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Modification of Brassica seed oil by antisense expression of a stearoyl-acyl carrier protein desaturase gene.
Open accessAbstract
Molecular gene transfer techniques have been used to engineer the fatty acid composition of Brassica rapa and Brassica napus (canola) oil. Stearoyl-acyl carrier protein (stearoyl-ACP) desaturase (EC 1.14.99.6) catalyzes the first desaturation step in seed oil biosynthesis, converting stearoyl-ACP to oleoyl-ACP. Seed-specific antisense gene constructs of B. rapa stearoyl-ACP desaturase were used to reduce the protein concentration and enzyme activity of stearoyl-ACP desaturase in developing rapeseed embryos during storage lipid biosynthesis. The resulting transgenic plants showed dramatically increased stearate levels in the seeds. A continuous distribution of stearate levels from 2% to 40% was observed in seeds of a transgenic B. napus plant, illustrating the potential to engineer specialized seed oil compositions.
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Citations
Cited by
CHILLING SENSITIVITY IN PLANTS AND CYANOBACTERIA: The Crucial Contribution of Membrane Lipids
Nishida, I., & Murata, N. (1996) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.47.1.541 · Cited by 641
Fatty Acid Biosynthesis Redirected to Medium Chains in Transgenic Oilseed Plants
Voelker, T. A., Worrell, A. C., Anderson, L., Bleibaum, J., Fan, C., Hawkins, D. J., Radke, S. E., & Davies, H. M. (1992) · Science · doi:10.1126/science.1621095 · Cited by 428
Self-citationDGAT2 Is a New Diacylglycerol Acyltransferase Gene Family
Lardizabal, K. D., Mai, J. T., Wagner, N. W., Wyrick, A., Voelker, T., & Hawkins, D. J. (2001) · Journal of Biological Chemistry · doi:10.1074/jbc.m106168200 · Cited by 371
Murata, N., & Wada, H. (1995) · Biochemical Journal · doi:10.1042/bj3080001 · Cited by 360
Metadata
- Authors
- Knutzon, D. S., Thompson, G. A., Radke, S. E., Johnson, W. B., Knauf, V. C., & Kridl, J. C.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 1992-04
- Volume
- 89
- Issue
- 7
- Pages
- 2624-2628
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2080139237
- Cited by
- 400
- References
- 0
- FWCI
- 11.15
- Type
- journal article
- Language
- en
- Open access
- green
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- Knutzon, D. S., Thompson, G. A., Radke, S. E., Johnson, W. B., Knauf, V. C., & Kridl, J. C. (1992). Modification of Brassica seed oil by antisense expression of a stearoyl-acyl carrier protein desaturase gene. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.89.7.2624
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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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