FIG 6.

Fluorescent in situ hybridization (FISH) observations of Rimicaris kairei branchiostegites with specific probes performed on semi-thin sections (7 μm) stained with 4′,6-diamidino-2-phenylindole (DAPI) (blue). (A) Branchiostegite section of a black morph shrimp from Kairei hybridized with Campylobacterota-specific (yellow) and Gammaproteobacteria-specific (magenta) probes. (B) Branchiostegite section of a brown morph shrimp from Edmond hybridized with a Desulfobacterota-specific (green) probe. The upper right corner of this image was manually erased for illustrative purpose as it corresponds to the PAP pen circle; the raw image is available in Fig. S9 in the supplemental material. (C) Branchiostegite section of a black morph shrimp from Kairei hybridized with Campylobacterota-specific (yellow) and Bacteroidota-specific (red) probes.