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Auxin Polar Transport Is Essential for the Establishment of Bilateral Symmetry during Early Plant Embryogenesis.
Open accessAbstract
We used an in vitro culture system to investigate the effects of three auxin polar transport inhibitors (9-hydroxyfluorene-9-carboxylic acid, trans-cinnamic acid, and 2,3,5-triiodobenzoic acid) on the development of early globular to heart-shaped stage embryos of Indian mustard (Brassica juncea) plants. Although the effective concentrations vary with the different inhibitors, all of them induced the formation of fused cotyledons in globular ([less than or equal to]60 [mu]m) but not heart-shaped embryos. Inhibitor-treated Brassica embryos phenocopy embryos of the Arabidopsis pin-formed mutant pin1-1, which has reduced auxin polar transport activity in inflorescence axes, as well as embryos of the Arabidopsis emb30 (gnom) mutant. These results indicate that the polar transport of auxin in early globular embryos is essential for the establishment of bilateral symmetry during plant embryogenesis. Based on these observations, we propose two possible models for the action of auxin during cotyledon formation.
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Cited by
Regulation of phyllotaxis by polar auxin transport
Reinhardt, D., Pesce, E.-R., Stieger, P., Mandel, T., Baltensperger, K., Bennett, M., Traas, J., Friml, J., & Kuhlemeier, C. (2003) · Nature · doi:10.1038/nature02081 · Cited by 1,523
Control of leaf vascular patterning by polar auxin transport
Scarpella, E., Marcos, D., Friml, J., & Berleth, T. (2006) · Genes & Development · doi:10.1101/gad.1402406 · Cited by 799
Prigge, M. J., Otsuga, D., Alonso, J. M., Ecker, J. R., Drews, G. N., & Clark, S. E. (2005) · The Plant Cell · doi:10.1105/tpc.104.026161 · Cited by 788
Aida, M., Ishida, T., & Tasaka, M. (1999) · Development · doi:10.1242/dev.126.8.1563 · Cited by 557
Przemeck, G. H., Mattsson, J., Hardtke, C., Sung, Z. R., & Berleth, T. (1996) · Planta · doi:10.1007/bf00208313 · Cited by 503
Metadata
- Authors
- Liu, C., Xu, Z., & Chua, N. H.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 1993-06-01
- Volume
- 5
- Issue
- 6
- Pages
- 621-630
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2117570421
- Cited by
- 501
- References
- 0
- FWCI
- 26.12
- Type
- journal article
- Language
- en
- Open access
- green
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- Liu, C., Xu, Z., & Chua, N. H. (1993). Auxin Polar Transport Is Essential for the Establishment of Bilateral Symmetry during Early Plant Embryogenesis. The Plant Cell. https://doi.org/10.1105/tpc.5.6.621
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