Multiple choice

Agrobacterium tumefaciens is a serious pathogen that causes crown gall disease. To initiate an infection, it needs to transfer t-DNA into the plant cell. Which of the following secretion mechanisms is used by it to transfer t-DNA?

  1. Type IV secretion mechanism

  2. Type III secretion mechanism

  3. Type II secretion mechanism

  4. Type I secretion mechanism
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A Correct answer
Explanation

To transfer t-DNA into the plant cell, A. tumefaciens uses a type IV secretion mechanism that involves the production of a T-pilus.

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