AbstractWhole plants of Ricinus communis var. Gibsonii were used to study the mobility of some xenobiotics in the phloem. Solutions of14C‐ or35S‐labelled test compounds were introduced directly into the hollow petiole of a leaf that was exporting assimilates. Translocation was monitored by collecting phloem exudate from an incision in the stem bark beneath the treated leaf. Using 3Hsucrose as an internal standard, qualitative and quantitative results were obtained for a variety of model compounds, including herbicides, fungicides and a nematic
展开▼
机译:摘要蓖麻(Ricinus communis var.)的全株Gibsonii用于研究韧皮部中一些异种生物的迁移性。将 14C 或 35S 标记的测试化合物溶液直接引入输出同化物的叶子的空心叶柄中。通过从处理叶下方茎皮的切口收集韧皮部渗出物来监测易位。使用[3H]蔗糖作为内标,获得了多种模型化合物的定性和定量结果,包括除草剂、杀菌剂和向列剂
展开▼