Fig. 4: Fluorescent micrographs of gill sections of two populations of Alviniconcha marisindica by FISH analyses targeting 16S rRNA and functional gene transcripts.

Each column shows the same section image taken by different excitation wavelengths of light. Left two columns (1 and 2) and right two columns (3 and 4) show the results of kAlv and eAlv gills, respectively. Green signals in the top panels are derived from 16S rRNA, and red signals in the middle panels are from hydAB gene transcripts using antisense probe (columns 1 and 3) and soxB gene transcripts using antisense probe (columns 2 and 4). The bottom panels show the synthesized fluorescence of 16S rRNA and each functional gene transcript.