Figure 6

Immunohistochemical fluorescence microscopy of the distributions and abundance of Symbiodiniaceae, chromatophores carbonic anhydrase, calmodulin and mucus within tagged polyp tissues of O. faveolata. (A) Horizontal cross-section of decalcified polyp tissues of O. faveolata collected in March 2008 of superimposed emissions from mucus (blue fluorescence), carbonic anhydrase (green fluorescence), and calmodulin (red fluorescence). (B) Enlargement of the box shown in A. (C) Horizontal cross-section of a decalcified polyp of O. faveolata collected in May 2008 of superimposed mucus (blue fluorescence), carbonic anhydrase (green fluorescence), and calmodulin (red fluorescence). Enlargement from the box shown within a full polyp shown in Supplementary Fig. S7. Labels include: PS—primary septum; SS—secondary septum; PT—primary tentacle; ST—secondary tentacle; and OD—oral disk.