Gram Positive Bacilli
True about corynebacterium diphtheriae are all except: (DNB Dec 2011)
|A||Iron is not required for toxin production|
|B||Toxin production is responsible for local reaction|
|C||Nonsporing, noncapsular & non motile|
|D||Toxin production is by lysogenic conversion|
Iron is not required for toxin production
a. C. diphtheriae is a gram positive bacillus, non sporing, non motile and non capsulated.
b. Toxin production depends upon the lysogenic conversion by beta phage and optimum iron production (0.1 mg/ litre).
c. Toxin is responsible for both local reaction and systemic disease.