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Hydrogel Control of Xylem Hydraulic Resistance in Plants
Abstract
Increasing concentrations of ions flowing through the xylem of plants produce rapid, substantial, and reversible decreases in hydraulic resistance. Changes in hydraulic resistance in response to solution ion concentration, pH, and nonpolar solvents are consistent with this process being mediated by hydrogels. The effect is localized to intervessel bordered pits, suggesting that microchannels in the pit membranes are altered by the swelling and deswelling of pectins, which are known hydrogels. The existence of an ion-mediated response breaks the long-held paradigm of the xylem as a system of inert pipes and suggests a mechanism by which plants may regulate their internal flow regime.
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Cites
CRC Handbook of Chemistry and Physics
(2014) · doi:10.1201/b17118 · Cited by 57,706
Cited by
Multi-scale multi-mechanism design of tough hydrogels: building dissipation into stretchy networks
Zhao, X. (2014) · Soft Matter · doi:10.1039/c3sm52272e · Cited by 1,252
Theory of dielectric elastomers
Suo, Z. (2010) · Acta Mechanica Solida Sinica · doi:10.1016/s0894-9166(11)60004-9 · Cited by 1,046
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
Corrigendum to : New handbook for standardised measurement of plant functional traits worldwide
Pérez-Harguindeguy, N., Díaz, S., Garnier, E., Lavorel, S., Poorter, H., Jaureguiberry, P., Bret-Harte, M. S., Cornwell, W. K., Craine, J. M., Gurvich, D. E., et al. (2016) · Australian Journal of Botany · doi:10.1071/bt12225_co · Cited by 759
Shabala, S., & Pottosin, I. (2014) · Physiologia Plantarum · doi:10.1111/ppl.12165 · Cited by 720
Metadata
- Authors
- Zwieniecki, M. A., Melcher, P. J., & Michele Holbrook, N.
- Venue
- Science
- Published
- 2001-02-09
- Volume
- 291
- Issue
- 5506
- Pages
- 1059-1062
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2005629845
- Cited by
- 516
- References
- 1
- FWCI
- 29.85
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zwieniecki, M. A., Melcher, P. J., & Michele Holbrook, N. (2001). Hydrogel Control of Xylem Hydraulic Resistance in Plants. Science. https://doi.org/10.1126/science.1057175
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
