Ferrous ion was added to the culture solution, followed by the introduction of tetracyclines (TCs), to explore the effect of iron plaque (IP) on the uptake and translocation of TCs by water spinach (Ipomoea aquatic Forsk.). The adsorption amount of TCs on the root surface positively correlated with the amount of IP, except for doxycycline and minocycline. The bioconcentration factor of TCs in roots increased and fitted well with the amount of IP. The concentration of TCs in acrial tissues was three to four orders of magnitude lower than that in roots, and the translocation factor of TCs also fitted well with the amount of IP in a negative linear relationship. Furthermore, IP significantly influenced the metabolism of TCs in water spinach. The accumulation of TC metabolites increased with the increment of IP in roots rather than in acrial tissues, which showed the significance of IP in the metabolism and accumulation of TCs in aquatic plants. Therefore, the metabolism of TCs should not be ignored if IP is induced on the root surface, and the distribution of metabolites should be taken into consideration for the risk assessment and antibiotic pollution control for aquatic plants.

将亚铁离子添加到培养液中，然后引入四环素（TC），以研究铁斑块（IP）对水菠菜（Ipomoea水生Forsk）吸收和转运TC的影响。）。除强力霉素和米诺环素外，根表面TC的吸附量与IP量呈正相关。根中TCs的生物富集因子增加，并与IP量很好地吻合。泪腺组织中TCs的浓度比根部低3至4个数量级，并且TCs的易位因子也与IP量呈负线性关系。此外，IP还显着影响了菠菜中TC的代谢。TC代谢产物的积累随根部IP的增加而不是根部组织中IP的增加而增加，这表明IP在水生植物TC的代谢和积累中具有重要意义。因此，如果在根表面诱导IP，则TC的代谢不容忽视，