Studies on Shell Regeneration—I. Matrix and Mineral Composition of the Normal and Regenerated Shell of Pomacea paludosa
Comparative Biochemistry and Physiology - A: Comparative Physiology
Pomacea paludosa, Gastropod shell, Shell regeneration, Shell mineralogy, Calcite, Aragonite, Amino acids
1. The normal shell of Pomacea paludosa was all aragonite whereas regenerated shell was found to be calcite and aragonite. The calcite content was high (55–60%) in earlier stages of regeneration but was present only in traces after 15 days.
2. In normal shell, the periostracum had a higher glycine and lower acidic amino acid content as compared with the matrix of the calcified layer.
3. The regenerated shell had no periostracum-type protein, a very low glycine and a high acidic amino acid content. The ratio of acidic to basic amino acid residues decreased progressively with the increase of time of regeneration.
V. R. Meenakshi, Patricia Blackwelder, P. E. Hare, Karl M. Wilbur, and Norimitsu Watabe. 1975. Studies on Shell Regeneration—I. Matrix and Mineral Composition of the Normal and Regenerated Shell of Pomacea paludosa .Comparative Biochemistry and Physiology - A: Comparative Physiology , (2) : 347 -351. https://nsuworks.nova.edu/occ_facarticles/835.