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Multiple Cellulose Synthase Catalytic Subunits Are Required for Cellulose Synthesis in Arabidopsis
Open accessAbstract
The irregular xylem 1 (irx1) mutant of Arabidopsis has a severe deficiency in the deposition of cellulose in secondary cell walls, which results in collapsed xylem cells. This mutation has been mapped to a 140-kb region of chromosome 4. A cellulose synthase catalytic subunit was found to be located in this region, and genomic clones containing this gene complemented the irx1 mutation. IRX1 shows homology to a previously described cellulose synthase (IRX3). Analysis of the irx1 and irx3 mutant phenotypes demonstrates that both IRX1 and IRX3 are essential for the production of cellulose in the same cell. Thus, IRX1 and IRX3 define distinct classes of catalytic subunits that are both essential for cellulose synthesis in plants. This finding is supported by coprecipitation of IRX1 with IRX3, suggesting that IRX1 and IRX3 are part of the same complex.
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Citations
Cited by
Kim, H. J., & Triplett, B. A. (2001) · Plant Physiology · doi:10.1104/pp.010724 · Cited by 709
The Cell Biology of Cellulose Synthesis
McFarlane, H. E., Döring, A., & Persson, S. (2014) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-050213-040240 · Cited by 623
Desprez, T., Juraniec, M., Crowell, E. F., Jouy, H., Pochylova, Z., Parcy, F., Höfte, H., Gonneau, M., & Vernhettes, S. (2007) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0706569104 · Cited by 616
Reduced cellulose synthesis invokes lignification and defense responses in Arabidopsis thaliana
Caño‐Delgado, A., Penfield, S., Smith, C., Catley, M., & Bevan, M. (2003) · The Plant Journal · doi:10.1046/j.1365-313x.2003.01729.x · Cited by 458
Secondary cell wall biosynthesis
Zhong, R., Cui, D., & Ye, Z. (2019) · New Phytologist · doi:10.1111/nph.15537 · Cited by 373
Metadata
- Authors
- Taylor, N. G., Laurie, S., & Turner, S. R.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2000-12
- Volume
- 12
- Issue
- 12
- Pages
- 2529-2539
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2098492006
- Cited by
- 468
- References
- 0
- FWCI
- 32.14
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Taylor, N. G., Laurie, S., & Turner, S. R. (2000). Multiple Cellulose Synthase Catalytic Subunits Are Required for Cellulose Synthesis in Arabidopsis. The Plant Cell. https://doi.org/10.1105/tpc.12.12.2529
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