Parenchyma and Collenchyma both are permanent types of tissues of plants. We can differentiate parenchyma in collenchyma on the basis of their location, function, structure, and their ability. The differences between parenchyma and collenchyma are.
Characteristics of Parenchyma
1. The cell wall of parenchyma has uniform wall thickenings.
2. There is no deposition of cellulose and pectin at specific areas among the cells.
3. Parenchyma has a less refractive index.
4. It stores food and provides mechanical strength only when cells are fully turgid.
5. Cells are generally isodiametric.
6. Parencyma has the ability of dedifferentiation.
7. It helps in secondary growth.
8. It has several modifications (epidermis, epiblema, aerenchyma, chlorenchyma, etc.).
9. It is found in all parts of the plant.
Characteristics of Collenchyma
1. The cell wall of collenchyma has unequal wall thickenings at angles, tangential walls, or intercellular spaces.
2. There is the deposition of cellulose and pectin at specific areas among the cells.
3. Collenhyma has a high refractive index.
4. it helps in mechanical support and cell elasticity.
5. Cells are generally elongated.
6. Collenchyma rarely shows dedifferentiation.
7. It rarely helps in secondary growth.
8. It has three types of modifications (angular, lacunae, and lamellate Collenchyma).
9. It is mostly found in the hypodermis of aerial parts of some herbaceous dicot plants.
Difference between Parenchyma and Collenchyma
| Parenchyma | Collenchyma |
|---|---|
| 1. The cell wall of parenchyma has uniform wall thickenings. | 1. The cell wall of collenchyma has unequal wall thickenings at angles, tangential walls, or intercellular spaces. |
| 2. There is no deposition of cellulose and pectin at specific areas among the cells. | 2. There is the deposition of cellulose and pectin at specific areas among the cells. |
| 3. Parenchyma has a less refractive index. | 3. Collenhyma has a high refractive index. |
| 4. It stores food and provides mechanical strength only when cells are fully turgid. | 4. it helps in mechanical support and cell elasticity. |
| 5. Cells are generally isodiametric. | 5. Cells are generally elongated. |
| 6. Parencyma has the ability of dedifferentiation. | 6. Collenchyma rarely shows dedifferentiation. |
| 7. It helps in secondary growth. | 7. It rarely helps in secondary growth. |
| 8. It has several modifications (epidermis, epiblema, aerenchyma, chlorenchyma, etc.). | 8. It has three types of modifications (angular, lacunae, and lamellate Collenchyma). |
| 9. It is found in all parts of the plant. | 9. It is mostly found in the hypodermis of aerial parts of some herbaceous dicot plants. |
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