HORTICULTURE

Detailed explanation-1: -Agrobacterium tumefaciens is a pathogenic bacterium that causes crown gall disease, a plant tumor affecting a wide range of plant species. Crown galls develop upon transfer of a portion of the tumor-inducing (Ti) plasmid, the transfer-DNA (T-DNA), into the genome of the bacterium’s plant hosts (Chilton et al., 1980).

Detailed explanation-2: -Crown gall is a plant disease caused by the soil-inhabiting bacterium, Agrobacterium tumefaciens. The bacterium causes abnormal growths or galls on roots, twigs, and branches of euonymus and other shrubs primarily in the rose family. The bacterium stimulates the rapid growth of plant cells that results in the galls.

Detailed explanation-3: -Crown gall is caused by a bacterium that produces galls at the base of the stem, root crown or on other plant parts. The bacterium infects only through fresh wounds. If infected at a young age, plants may be stunted and not grow properly.