The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Cytokinins are central regulators of cambial activity
Open accessAbstract
The roots and stems of dicotyledonous plants thicken by the cell proliferation in the cambium. Cambial proliferation changes in response to environmental factors; however, the molecular mechanisms that regulate cambial activity are largely unknown. The quadruple Arabidopsis thaliana mutant atipt1;3;5;7 , in which 4 genes encoding cytokinin biosynthetic isopentenyltransferases are disrupted by T-DNA insertion, was unable to form cambium and showed reduced thickening of the root and stem. The atipt3 single mutant, which has moderately decreased levels of cytokinins, exhibited decreased root thickening without any other recognizable morphological changes. Addition of exogenously supplied cytokinins to atipt1;3;5;7 reactivated the cambium in a dose-dependent manner. When an atipt1;3;5;7 shoot scion was grafted onto WT root stock, both the root and shoot grew normally and trans -zeatin-type ( t Z-type) cytokinins in the shoot were restored to WT levels, but isopentenyladenine-type cytokinins in the shoot remained unchanged. Conversely, when a WT shoot was grafted onto an atipt1;3;5;7 root, both the root and shoot grew normally and isopentenyladenine-type cytokinins in the root were restored to WT levels, but t Z-type cytokinins were only partially restored. Collectively, it can be concluded that cytokinins are important regulators of cambium development and that production of cytokinins in either the root or shoot is sufficient for normal development of both the root and shoot.
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Cites
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Regulation of plant growth by cytokinin
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The Plant Vascular System: Evolution, Development and Functions F
Lucas, W. J., Groover, A., Lichtenberger, R., Furuta, K., Yadav, S., Helariutta, Y., He, X., Fukuda, H., Kang, J., Brady, S. M., et al. (2013) · Journal of Integrative Plant Biology · doi:10.1111/jipb.12041 · Cited by 772
Bartrina, I., Otto, E., Strnad, M., Werner, T., & Schmülling, T. (2011) · The Plant Cell · doi:10.1105/tpc.110.079079 · Cited by 697
Hirakawa, Y., Kondo, Y., & Fukuda, H. (2010) · The Plant Cell · doi:10.1105/tpc.110.076083 · Cited by 567
Werner, T., Nehnevajova, E., Köllmer, I., Novák, O., Strnad, M., Krämer, U., & Schmülling, T. (2011) · The Plant Cell · doi:10.1105/tpc.109.072694 · Cited by 512
Diverse Roles of Strigolactones in Plant Development
Brewer, P. B., Koltai, H., & Beveridge, C. A. (2013) · Molecular Plant · doi:10.1093/mp/sss130 · Cited by 386
Metadata
- Authors
- Matsumoto-Kitano, M., Kusumoto, T., Tarkowski, P., Kinoshita-Tsujimura, K., Václavíková, K., Miyawaki, K., & Kakimoto, T.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2008-12-16
- Volume
- 105
- Issue
- 50
- Pages
- 20027-20031
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2135457288
- Cited by
- 434
- References
- 29
- FWCI
- 19.28
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Matsumoto-Kitano, M., Kusumoto, T., Tarkowski, P., Kinoshita-Tsujimura, K., Václavíková, K., Miyawaki, K., & Kakimoto, T. (2008). Cytokinins are central regulators of cambial activity. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0805619105
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