separation layer

separation layer
: a distinct layer within an abscission zone of a plant varying in thickness and composed of cells that are smaller and different in shape from those above and below and contain abundant starch and dense cytoplasm by the disorganization of which abscission is effected — called also abscission layer

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Useful english dictionary. 2012.

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  • abscission layer — Bot. the layer of specialized, cutinized parenchyma cells that develops in the abscission zone, the disintegration of which causes abscission. Also called separation layer. [1915 20] * * * …   Universalium

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