グロキディウム幼生殻体の石灰化

概要

論文の詳細を見る
X-ray powder diffraction was used to study the calcification of glochidial shells of some Japanese unionid mussels. The glochidial shell was composed mainly of amorphous component with trace of aragonite in Pseudodon omiensis, but calcification never proceeded during the parasitic period when glochidia grew. On the other hand, the glochidial shell was composed mainly of aragonite with trace of calcite in Inversiunio yanagawensis. Calcite and aragonite were also present in the glochidial shell of Unio douglasiae, but the former was dominant over the latter. Glochidia of P. omiensis contained 6.4% of calcium in the dry weight. Calcium occupied 25.3% and 35.1% of the dry weight of glochidial shells in U. douglasiae and I. yanagawensis, respectively. Calcification tended to progress the more in the larger glochidia.
日本貝類学会の論文
1997-06-30