Q. 1. Why may you want to alter ACC deaminase levels in bacteria symbiotically associated with plant root hairs? Diagram the logic of why this may "improve" the bacterial strain.

2. How can the plant stress response be altered in a fashion to "improve" the plant? Give a specific example and explain the logic.

3. What is meant by phytoremediation? Describe an example of its possible use? What types of molecules must be produced to accomplish this?

4. Describe an application for over expression of siderophores as a mechanism of biocontrol of pathogens. Explain the logic.

5. How can bacterial strains producing antibiotics are used for biocontrol. Explain the logic of a specific instance.

6. How can altering ice nucleation protein production yield a bacterial strain useful to agriculture? Explain the logic and how this works.