Mucosal immunoglobulins protect the olfactory organ of teleost fish against parasitic infection
Fig 4
IgT coats Ich parasite located in olfactory organ of infected trout.
Four different microscope images (A-D) of slides immunofluorescence staining of Ich parasites in olfactory organ paraffinic sections from trout infected with Ich after 28 days (n = 6). (A and B) Immunofluorescence stained with Ich (magenta), IgM (red) and IgT (green), nuclei stained with DAPI (blue) (from left to right). (C and D) Immunofluorescence stained with Ich (magenta), IgD (red) and IgT (green) with nuclei stained with DAPI (blue) (from left to right); DIC images showing merged staining (isotype-matched control antibody staining, S3A–S3C Fig). Scale bars, 20 μm. Data are representative of at least three different independent experiments.