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Ethylene Regulates Arabidopsis Development via the Modulation of DELLA Protein Growth Repressor Function
Open accessAbstract
Phytohormones regulate plant development via a poorly understood signal response network. Here, we show that the phytohormone ethylene regulates plant development at least in part via alteration of the properties of DELLA protein nuclear growth repressors, a family of proteins first identified as gibberellin (GA) signaling components. This conclusion is based on the following experimental observations. First, ethylene inhibited Arabidopsis root growth in a DELLA-dependent manner. Second, ethylene delayed the GA-induced disappearance of the DELLA protein repressor of ga1-3 from root cell nuclei via a constitutive triple response-dependent signaling pathway. Third, the ethylene-promoted "apical hook" structure of etiolated seedling hypocotyls was dependent on the relief of DELLA-mediated growth restraint. Ethylene, auxin, and GA responses now can be attributed to effects on DELLA function, suggesting that DELLA plays a key integrative role in the phytohormone signal response network.
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Cited by
Recent advances and emerging trends in plant hormone signalling
Santner, A., & Estelle, M. (2009) · Nature · doi:10.1038/nature08122 · Cited by 960
Yang, D.-L., Yao, J., Mei, C.-S., Tong, X.-H., Zeng, L.-J., Li, Q., Xiao, L.-T., Sun, T.-P., Li, J., Deng, X.-W., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1201616109 · Cited by 873
Franklin, K. A. (2008) · New Phytologist · doi:10.1111/j.1469-8137.2008.02507.x · Cited by 801
Global Analysis of DELLA Direct Targets in Early Gibberellin Signaling in Arabidopsis
Zentella, R., Zhang, Z.-L., Park, M., Thomas, S. G., Endo, A., Murase, K., Fleet, C. M., Jikumaru, Y., Nambara, E., Kamiya, Y., et al. (2007) · The Plant Cell · doi:10.1105/tpc.107.054999 · Cited by 678
The Ubiquitin-Proteasome Pathway and Plant Development
Moon, J., Parry, G., & Estelle, M. (2004) · The Plant Cell · doi:10.1105/tpc.104.161220 · Cited by 586
Metadata
- Authors
- Achard, P., Vriezen, W. H., Van Der Straeten, D., & Harberd, N. P.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2003-11-13
- Volume
- 15
- Issue
- 12
- Pages
- 2816-2825
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2023608425
- Cited by
- 454
- References
- 0
- FWCI
- 27.15
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Achard, P., Vriezen, W. H., Van Der Straeten, D., & Harberd, N. P. (2003). Ethylene Regulates Arabidopsis Development via the Modulation of DELLA Protein Growth Repressor Function. The Plant Cell. https://doi.org/10.1105/tpc.015685
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