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Lipid composition of the trophosome in the beard worm, Oligobrachia mashikoi (Pogonophora)

Published online by Cambridge University Press:  13 March 2006

Masatoshi Mita
Affiliation:
Department of Biology, Faculty of Education, Tokyo Gakugei University, Koganei-shi, Tokyo 184-8501, Japan
Mariko Deguchi
Affiliation:
Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
Yuichi Sasayama
Affiliation:
Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan

Abstract

A large quantity of triglyceride was detected histochemically in nutrient-deposit cells of the trophosome in the beard worm (Oligobrachia mashikoi). The lipid extracted from the trophosome was composed of triglyceride, several kinds of phospholipid, free fatty acid, cholesterol, and cholesterol ester. The fatty acid of the triglyceride was comprised mainly of a monoenoic type, such as palmitoleic acid (16:1) and oleic acid (18:1), which accounted for 31% and 37% of the total fatty acids, respectively. In addition, in blood triglyceride, the fatty acid composition was almost the same.

Type
Research Article
Copyright
2006 Marine Biological Association of the United Kingdom

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