Unformatted text preview: phloem in the primary root stele. Once formed, the cambium produces xylem inward and phloem outward. Additional parenchyma cells form rays • Pericycle cells dedifferentiate to form a cork cambium, which produces a cork layer as well. • The annual growth of "wood" and cork-like bark in secondary roots is very similar to stem secondary growth (to be discussed soon)....
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.
- Fall '09