Excised Barley root uptake of several (14)C labeled organic compounds.

Many organic pollutants potentially are available for uptake by plants and thus bioaccumulation and food contamination. One method of studying uptake is with excised roots, a technique extensively used with plant nutrients. A similar method was developed and used to evaluate uptake patterns of several (14)C-labeled organic chemicals. Uptake rate constants for the chemicals tested occurred in the following order: captan ≃ phenol > aniline > ethanol ≃ indole ≃ trifluralin ≃ propanil > 1,2,4-trichlorobenzene (TCB) > nitrobenzene ≃ atrazine > bromacil > simazine > monuron.