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Originally Posted by Ekka  So imagine a wad of cells 10 deep for example are laid down, the inner couple become the wall, the middle the xylem/phloem etc and the outside periderm. |
nah not quite like that in one big lump of cells, i think its a bit more structured; as one row of cells splits off onto the inside of the cambium they become either xylem or wall 4 depending on whatever the situation, but the normal course of phloem and periderm cell division (towards the outside of the cambium) and differentiation is uninterupted because its already on the outside of wall 4.
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Originally Posted by Ekka So I dont think that the cells laid down are suberized but normal then converted to suberized ... |
yep sorry, my bad because all new cells separate from meristematic cells as undifferentiated paranchyma
how do tracheids resist decay better than vessels?