from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A plant tissue characteristic of the roots, located between the endodermis and phloem.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. : In a plant root, the cylinder of plant tissue between the endodermis and phloem.
from The Century Dictionary and Cyclopedia
- n. The outermost zone of cells of the stele immediately within the endodermis.
Vascular tissue 142 a. The pericycle is the first layer of cells within the vascular cylinder 1) Its cells have retained the capacity to divide.
The number of xylem groups is fairly large and the development of the xylem is from the pericycle towards the centre of the stele.
The rest of the root forming the central core is the stele and at its periphery there is a single layer of cells called the = pericycle =.
Arrows denote GUS expression in pericycle cells following NAA treatments.
Monocot roots also have pericycle, endodermis, cortex, and epidermis.
Chen, X.Y.; Yamada, Y.; Hashimoto, T.: An Atropa bel - ladonna hyoscyamine 6b-hydroxylase gene is differentially expressed in the root pericycle and anthers.
Slide 6: cortex pericycle pith Xylem endodermis epidermis F ก F Fก 10x
Slide 7: F ก F Fก 40x pericycle xylem pith phloem endodermis
 pericycle (of root)  pollen mother cell  85
Root-hair; 2. piliferous layer; 3. cortex; 4. endodermis; 5. pericycle; 6. xylem; 7. phloëm.]
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