Phospholipid Metabolism in Bivalves and Their Feed Plankton

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概要

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• In this study, the metabolism of phosphatidylcholine (PC) in bivalves and their feed plankton was investigated in the summer and winter. Lysophosphatidylcholine (lysoPC) and free fatty acid (FFA) appeared to be the major metabolites of PC in both bivalves and feed plankton. Production rates of both lysoPC and FFA relative to protein in plankton were much higher than those in bivalves, oysters, and scallops. Seasonal change in these metabolites in bivalves coincided with that in the plankton. In oysters, the activity of phospholipase A_1 (PLase A_1) was higher than that of PLase A_2 at both pH 4 and 7. The involvement of lysophospholipase in FFA release in oysters seemed to be small. PLase A activity in the digestive glands of oysters was much higher than that in the white portion. The optimum pH and the effects of inorganic ions or chelate agents on the production of these metabolites were different between plankton and oysters, showing that they have their own PLase A characteristics.

• 社団法人日本農芸化学会の論文
• 1995-06-23

著者

• Taguchi Shigeyuki

  Kesennuma Fisheries Experiment Station

• Sajiki J

  Public Health Lab. Chiba Prefecture Chiba Jpn

• Sajiki Junko

  The Public Health Laboratory Of Chiba Prefecture

関連論文

• A Case of Non-toxic Mussels under the Presence of High Concentrations of Toxic Dinoflagellate Dinophysis acuminata that Occurred in Kesennuma Bay, Northern Japan
• Phospholipid Metabolism in Bivalves and Their Feed Plankton
• Effects of Acetic Acid Treatment on the Concentrations of Arachidonic Acid and Prostaglandin E_2 in the Red Algae, Gracilaria asiatica and G.rhodocaudata

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