pericycle

American  

[per-uh-sahy-kuhl] / ˈpɛr əˌsaɪ kəl /

noun

Botany.

1. the outermost cell layer of the stele in a plant, frequently becoming a multilayered zone.

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pericycle British  

/ -ˈsɪk-, ˌpɛrɪˈsaɪklɪk, ˈpɛrɪˌsaɪkəl /

noun

1. a layer of plant tissue beneath the endodermis: surrounds the conducting tissue in roots and certain stems

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pericycle Scientific  

/ pĕr′ĭ-sī′kəl /

1. A layer of nonvascular tissue that surrounds the vascular tissues in the roots of plants and is in turn surrounded by the endodermis. New lateral roots begin growth from the pericycle.

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Other Word Forms

• pericyclic adjective

Etymology

Origin of pericycle

From the Greek word períkyklos, dating back to 1890–95. See peri-, cycle

Example Sentences

The outermost cell layer of the root’s vascular tissue is the pericycle, an area that can give rise to lateral roots.

From Textbooks • Jun. 9, 2022

The pericycle is a ring of cells on the outer edge of the xylem and phloem.

From Textbooks • Jan. 1, 2015

Phloem cells fill the space between the X. A ring of cells called the pericycle surrounds the xylem and phloem.

From Textbooks • Jan. 1, 2015

The outer pericycle, endodermis, cortex and epidermis are the same in the dicot root.

From Textbooks • Jan. 1, 2015

The climbing species of Gnetum are characterized by the production of several concentric cylinders of secondary wood and bast, the additional cambium-rings being products of the pericycle, as in Cycas and Macrozamia.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" by Various