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An Arabidopsis Brassinosteroid-Dependent Mutant Is Blocked in Cell Elongation
Open accessAbstract
Cell elongation is a developmental process that is regulated by light and phytohormones and is of critical importance for plant growth. Mutants defective in their response to light and various hormones are often dwarfs. The dwarfed phenotype results because of a failure in normal cell elongation. Little is known, however, about the basis of dwarfism as a common element in these diverse signaling pathways and the nature of the cellular functions responsible for cell elongation. Here, we describe an Arabidopsis mutant, dwarf4 (dwf4), whose phenotype can be rescued with exogenously supplied brassinolide. dwf4 mutants display features of light-regulatory mutants, but the dwarfed phenotype is entirely and specifically brassinosteroid dependent; no other hormone can rescue dwf4 to a wild-type phenotype. Therefore, an intact brassinosteroid system is an absolute requirement for cell elongation.
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Cited by
Tanabe, S., Ashikari, M., Fujioka, S., Takatsuto, S., Yoshida, S., Yano, M., Yoshimura, A., Kitano, H., Matsuoka, M., Fujisawa, Y., et al. (2005) · The Plant Cell · doi:10.1105/tpc.104.024950 · Cited by 555
Strigolactone Acts Downstream of Auxin to Regulate Bud Outgrowth in Pea and Arabidopsis
Brewer, P. B., Dun, E. A., Ferguson, B. J., Rameau, C., & Beveridge, C. A. (2009) · PLANT PHYSIOLOGY · doi:10.1104/pp.108.134783 · Cited by 418
“In recent decades, many branching mutants have been isolated that have problems with auxin, cytokinin, or brassinosteroids, for example, and show highly pleiotropic phenotypes typical for these hormones (Lincoln et al., 1990; Azpiroz et al., 1998; Tantikanjana et al., 2001).”
BackgroundCharacterization of Brassinazole, a Triazole-Type Brassinosteroid Biosynthesis Inhibitor
Asami, T., Min, Y. K., Nagata, N., Yamagishi, K., Takatsuto, S., Fujioka, S., Murofushi, N., Yamaguchi, I., & Yoshida, S. (2000) · Plant Physiology · doi:10.1104/pp.123.1.93 · Cited by 396
Brassinosteroid-Regulated Gene Expression
Müssig, C., Fischer, S., & Altmann, T. (2002) · Plant Physiology · doi:10.1104/pp.011003 · Cited by 285
Molecular Biology of Weed Control
Gressel, J. (2002) · CRC Press eBooks · doi:10.1201/9781482264708 · Cited by 276
Metadata
- Authors
- Azpiroz, R., Wu, Y., LoCascio, J. C., & Feldmann, K. A.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 1998-02
- Volume
- 10
- Issue
- 2
- Pages
- 219-230
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2127170999
- Cited by
- 318
- References
- 0
- FWCI
- 23.08
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: An Arabidopsis Brassinosteroid-Dependent Mutant Is Blocked in Cell Elongation. https://app.cochat.ai/papers/10.1105/tpc.10.2.219
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- Azpiroz, R., Wu, Y., LoCascio, J. C., & Feldmann, K. A. (1998). An Arabidopsis Brassinosteroid-Dependent Mutant Is Blocked in Cell Elongation. The Plant Cell. https://doi.org/10.1105/tpc.10.2.219
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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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