1. Tardigrade
  2. Question
  3. Biology
  4. Read the two statements A and B and identify the correct choice from those given: Statement A: Agrobacterium tumefaciens is the causative agent of crown gall disease of dicots. Statement B: Agrobacterium tumefaciens cause infection by entering the plant through wounds and injuries.

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Q. Read the two statements A and B and identify the correct choice from those given :
Statement A : Agrobacterium tumefaciens is the causative agent of crown gall disease of dicots.
Statement B : Agrobacterium tumefaciens cause infection by entering the plant through wounds and injuries.

KCETKCET 2012Structural Organisation in Animals

Solution:

Agrobacterium tumefaciens is a Gram-negative bacterium. It is rod shaped bacterium. It is the causative agent of crown gall disease of dicots. They have a T-plasmid which have the tumor causing genes. This gene causes formation of tumor when the plant is infected with the bacterium. The bacterium enters the plant when there is some wound or injury caused to the plant.