Q261
Which of the following bacterium causes crown gall disease in plants?
A.
Bacillus thurigiensis
B.
Agrobacterium tumefaciens
AnswerC.
Pseudomonas fluorescens
D.
None of these
Answer: Option B
Solution
Answer: Option B
Solution:
Crown gall is caused by the bacterial plant pathogen, Agrobacterium tumefaciens. Crown gall bacteria enter plant roots through wounds.