Which one of the following bacterium is used for production of transgenic plants

• Escherichia coli

• Bacillus thuringiensis

• Staphylococcus aureus

• Agrobacterium tumefaciens

D.

Agrobacterium tumefaciens

Transgenic plants are the plants that have been genetically engineered, a breeding approach that uses recombinant DNA techniques to create plants with new characteritics.

Plant cells do not have endogeneous plasmids. The plasmid vectors used for plant cell transformation are mostly based on Agrobacterium tumefaciens Ti plasmid. These are plant pathogenic Gram ve soil bacteria which cause crown gall disease of dicot plants.