Concept of cellular totipotency was established by

Options

A. White
B. Haberlandt
C. Steward
D. Muir

Answer

To answer the question regarding who established the concept of cellular totipotency, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Cellular Totipotency**:
- Cellular totipotency refers to the ability of a single cell to develop into a complete organism. This means that the cell has the potential to differentiate into any cell type and form all tissues necessary for a complete organism.

2. **Identifying Key Examples**:
- Examples of totipotent cells include zygotes and spores. These cells can give rise to an entire organism under suitable conditions.

3. **Historical Context**:
- The concept of cellular totipotency was first introduced by a German botanist. This historical context is important for identifying the correct scientist.

4. **Identifying the Scientist**:
- The scientist who established the concept of cellular totipotency is Prof. Gottlieb Haberlandt. He conducted experiments in 1902 that demonstrated that every living cell of a plant could generate a whole new organism.

5. **Conclusion**:
- Based on the information gathered, the correct answer to the question is option B: Hambaland, which refers to Haberlandt.

### Final Answer:
The concept of cellular totipotency was established by B. Hambaland (Haberlandt).