All are motile except?: (A) CI. histolyticum, (B) CI. Tetanosporum, (C) CI. perfringens, (D) CI. septicum
Answer is C. It is a pump Gram-positive bacillus was straight parallel sides and rounded or truncated ends about 4-6 x1 um in size usually occurring singly or in chains or small bundles. It is pleomorphic and filamentous and involution forms are common it is capsulated and nonmotile Ref: Ananthanarayan & paniker's Textbook of Microbiology 9th edition pg no 253