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phelloderm cells to inside.
Cork – highly suberized inner cell wall, the cell becomes dehydrated as matures, dead at
Phelloderm – parenchyma cells, living at maturity (often only one cell thick)
- Formation of periderm leads to sloughing off of cortex and epidermis (Fig. 24-16c).
- Unlike vascular cambium, cork cambium has a lifespan (often one year). This means that new cells
must become meristematic. What happens when you use up all of the pericycle cells? Think about it
now….we will talk about it when we discuss secondary growth in the stem. Self Test: First, label the top illustration of a cross-section through a primary root then explain
what occurs between each figure....
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- Spring '14
- phloem, Plant anatomy, Vascular cambium, cork cambium, Secondary Roots