Department of Botany, The Ohio State University, Columbus, Ohio 43210.
Plant Physiol. 1972 May;49(5):690-5. doi: 10.1104/pp.49.5.690.
Translocation profiles along the path were studied using a modified flap-feeding technique for the simultaneous application of THO and (14)C-sucrose. A re-evaluation of a mathematical model for phloem transport with reversible lateral exchange of tracer along the path indicates that lower apparent velocities for THO as compared to labeled carbohydrate are primarily due to extensive lateral exchange of THO along the conduction path. Path-chilling experiments support the concept that THO and (14)C-sucrose exhibit different lateral exchange characteristics. The data presented are consistent with a solutionflow mechanism.
使用改良的瓣片喂养技术，同时施加 THO 和 (14)C-蔗糖，研究了转运过程中的易位分布。对具有沿路径可逆侧向交换示踪剂的韧皮部运输的数学模型的重新评估表明，与标记的碳水化合物相比，THO 的表观速度较低主要是由于 THO 在传导路径上的广泛侧向交换。路径冷却实验支持 THO 和 (14)C-蔗糖表现出不同的侧向交换特性的概念。所呈现的数据与溶液流机制一致。
