Pit connections between xylem conduits Xylem conduits are connected through openings in the lignified secondary walls known as pits (Fig. 1). … The primary walls and intervening middle lamella of two opposing cells make up the pit membrane, which lies in the center of the pit pair.

Where are pits present?

Pits are the characteristic depressions on the cell walls of plant cells. They act as the channels for the transport of water and minerals between adjacent cells. Pits of two neighboring cells are usually located opposite to each other and these opposite pits together are called pit pair.

What does a phloem contain?

phloem, also called bast, tissues in plants that conduct foods made in the leaves to all other parts of the plant. Phloem is composed of various specialized cells called sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells.