VMC 311: Systematic Veterinary Bacteriology and Mycology (2+1)

MORPHOLOGY

• Salmonella are Gram-ve, non-capsulated, non-spore forming, short rods.
• They are motile by peritrichous flagella, except S.gallinarum and S.pullorum.
• Most salmonella strains possess type –1 fimbriae associated with mannose sensitive adhesive properties.
• Strains of S.gallinarum and S.pullorum form type 2 fimbriae, which are morphologically and antigenically like type 1 fimbriae but non-adhesive.