Middle Lamella

Definition - What does Middle Lamella mean?

In plants, the middle lamella refers to the layer of pectin that lies between neighboring cells. Consisting of Mg2+ and Ca2+ ions, the middle lamella holds neighboring cells together. providing cushioning to protect the plant against shear stress, the middle lamella also acts as a protective layer around the plasma membrane.

MaximumYield explains Middle Lamella

The middle lamella is usually deposited during cytokinesis. It also provides additional stability to the plant, while encouraging plasmodesmata to form between the cells. In certain plants that have a thicker secondary wall, it may be more difficult to distinguish the primary cell wall from the middle lamella.

When the plant loses its petals and leaves, the cells can separate from each other after the middle lamella dissolves. According to scientists, persimmon fruits may soften after the occurrence of cell wall separation and degradation of the middle lamella.

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