Uptake pathways of organic chemicals from soil by agricultural plants

• Published in: Chemosphere (Oxford) Vol. 28; no. 2; pp. 297 - 303
• Main Authors: Schroll, R., Bierling, B., Cao, G., Dörfler, U., Lahaniati, M., Langenbach, T., Scheunert, I., Winkler, R.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 1994; Elsevier
• Subjects: Agronomy. Soil science and plant productions; Animal, plant and microbial ecology; Applied ecology; Biological and medical sciences; Ecotoxicology, biological effects of pollution; Effects of pollution and side effects of pesticides on plants and fungi; Fundamental and applied biological sciences. Psychology; Soil and water pollution; Soil science; Translocation; Dioxin derivatives; Cultivated soil; Benzene derivatives; Sandy soil; Soil pollution; Herbicide; Contamination; Pollutant; Absorption; Residue; Triazine derivatives; Brown soil; Loam soil; Ureas; Cultivated plant; Soil plant relation; Loamy sand soil; Organic compounds
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/0045-6535(94)90126-0

The uptake of eight organic xenobiotics from soil by plants was studied in a closed aerated laboratory soil-plant system which allowed to distinguish between uptake via the roots and via the leaves after evaporation. Residues of all chemicals tested were detected in roots and in shoots; however, uptake pathways were different. For hexachlorobenzene (HCB) and octachlorodibenzo-p-dioxin (OCDD), no translocation from roots to shoots and vice-versa was observed. The s-triazine terbuthylazine was taken up nearly exclusively by the roots and translocated to the shoots. The herbicides chlorotoluron and trichloroacetic acid (TCA) were transported in both directions. The uptake of trichloroethylene (TCE), chlorobenzene and methyl-t-butylether (MTBE) was dominated by foliar uptake.