root cap

views updated May 18 2018

root cap (calyptra) A cone-shaped structure that covers the root tip and develops as a result of cell division by a meristem at the root apex (see calyptrogen). It protects the root tip as it grows between the soil particles. The cells are constantly worn away by friction and are replaced by the meristem. See also mucigel.

A Dictionary of Biology

root cap

views updated May 23 2018

root cap The tissue that covers the apex of a root.

A Dictionary of Plant Sciences MICHAEL ALLABY

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root cap

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