[14C]-MBOCA was absorbed by cabbage (Brassica oleracea L.), bean (Phaseoh's vulgaris L.), and sugar beet (Beta vulgaris L.) leaves, but did not move beyond the absorption point. Radio autographs of bean, sorghum (Sorghum vulgare Pers.), orchard grass (Dactylis glomerata L.), and carrot (Daucus carrota L.) plants exposed to [14C]-MBOCA via hydroponic culture showed considerable radioactivity associated with the roots with only limited translocation of [14C] into upper plant parts. Bean and cucumber (Cucumis sativa L.) plants grown in [14C]-MBOCA amended soil translocated virtually no [14C] into aerial parts, but again considerable radioactivity was found on roots. Radioactivity could not be rinsed off roots with water or acetone, and a small amount of radioactivity was observed in the xylem-phloem layer of the carrot root.
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Voorman, R., Penner, D. Plant uptake of MBOCA [4,4′-methylene-bis (2-chloroaniline)]. Arch. Environ. Contam. Toxicol. 15, 589–593 (1986). https://doi.org/10.1007/BF01056573
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