Which of the following is known as "natural genetic engineer "?

Agrobacterium tumefaciens E.coli Haemophilus parainfluenzae Bacillus globigli

Agrobacterium tumefaciens

Agrobacterium tumefaciens is a gram-negative soil bacteria, which has natural genetic engineering capability by which it integrates its plasmid genes into the plant genome. This is a natural process and researchers are exploiting bacteria’s ability to transfer genes of interest into the plants. Agrobacterium tumefaciens will transfer genes (T-DNA region of Ti plasmid) into the plant that produces its food or nutrient called opines (opines are not needed for plants). Apart from that, it also integrates genes for cell division and proliferation leading to crown gall disease. So that, more number of cells result in more production of opines.