| Abstract: | An attempt was made, using radiophosphate, to trace the movementof phosphate in the root systems of Vicia faba during the period0 to 2 hours after commencement of uptake. The results showthat phosphate inserted at an isolated point is first distributedabout the root systems of turgid plants and tends to accumulatetemporarily in the lateral roots before large-scale movementup the plant axis begins. This increased concentration in thelaterals, which is not thought to represent metabolic accumulation,is at a maximum at 75 minutes in turgid plants but in wiltedplants it terminates more rapidly. It is affected by potassiumcyanide solutions. |
