Immunolocalization of CsGRN in C. sinensis adult worm. Sections of C. sinensis adult worm were probed with rat anti-CsGRN serum (a, b, e, f) or normal rat sera (c, d, g, h) followed by my3-conjugated anti-rat IgG. Sections were imaged under fluorescence light (b, d, f, h), or white light (a, c, e, g). CsGRN was distributed in the tegument and testes of the adult worm (b, f). Blue arrow: tegument; Yellow arrow: testes. The images were magnified at 100× (scale-bar: 200 μm) for adult worm