A cylinder of parenchyma or sclerenchyma cells that lies just inside the endodermis and is the outer most part of the stele of plants.
Pericycle is a primary tissue of plant roots and is the site for the initiation of lateral roots and two secondary meristems, the vascular cambium and cork cambium (phellogen). In this article the characteristics of the pericycle related to each of its functions are reviewed. The division of pericycle cells initiates the formation of new lateral roots, present in most plants. During this process, the pericycle cells push through several cell layers that form the root, including the endodermis. The structure that originates a new lateral root is called lateral root primordium. The pericycle is a cylinder of parenchyma or sclerenchyma cells that lies just inside the endodermis and is the outer most part of the stele of plants. Abstract. Pericycle is a primary tissue that maintains meristematic activity and is involved in lateral root initiation and development as well as in secondary root growth. As such it contributes to formation of the root system and gives rise to two secondary meristems in roots: vascular cambium and cork cambium (phellogen). Pericycle. (also pericambium), formative tissue in the roots and the stems of plants, located around the vascular cylinder. The pericycle is represented by one or more (in gymnosperms) layers of parenchymatous cells of the meristem, which are separated from the cells of the primary cortex by the endodermis. In roots, the pericycle is a unique tissue in that its cells continue to cycle for a long period and it has three functions – initiation of lateral roots, contribution to the initiation of the vascular cambium and initiation of the cork cambium.
http://www.els.net/WileyCDA/ElsArticle/refId-a0002085.html http://www.ehow.co.uk/info_8633961_functions-pericycle-root.html https://en.wikipedia.org/wiki/Pericycle http://onlinelibrary.wiley.com/doi/10.1038/npg.els.0002085/abstract http://encyclopedia2.thefreedictionary.com/pericycle http://www.els.net/WileyCDA/ElsArticle/refId-a0002085.html
what is pericycle in plants