The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Cytokinins Act Directly on Lateral Root Founder Cells to Inhibit Root Initiation
Open accessAbstract
In Arabidopsis thaliana, lateral roots are formed from root pericycle cells adjacent to the xylem poles. Lateral root development is regulated antagonistically by the plant hormones auxin and cytokinin. While a great deal is known about how auxin promotes lateral root development, the mechanism of cytokinin repression is still unclear. Elevating cytokinin levels was observed to disrupt lateral root initiation and the regular pattern of divisions that characterizes lateral root development in Arabidopsis. To identify the stage of lateral root development that is sensitive to cytokinins, we targeted the expression of the Agrobacterium tumefaciens cytokinin biosynthesis enzyme isopentenyltransferase to either xylem-pole pericycle cells or young lateral root primordia using GAL4-GFP enhancer trap lines. Transactivation experiments revealed that xylem-pole pericycle cells are sensitive to cytokinins, whereas young lateral root primordia are not. This effect is physiologically significant because transactivation of the Arabidopsis cytokinin degrading enzyme cytokinin oxidase 1 in lateral root founder cells results in increased lateral root formation. We observed that cytokinins perturb the expression of PIN genes in lateral root founder cells and prevent the formation of an auxin gradient that is required to pattern lateral root primordia.
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Faiss, M., Zalubìlová, J., Strnad, M., & Schmülling, T. (1997) · The Plant Journal · doi:10.1046/j.1365-313x.1997.12020401.x · Cited by 305
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Recent advances and emerging trends in plant hormone signalling
Santner, A., & Estelle, M. (2009) · Nature · doi:10.1038/nature08122 · Cited by 960
Adventitious Roots and Lateral Roots: Similarities and Differences
Bellini, C., Pacurar, D. I., & Perrone, I. (2014) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-050213-035645 · Cited by 624
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
The roots of a new green revolution
Herder, G. D., Van Isterdael, G., Beeckman, T., & De Smet, I. (2010) · Trends in Plant Science · doi:10.1016/j.tplants.2010.08.009 · Cited by 508
Self-citationRoot system architecture: insights from Arabidopsis and cereal crops
Smith, S., & De Smet, I. (2012) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2011.0234 · Cited by 439
Metadata
- Authors
- Laplaze, L., Benkova, E., Casimiro, I., Maes, L., Vanneste, S., Swarup, R., Weijers, D., Calvo, V., Parizot, B., Herrera-Rodriguez, M. B., Offringa, R., Graham, N., Doumas, P., Friml, J., Bogusz, D., Beeckman, T., & Bennett, M.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2007-12-01
- Volume
- 19
- Issue
- 12
- Pages
- 3889-3900
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2120560407
- Cited by
- 623
- References
- 1
- FWCI
- 25.03
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Laplaze, L., Benkova, E., Casimiro, I., Maes, L., Vanneste, S., Swarup, R., Weijers, D., Calvo, V., Parizot, B., Herrera-Rodriguez, M. B., Offringa, R., Graham, N., Doumas, P., Friml, J., Bogusz, D., Beeckman, T., & Bennett, M. (2008). Cytokinins Act Directly on Lateral Root Founder Cells to Inhibit Root Initiation. The Plant Cell. https://doi.org/10.1105/tpc.107.055863
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