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Ethylene Upregulates Auxin Biosynthesis in Arabidopsis Seedlings to Enhance Inhibition of Root Cell Elongation
Open accessAbstract
Ethylene represents an important regulatory signal for root development. Genetic studies in Arabidopsis thaliana have demonstrated that ethylene inhibition of root growth involves another hormone signal, auxin. This study investigated why auxin was required by ethylene to regulate root growth. We initially observed that ethylene positively controls auxin biosynthesis in the root apex. We subsequently demonstrated that ethylene-regulated root growth is dependent on (1) the transport of auxin from the root apex via the lateral root cap and (2) auxin responses occurring in multiple elongation zone tissues. Detailed growth studies revealed that the ability of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid to inhibit root cell elongation was significantly enhanced in the presence of auxin. We conclude that by upregulating auxin biosynthesis, ethylene facilitates its ability to inhibit root cell expansion.
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Cited by
Responses of root architecture development to low phosphorus availability: a review
Niu, Y. F., Chai, R. S., Jin, G. L., Wang, H., Tang, C. X., & Zhang, Y. S. (2013) · Annals of Botany · doi:10.1093/aob/mcs285 · Cited by 617
Rhizobacterial mediation of plant hormone status
Dodd, I. C., Zinovkina, N. Y., Safronova, V. I., & Belimov, A. A. (2010) · Annals of Applied Biology · doi:10.1111/j.1744-7348.2010.00439.x · Cited by 466
Wound-Induced Endogenous Jasmonates Stunt Plant Growth by Inhibiting Mitosis
Zhang, Y., & Turner, J. G. (2008) · PLoS ONE · doi:10.1371/journal.pone.0003699 · Cited by 330
Tsuchisaka, A., Yu, G., Jin, H., Alonso, J. M., Ecker, J. R., Zhang, X., Gao, S., & Theologis, A. (2009) · Genetics · doi:10.1534/genetics.109.107102 · Cited by 309
AUX/LAX family of auxin influx carriers—an overview
Swarup, R., & Péret, B. (2012) · Frontiers in Plant Science · doi:10.3389/fpls.2012.00225 · Cited by 306
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Metadata
- Authors
- Swarup, R., Perry, P., Hagenbeek, D., Van Der Straeten, D., Beemster, G. T. S., Sandberg, G., Bhalerao, R., Ljung, K., & Bennett, M. J.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2007-07-01
- Volume
- 19
- Issue
- 7
- Pages
- 2186-2196
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2082311696
- Cited by
- 594
- References
- 0
- FWCI
- 38.89
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Swarup, R., Perry, P., Hagenbeek, D., Van Der Straeten, D., Beemster, G. T. S., Sandberg, G., Bhalerao, R., Ljung, K., & Bennett, M. J. (2007). Ethylene Upregulates Auxin Biosynthesis in Arabidopsis Seedlings to Enhance Inhibition of Root Cell Elongation. The Plant Cell. https://doi.org/10.1105/tpc.107.052100
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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