Preadsorption controls to show the specificity of the antibody.

Abstract

<p>A. Transverse section of the thorax of <i>Philaenus</i> illuminated with bright field and UV light. Blue fluorescence is restricted to the pleural arch (energy store). The large muscles that power depression of the hind legs in jumping occupy most of the volume of the thorax. B. Incubation in the antibody after preadsorption with the antigen now fails to label the pleural arch. Only some weak immunolabelling is still present in the exoskeleton.</p