Ritchie, Gary A.
May 2010
American Rose;May/Jun2010, Vol. 40 Issue 9, p32
The article investigates the anatomy and physiology of a rose focusing on the phloem. The rose has two types of phloem including the primary phloem producing terminal meristems at the tips of shoots and the secondary phloem being generated by the cambium. Rose canes are producing less phloem than xylem cells. The phloem contains 4 cell types including the sieve tubes, fibers, companion cells and parenchyma. Phloem transport could be driven by diffusion pressure flow and electroosmosis.


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