abscission layer

abscission layer

noun Botany.

  1. the layer of specialized, cutinized parenchyma cells that develops in the abscission zone, the disintegration of which causes abscission.


  1. a layer of parenchyma cells that is formed at the bases of fruits, flowers, and leaves before abscission. As the parenchyma disintegrates, the organ becomes separated from the plant

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