We used a shell of the mollusk Pinctada margaritifera, which shows very strong iridescence col- ors, to study how this color is pro- duced in the layers of nacre in shells. From observations with a scanning electron microscope (SEM), this particular shell exhibits a very fine-scale diffrac...
Strains were sub-cultivated monthly and deposited in the Culture Collection for Algae and Protozoa (CCAP). Respective accession numbers are given in Table 1. 2.2. Microscopic Observation Light microscopic observations were made with a Nikon Eclipse TS100 inverted microscope (up to 400× magnification...