I want to know the answer to the following question:
How can a bacteria in the soil affect a plant?
All the background I'm provided with is that "Agrobacterium tumefaciens, a soil rhizosphere bacterium, can attach to plant cells and infect them with a callus-inducing Ti plasmid by horizontal gene transfer, causing a callus infection called crown gall disease.". Is that enough to answer the question?
Answer: yes