Pearl Microstructure and Expression of Shell Matrix Protein Genes MSI31 and MSI60 in the Pearl Sac Epithelium of Pinctada fucata by In Situ Hybridization
Figure 2
General images of the pearls examined in the present study.
(A) nacreous pearl; (B) prismatic pearl; (C) pearl without deposition; (D) complex pearl with a flaw and pigmentation; (E) nacreous pearl with unusual tablet formation. The areas shown by broken lines in D and E correspond to the pearl sac epithelium shown in Figs. 4A and 6A, respectively.