Organics transport pathway and solutes。 Organics transport mechanism in the phloem Factors affecting the organics transport Translocation of the organics
➢ Organics transport pathway and solutes. ➢ Organics transport mechanism in the phloem. ➢ Factors affecting the organics transport. ➢ Translocation of the organics
(b) Effects of girdling the trunk of a tree (a) at the beginning (b)swelled bark above
Effects of girdling the trunk of a tree (a) at the beginning (b) swelled bark above
The structure of phloem tissue SE-CC complex Conce Sieve element (se): conducting cell connected through specialized sieve plates. companion cell(CC): intimately associated with the Se, provide metabolic support for se
The structure of phloem tissue SE—CC complex ➢ Sieve element (SE): conducting cell connected through specialized sieve plates. ➢ companion cell (CC): intimately associated with the SE, provide metabolic support for SE