The DOI matches its Crossref record.
Chemical Hydrophobicity and Uptake by Plant Roots
Abstract
The transpiration stream concentration factor (TSCF), the ratio between a compound's concentration in the xylem to that in the solution adjacent to the roots, is commonly used to describe the relative ability of an organic compound to be passively transported from root to shoot. Widely cited bell-shaped curves relating TSCFto the octanol/water partition coefficient (log Kow) imply that significant root uptake and transfer into shoot tissues occurs only for compounds falling within an intermediate hydrophobicity range. However, recent laboratory and field data for relatively water soluble compounds such as sulfolane, methyl tert-butyl ether (MTBE), and 1,4-dioxane suggest that these relationships are not universally applicable, especiallyfor nonionizable, highly polar, water soluble organics. To re-evaluate the relationship between root uptake and chemical hydrophobicity, TSCFs were measured for 25 organic chemicals ranging in log Kow from -0.8 to 5 using a pressure chamber technique. Using the TSCF values measured in this study, a new empirical relationship between TSCF (0 and 1) and log Kow (-0.8 to 5) is presented that indicates that nonionizable, polar, highly water soluble organic compounds are most likely to be taken up by plant roots and translocated to shoot tissue.
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Cited by
Patel, M., Kumar, R., Kishor, K., Mlsna, T., Pittman, C. U., & Mohan, D. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00299 · Cited by 2,654
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Blaine, A. C., Rich, C. D., Hundal, L. S., Lau, C., Mills, M. A., Harris, K. M., & Higgins, C. P. (2013) · Environmental Science & Technology · doi:10.1021/es403094q · Cited by 325
Blaine, A. C., Rich, C. D., Sedlacko, E. M., Hundal, L. S., Kumar, K., Lau, C., Mills, M. A., Harris, K. M., & Higgins, C. P. (2014) · Environmental Science & Technology · doi:10.1021/es500016s · Cited by 323
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Müller, C. E., LeFevre, G. H., Timofte, A. E., Hussain, F. A., Sattely, E. S., & Luthy, R. G. (2015) · Environmental Toxicology and Chemistry · doi:10.1002/etc.3251 · Cited by 91
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Zhang, J., Shi, Q., Yates, R., Liu, Z., & Gan, J. (2025) · Environmental Science & Technology · doi:10.1021/acs.est.5c07872 · Cited by 8
Capilla-Flores, R., Carbonell-Rozas, L., López-Ruíz, R., Garrido Frenich, A., & Romero-González, R. (2025) · Sustainable Chemistry and Pharmacy · doi:10.1016/j.scp.2025.102138 · Cited by 5
Metadata
- Authors
- Dettenmaier, E. M., Doucette, W. J., & Bugbee, B.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-12-10
- Volume
- 43
- Issue
- 2
- Pages
- 324-329
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2092988418
- Cited by
- 331
- References
- 0
- FWCI
- 6.56
- Type
- journal article
- Language
- en
- Open access
- closed
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