Choose the Non motile organism from the following-: (A) E. coli, (B) Vibrio cholera, (C) Proteus mirabilis, (D) Shigella dysentery
Answer is D. Shigella are sho Gram negative rods , they are non motile non sporing and non capsulated . Fimbriae may be present The given image proves shigella is less motile and therefore does not show turbidity through out the medium Ref: Ananthanarayan & panikers textbook of microbiology 9th edition page no 285