Fig. 2. Siderastrea stellata Verrill, 1868 in Histopatological effects of bleaching and disease on the coral Siderastrea stellata from coastal reefs of Brazil

Fig. 2. Siderastrea stellata Verrill, 1868 colonies healthy conditions (a), bleached (b), white plague disease (c), and colonies with pigmentation pattern altered (PPA) (d). And their respective histological sections, stained in H & E: a.1, healthy body wall epithelial layers; b.1, body wall with gastrodermis and mucus laden calicodermis, black arrow pointing to necrosis of gastrodermis, and red arrow pointing to mucocytes promote hyperplasia of the mesoglea; c.1, epithelium disrupted and presence of many mucocytes (black arrow), and focal vacuolation of gastrodermis (red arrow); d.1, basal body wall with calicodermis, and necrosis of eternal epithelium (black arrow).