What is the probable role of salicylic acid in the defence responses of plants?
A)to destroy pathogens directly
B)to activate systemic acquired resistance of plants
C)to close stomata, thus preventing the entry of pathogens
D)to activate heat-shock proteins
E)to sacrifice infected tissues by hydrolyzing cells

Question

Quizplus · Accepted Answer

Salicylic acid is known to play a crucial role in activating systemic acquired resistance in plants, which is a defense mechanism that helps plants to fight off pathogens. It does not directly destroy pathogens or close stomata, nor does it activate heat-shock proteins or sacrifice infected tissues.

What Is the Probable Role of Salicylic Acid in the Defence