The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Sucrose synthase affects carbon partitioning to increase cellulose production and altered cell wall ultrastructure
Open accessAbstract
Overexpression of the Gossypium hirsutum sucrose synthase ( SuSy ) gene under the control of 2 promoters was examined in hybrid poplar ( Populus alba × grandidentata ). Analysis of RNA transcript abundance, enzyme activity, cell wall composition, and soluble carbohydrates revealed significant changes in the transgenic lines. All lines showed significantly increased SuSy enzyme activity in developing xylem. This activity manifested in altered secondary cell wall cellulose content per dry weight in all lines, with increases of 2% to 6% over control levels, without influencing plant growth. The elevated concentration of cellulose was associated with an increase in cell wall crystallinity but did not alter secondary wall microfibril angle. This finding suggests that the observed increase in crystallinity is a function of altered carbon partitioning to cellulose biosynthesis rather than the result of tension wood formation. Furthermore, the augmented deposition of cellulose in the transgenic lines resulted in thicker xylem secondary cell wall and consequently improved wood density. These findings clearly implicate SuSy as a key regulator of sink strength in poplar trees and demonstrate the tight association of SuSy with cellulose synthesis and secondary wall formation.
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Cites
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Cited by
An Overview of Sucrose Synthases in Plants
Stein, O., & Granot, D. (2019) · Frontiers in Plant Science · doi:10.3389/fpls.2019.00095 · Cited by 717
The Cell Biology of Cellulose Synthesis
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Lignin and Biomass: A Negative Correlation for Wood Formation and Lignin Content in Trees
Novaes, E., Kirst, M., Chiang, V., Winter-Sederoff, H., & Sederoff, R. (2010) · Plant Physiology · doi:10.1104/pp.110.161281 · Cited by 421
Plant cell wall polymers as precursors for biofuels
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Metadata
- Authors
- Coleman, H. D., Yan, J., & Mansfield, S. D.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2009-08-04
- Volume
- 106
- Issue
- 31
- Pages
- 13118-13123
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2081714905
- Cited by
- 403
- References
- 29
- FWCI
- 24.94
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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