Non-motile Clostridia is: (A) Clostridium perfringens, (B) Clostridium novyi, (C) Clostridium botulism, (D) Clostridium difficle
Answer is A. Clostridia are motile with peritrichous flagella. Exceptions are Clostridium perfringes and Clostridium tetani type IV which are non-motile. Motility is slow and has been described as 'stately'. C.perfringens and C.butyricum are capsulated, while others are not. Reference: Textbook of Microbiology; Anathanarayan and paniker's; 10th edition; Page no: 257