The effective concentration of HC toxin in μg/ml is

A. 0.1

B. 0.2

C. 0.3

D. 0.4

Answer: Option B

Solution(By Examveda Team)

The effective concentration of HC toxin in μg/ml is 0.2.
HC-toxin is a cyclic tetrapeptide of the structure cyclo (D-Pro-L-Ala-D-Ala-L-Aeo), where Aeo stands for 2-amino-9,10-epoxi-8-oxodecanoic acid.
It is a determinant of specificity and virulence in the interaction between the producing fungus, Cochliobolus carbonum, and its host, maize.