How to translate text using browser tools
1 November 2010 The Influence of Acclimation Temperature on the Lipid Composition of the Larval Lamprey, Petromyzon marinus, Depends on Tissue and Lipid Class
Yung-Hsi Kao, Mark A. Sheridan, John A. Holmes, John H. Youson
Author Affiliations +
Abstract

This study was designed to examine the effect of thermal acclimation on the lipid composition of fat depot organs the liver and kidneys of larval sea lamprey, Petromyzon marinus. We found that 21°C-acclimated larvae possessed lower total lipid amounts in the liver (39% lower) and kidneys (30% lower) than 13°C-acclimated larvae. Relatively lower lipid contents in the liver and kidneys of 21°C-acclimated lamprey primarily resulted from a reduction in stored lipid reserve, triacylglycerol, but not the structural lipid, phospholipid. Compared to 21°C-acclimated larvae, 13°C-acclimated larvae were found to possess fewer saturated fatty acids (SFAs) and more unsaturated fatty acids (USFAs) in renal triacylglycerol and phospholipid classes, while there were no significant differences in the SFAs and USFAs of hepatic triacylglycerol, phospholipid, cholesteryl ester, fatty acid, and monoacylglycerol classes. Fewer SFAs, found in the kidney triacylglycerol of 13°C-acclimated lamprey, were due to lower 12:0 and 14:0 fatty acids, but those in the renal phospholipid class were characterized by fewer 14:0, 15:0, and 16:0 fatty acids. More USFAs in renal triacylglycerol, as indicated by a higher unsaturation index, primarily resulted from higher polyunsaturated fatty acids (18:2ω;6, 18:3ω;3, and 18:4ω;3); whereas, in the renal phospholipid class, this was a result of higher monoenes (18:1, 20:1, and 22:1ω;9) and ω;3 polyunsaturated fatty acids (18:4ω;3). These data suggest that the influence of thermal acclimation on the lipid composition of lamprey fat depot organs depends on tissue and lipid class.

© 2010 Zoological Society of Japan
Yung-Hsi Kao, Mark A. Sheridan, John A. Holmes, and John H. Youson "The Influence of Acclimation Temperature on the Lipid Composition of the Larval Lamprey, Petromyzon marinus, Depends on Tissue and Lipid Class," Zoological Science 27(11), 835-841, (1 November 2010). https://doi.org/10.2108/zsj.27.835
Received: 11 April 2010; Accepted: 1 May 2010; Published: 1 November 2010
KEYWORDS
fatty acid
kidney
lamprey
liver
temperature
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top