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  4. Living differentiated cells which have otherwise lost the capacity to divide, can regain the power of division under certain conditions. This phenomenon is termed as

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Q. Living differentiated cells which have otherwise lost the capacity to divide, can regain the power of division under certain conditions. This phenomenon is termed as

Plant Growth and Development

Solution:

The living differentiated cells, that have lost the capacity to divide can regain the power of division under certain conditions, this phenomenon is termed as de differentiation. E.g., formation of meristems - interfascicular cambium (formed from medullary rays) and cork cambium (formed from outer layer of cortex) from fully differentiated parenchyma cells. While doing so, such meristems/tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated. E.g., cells of secondary xylem, secondary phloem, periderm. Thus redifferentiation can be defined as maturation or differentiation of dedifferentiated tissues.