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Abnormal plant development and down-regulation of phenylpropanoid biosynthesis in transgenic tobacco containing a heterologous phenylalanine ammonia-lyase gene.
Open accessAbstract
Biosynthesis of phenylpropanoid natural products in tobacco was perturbed by introduction of a heterologous (bean) phenylalanine ammonia-lyase (PAL; L-phenylalanine ammonia-lyase, EC 4.3.1.5) gene, modified by inclusion of cauliflower mosaic virus 35S enhancer sequences in its promoter. These transgenic plants can exhibit a series of unusual phenotypes including localized fluorescent lesions, altered leaf shape and texture, reduced signification in xylem, stunted growth, reduced pollen viability, and altered flower morphology and pigmentation. Genetic analysis of a transformant with severe symptoms showed that symptom development was inherited as a single, partially dominant trait and cosegregated with reduced levels of PAL activity and soluble phenylpropanoid products. Accumulation of transcripts encoded by the endogenous tobacco PAL genes was suppressed. We conclude that the transgene disrupts PAL regulation and that some of the phenotypes reflect interference with putative signals dependent on phenylpropanoid biosynthesis.
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Cites
Primer-Directed Enzymatic Amplification of DNA with a Thermostable DNA Polymerase
Saiki, R. K., Gelfand, D. H., Stoffel, S., Scharf, S. J., Higuchi, R., Horn, G. T., Mullis, K. B., & Erlich, H. A. (1988) · Science · doi:10.1126/science.2448875 · Cited by 17,719
Cited by
Boerjan, W., Ralph, J., & Baucher, M. (2003) · Annual Review of Plant Biology · doi:10.1146/annurev.arplant.54.031902.134938 · Cited by 4,504
Salicylic Acid and its Function in Plant ImmunityF
An, C., & Mou, Z. (2011) · Journal of Integrative Plant Biology · doi:10.1111/j.1744-7909.2011.01043.x · Cited by 517
Kim, D. S., & Hwang, B. K. (2014) · Journal of Experimental Botany · doi:10.1093/jxb/eru109 · Cited by 470
Mayer, M. J., Narbad, A., Parr, A. J., Parker, M. L., Walton, N. J., Mellon, F. A., & Michael, A. J. (2001) · The Plant Cell · doi:10.1105/tpc.010063 · Cited by 65
Metadata
- Authors
- Elkind, Y., Edwards, R., Mavandad, M., Hedrick, S. A., Ribak, O., Dixon, R. A., & Lamb, C. J.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1990-11
- Volume
- 87
- Issue
- 22
- Pages
- 9057-9061
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2079616836
- Cited by
- 315
- References
- 1
- FWCI
- 2.57
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Abnormal plant development and down-regulation of phenylpropanoid biosynthesis in transgenic tobacco containing a heterologous phenylalanine ammonia-lyase gene. https://app.cochat.ai/papers/10.1073/pnas.87.22.9057
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- Elkind, Y., Edwards, R., Mavandad, M., Hedrick, S. A., Ribak, O., Dixon, R. A., & Lamb, C. J. (1990). Abnormal plant development and down-regulation of phenylpropanoid biosynthesis in transgenic tobacco containing a heterologous phenylalanine ammonia-lyase gene. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.87.22.9057
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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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