3,4,3',4'-RACHLOROAZOBENZENE: ITS TRANS-LOCATION AND METABOLISM IN RICE PLANTS |
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| Authors: | GERALD G. STILL |
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| Affiliation: | United States Department of Agriculture, Agricultural Research Service, Crops Research Division, Metabolism and Radiation Research Laboratory, Fargo, North Dakota, U.S.A. |
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| Abstract: | Summary. 3,4,3',4'-Tetrachloroazobenzene (TCAB) and TCAB-14C were supplied to the roots of rice ( Oryza sativa L.) plants in nutrient solution. An analysis of the shoots indicated that the TCAB was absorbed and translocated to the shoots. The translocated material was characterized by gas-liquid chromatography and mass spectrometry. Roots were exposed to saturation concentrations of TCAB-14C in liquid culture to determine the translocation and distribution of the compound. Only 5'6% of the total azobenzene present in the nutrient solution was absorbed by the intact rice plants and only 3'2% of the absorbed TCAB-14C was translocated to the shoots after 12 days of treatment. No TGAB was isolated from plants treated with propanil or 3,4-dichloroaniline after 14 days of treatment. |
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