Metabolism of a Glycosaminoglycan during Metamorphosis in the Japanese Conger eel,Conger myriaster-Reference-Cited by-同舟云学术

Metabolism of a Glycosaminoglycan during Metamorphosis in the Japanese Conger eel,Conger myriaster

Published:2009 Issue: Volume:2009 Page:1-5
ISSN:1687-6709
Container-title:Research Letters in Biochemistry
language:en
Short-container-title:Research Letters in Biochemistry

Author:

Kawakami Yutaka¹²,Oku Hiromi³⁴,Nomura Kazuharu⁴,Gorie Shigeaki⁵,Ohta Hiromi²

Affiliation:

1. Nanae Fresh Water Laboratory, Field Science Center of Northern Biosphere, Hokkaido University, Nanae, 041-1105 Hokkaido, Japan

2. Department of Fisheries, Graduate School of Agriculture, Kinki University, Nara, 631-8505 Nara, Japan

3. Nikko Station, National Research Institute of Fisheries Science, Fisheries Research Agency, Nikko, 321-1661 Tochigi, Japan

4. Nansei Station, National Research Institute of Aquaculture, Fisheries Research Agency, Minamiise, 516-0193 Mie, Japan

5. Hyogo Prefectural Fisheries Experimental Station, Akashi, 674-0093 Hyogo, Japan

Abstract

Hyaluronan (HA) is a linear polysaccharide of high molecular weight that exists as a component of the extracellular matrix. The larvae (leptocephali) of the Japanese conger eel (Anguilliformes:Conger myriaster) have high levels of hyaluronan (HA) which is thought to help control body water content. We isolated glycosaminoglycans (GAGs) from Japanese conger eel leptocephali and measured the changes in tissue HA content during metamorphosis. HA content decreased during metamorphosis. In contrast, neutral sugar content increased during metamorphosis. We hypothesize that the leptocephali utilize a metabolic pathway that converts HA to glucose during metamorphosis. Glucose may then be metabolized to glycogen and stored in the juvenile life-history stage.

Funder

Ministry of Education, Culture, Sports, Science, and Technology

Publisher

Hindawi Limited

Link

http://downloads.hindawi.com/journals/bri/2009/251731.pdf

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