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Updated: Aug 9, 2026

Introducing Shear Stress in the Study of Bacterial Adhesion
Published on: September 2, 2011
Effect of hydromechanical stress on cellular antigens of Bordetella pertussis
M E Rodriguez1, D F Hozbor, O M Yantorno
1Centro de Investigación y Desarrollo de Fermentaciones Industriales (CINDEFI), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina.
Abstract:
Cells of Bordetella pertussis grown in a bioreactor under stirring conditions were studied to investigate the effect of shear stress on cellular-bound filamentous haemagglutinin (FHA). FHA attached to the bacterial surface, unlike extracellular FHA, was not affected at the shear levels tested. Moreover, no other cellular immunogen involved in the whole-cell protective activity seemed to be affected by hydromechanical forces.
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