Tuesday, July 14, 2015

SCLERENCHYMA


SCLERENCHYMA
Primarily meant for providing mechanical support and protection to different parts of the plant body.
Hence, sclerenchyma occurs in almost all the parts of the plant body, including root, fruit and seed.
It provide hardness and stiffness to the plant
The sclerenchyma cells are usually elongated, with tapering ends. These are matured dead cells. Its wall are thickened by deposition of lignin hence are refered as lignified walls. The walls are so think that there is hardly any internal space. Such cells are commonly described as sclerenchyma fibres. In some cases, the cells are shorter and irregular in shape. Such cells are commonly described as sclereids or stone cells.

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