What is the Difference Between Dedifferentiation and Redifferentiation?

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The main difference between dedifferentiation and redifferentiation lies in the process and the result of the cellular changes. Here are the key differences:

Dedifferentiation:

  • Process by which mature cells reverse their differentiated state and acquire pluripotency.
  • Cells regain the ability to divide and lose the function they attained after differentiation.
  • Example: Formation of vascular cambium and cork cambium (meristems) from fully differentiated parenchymal cells.

Redifferentiation:

  • Process by which dedifferentiated cells lose their ability to divide and become specialized to perform a role by converting into a part of the permanent tissue.
  • Cells lose their ability to divide and attain a specific function.
  • Example: Formation of secondary xylem and secondary phloem, secondary cortex cork from the interfascicular cambium, and cork cambium.

In summary, dedifferentiation is the process by which differentiated cells regain their ability to divide and lose their specific functions, while redifferentiation is the process by which dedifferentiated cells lose their ability to divide and become specialized to perform a specific role in the permanent tissue.

Comparative Table: Dedifferentiation vs Redifferentiation

Here is a table comparing dedifferentiation and redifferentiation:

Feature Dedifferentiation Redifferentiation
Definition The process by which differentiated cells in plants regain their ability to divide. The process through which a dedifferentiated cell acquires a specific role and loses its capacity to divide once more.
Gene Expression Manifested by a gene expression pattern, a change in the shape, protein expression pattern, and function. The process and the result of developing additional new characters.
Examples Formation of vascular cambium and cork cambium (meristems) from fully differentiated parenchymal cells. Formation of secondary xylem and secondary phloem, secondary cortex cork from the interfascicular cambium, and cork cambium.

In summary, dedifferentiation is the process by which differentiated cells in plants regain their ability to divide, while redifferentiation is the process through which a dedifferentiated cell acquires a specific role and loses its capacity to divide once more.