Pits are typically formed in the secondary layers of plant cell walls.
Pits are characteristic features of cell walls possessing secondary layers. According to the reference, each pit usually has a complementary pit located opposite it in the neighboring cell. This arrangement facilitates communication and transport between adjacent cells.
Here's a breakdown:
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Secondary Cell Walls: These are thick layers deposited inside the primary cell wall in certain plant cells, providing additional strength and support.
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Pit Formation: During the development of the secondary cell wall, areas are left unthickened. These unthickened areas are called pits.
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Pit Pairs: Pits often occur in pairs between adjacent cells. These paired pits are aligned so that the thin areas (pit membranes) are opposite each other, allowing for the exchange of substances between the cells.
Therefore, the formation of pits is directly linked to the deposition of secondary cell walls.
