アコヤガイの物質代謝に関する研究-I : Carbonic Anhydraseについて
スポンサーリンク
概要
- 論文の詳細を見る
Carbonic anhydrase seems to be one of active agents on the deposition of carbonate in molluscs3). As the first step toward the analysis of the enzymatic system in shell and pearl formation, the distribution of the carbonic anhydrase activity in various tissues of pearl oyster (Pinctada martensii) have been examined manometrically. The order of the enzyme activity in the various tissues is following gill>mantle edge>mantle without mantle edge. gonad>digestive diverticula>adductor muscle (Table I). The enzyme was not found in the mucus which was secreated from mantle tissue. The higheractivity of the mantle edge suggests the possibility that metabolic carbon dioxide may be utilized in the shell formation. The crude enzyme was stable at lower than 25°C. and at pH 4.5-10.0 (Table 2 and 3). The molluscan carbonic anhydrase was inhibited strongly by metal inhibitors, e.g., cyanide, thiocyanide, sulfide, and also`by, sulphanilamide w ?? ich was specific poison of mammalian carbonic anhydrase (Table 4).
- 公益社団法人 日本水産学会の論文