doi:10.1016/j.plipres.2005.09.003 · Cited by 498
Metadata
- Authors
- Fray, R. G., Wallace, A., Fraser, P. D., Valero, D., Hedden, P., Bramley, P. M., & Grierson, D.
- Venue
- The Plant Journal
- Publisher
- Wiley
- Published
- 1995-11
- Volume
- 8
- Issue
- 5
- Pages
- 693-701
- ISSN
- 0960-7412 (ISSN-L)
- 1365-313X
- OpenAlex
- W1969370791
- Cited by
- 345
- References
- 0
- FWCI
- 1.89
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Constitutive expression of a fruit phytoene synthase gene in transgenic tomatoes causes dwarfism by redirecting metabolites from the gibberellin pathway. https://app.cochat.ai/papers/10.1046/j.1365-313x.1995.08050693.x
- The paper
- Fray, R. G., Wallace, A., Fraser, P. D., Valero, D., Hedden, P., Bramley, P. M., & Grierson, D. (1995). Constitutive expression of a fruit phytoene synthase gene in transgenic tomatoes causes dwarfism by redirecting metabolites from the gibberellin pathway. The Plant Journal. https://doi.org/10.1046/j.1365-313x.1995.08050693.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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