Refer to the figure, showing gene-for-gene resistance. What would a resistant plant use to help defend itself against a pathogen closely related to the one that produced the wedge-shaped molecule?

Question

Refer to the figure, showing gene-for-gene resistance.  What would a resistant plant use to help defend itself against a pathogen closely related to the one that produced the wedge-shaped molecule?

Quizplus · Accepted Answer

A resistant plant would use its existing R gene to defend itself against a pathogen closely related to the one that produced the wedge-shaped molecule. Gene-for-gene resistance works by recognizing specific pathogen Avirulence (Avr) proteins by plant Resistance (R) proteins. The R gene present in the resistant plant would recognize the Avr protein produced by the pathogen and trigger the plant's defense mechanisms.

Refer to the Figure, Showing Gene-For-Gene Resistance