1. Schulz, A., Role of Plasmodesmata in Solute Loading and Unloading, Plasmodesmata. Annual Plant Reviews, vol. 18, Oparka, K.J., Ed., Oxford: Blackwell Sci., 2005, pp. 135–161.
2. Patrick, J.W., Phloem Unloading: Sieve Element Unloading and Post-Sieve Element Transport, Annu. Rev. Plant Physiol. Plant Mol. Biol., 1997, vol. 28, pp. 165–190.
3. Lalonde, S., Tegeder, M., Throne-Holst, M., Frommer, W.B., and Patrick, J.W., Phloem Loading and Unloading of Sugars and Amino Acid, Plant, Cell Environ., 2003, vol. 26, pp. 37–56.
4. Oparka, K.J., Duckett, C.M., Prior, D.A.M., and Fisher, D.M., Real Time Imaging of Phloem Unloading in the Root Tip of Arabidopsis, Plant J., 1994, vol. 5, pp. 756–766.
5. Feshchenko, N.F., Krasavina, M.S., Burmistrova, N.A., and Nosov, A.V., Phloem Unloading and Activity of Sucrose-Hydrolyzing Enzymes in the Apex of Growing Root, Dokl. Akad. Nauk, 2004, vol. 399, pp. 705–707.