The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.
REPRESSION OF SHOOT GROWTH, a bZIP Transcriptional Activator, Regulates Cell Elongation by Controlling the Level of Gibberellins
Open accessAbstract
Cell expansion, a developmental process regulated by both endogenous programs and environmental stimuli, is critically important for plant growth. Here, we report the isolation and characterization of RSG (for repression of shoot growth), a transcriptional activator with a basic leucine zipper (bZIP) domain. To examine the role of RSG in plant development, we generated transgenic tobacco plants expressing a dominant-negative form of RSG, which repressed the activity of full-length RSG. In transgenic plants, this expression severely inhibited stem internode growth, specifically cell elongation. These plants also had less endogenous amounts of the major active gibberellin (GA) in tobacco, GA(1). Applying GAs restored the dwarf phenotypes of transgenic tobacco plants that expressed the dominant-negative form of RSG. To investigate the function of RSG in the regulation of the endogenous amounts of GAs, we identified a target for RSG. RSG bound and activated the promoter of Arabidopsis GA3, one of the genes encoding enzymes involved in GA biosynthesis. Moreover, the dominant-negative form of RSG decreased expression of the GA3 homolog in transgenic tobacco plants. Our results show that RSG, a bZIP transcriptional activator, regulates the morphology of plants by controlling the endogenous amounts of GAs.
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Cited by
MYB transcription factors in Arabidopsis
Dubos, C., Stracke, R., Grotewold, E., Weisshaar, B., Martin, C., & Lepiniec, L. (2010) · Trends in Plant Science · doi:10.1016/j.tplants.2010.06.005 · Cited by 4,865
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Gibberellin biosynthesis and its regulation
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Assunção, A. G. L., Herrero, E., Lin, Y.-F., Huettel, B., Talukdar, S., Smaczniak, C., Immink, R. G. H., van Eldik, M., Fiers, M., Schat, H., et al. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1004788107 · Cited by 379
Metadata
- Authors
- Fukazawa, J., Sakai, T., Ishida, S., Yamaguchi, I., Kamiya, Y., & Takahashi, Y.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2000-06
- Volume
- 12
- Issue
- 6
- Pages
- 901-915
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2146553913
- Cited by
- 257
- References
- 44
- FWCI
- 13.62
- Type
- journal article
- Language
- en
- Open access
- green
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- Fukazawa, J., Sakai, T., Ishida, S., Yamaguchi, I., Kamiya, Y., & Takahashi, Y. (2000). REPRESSION OF SHOOT GROWTH, a bZIP Transcriptional Activator, Regulates Cell Elongation by Controlling the Level of Gibberellins. The Plant Cell. https://doi.org/10.1105/tpc.12.6.901
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