Careful cutting of the hypocotyl of Ricinus communis L. seedlings led to the exudation of pure sieve-tube sap for 2—3 h. This offered the possibility of testing the phloem-loading system qualitatively ...

Journal of Experimental Botany, Vol. 47, No. 300 (JULY 1996), pp. 863-870 (8 pages) To investigate the factors governing the accumulation of sucrose and amino acids in the taproots of sugar beet, ...

While the movement of water through xylem tissue is relatively well understood, the movement of solute-laden sap through phloem is not. One possibility is the ‘pressure flow hypothesis’ proposed by ...

Leaf vasculature plays a pivotal role in nutrient transport and leaf morphology. A new study in Brassica rapa reveals the developmental trajectories of vascular tissues in Chinese cabbage using single ...

Researchers monitored the progression of phloem production over time in field-grown HLB-affected citrus trees to determine how the trees are capable of sustaining new growth. Results showed that new ...

The phloem moves food substances that the plant has produced by photosynthesis to where they are needed for processes such as: Transport of substances in the phloem is called translocation. Phloem ...

These are distributed differently in roots and stems. In the root, the xylem forms a central column. It forms a solid support. The phloem is towards the centre, outside the xylem. Any green part of a ...