A tumor including plasmid widely used in the production of transgenetic palnts is that of

Options

A. Escherichia coli
B. Bacillu thuringgiensis
C. Staphylococcus aureus
D. Agrobacterium tumefaciens

Answer

To answer the question about the tumor-inducing plasmid widely used in the production of transgenic plants, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Transgenic Plants**:
- Transgenic plants are genetically modified organisms (GMOs) where genes from other species are introduced to enhance certain traits, such as disease resistance or increased yield.

2. **Identifying Tumor-Inducing Plasmids**:
- Tumor-inducing plasmids (Ti plasmids) are specific plasmids that can cause tumors in plants. They are essential tools in plant biotechnology for creating transgenic plants.

3. **Recognizing the Bacteria**:
- The primary bacterium known for carrying Ti plasmids is **Agrobacterium tumefaciens**. This bacterium is well-studied and widely used in genetic engineering of plants.

4. **Mechanism of Action**:
- Agrobacterium tumefaciens infects dicotyledonous plants and transfers part of its Ti plasmid into the plant cells. This leads to the formation of tumors (galls) and the production of specific compounds that benefit the bacteria.

5. **Conclusion**:
- The correct answer to the question is **Agrobacterium tumefaciens**, as it is the tumor-inducing plasmid widely used in the production of transgenic plants.

### Final Answer:
The tumor-inducing plasmid widely used in the production of transgenic plants is that of **Agrobacterium tumefaciens**.

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