Microorganism (bacterium) that produces crown gall disease in the wild; it does so by introducing a part of its genetic material into the plant to direct it to make compounds it needs to live. A small piece of genetic material was isolated from this bact
Bacterial genus noted for crown gall tumor-inducing ability. Oncogenic strains are host to a tumor-inducing (Ti) plasmid which can be transmitted between species. A segment (T) of the Ti plasmid is transmitted to the plant host cell and is the immediate agent of tumor induction.
MEDIATED TRANSFORMATION Transformation that is achieved using the natural gene-transfer mechanism of Agrobacterium tumefaciens.