Lipids of the primary intracellular symbiote of the pea aphid, Acyrthosiphon pisum |
| |
Authors: | Edward J. Houk |
| |
Affiliation: | Department of Entomology, University of California, Davis, California 95616, U.S.A. |
| |
Abstract: | The lipid composition of isolated primary symbiotes was investigated. The symbiotes were found to possess phosphatidyl ethanolamine, phosphatidyl choline, cholesterol, and glycerides. The fatty acids esterified to the various glycerides and glyceride derivatives were found to be predominantly C10, C12, C13, and C14 saturated components.The lipids of the pea aphid were also investigated as a measure of the purity of the symbiote preparation. The same classes of compounds were found, but the fatty acid complement was found to be different. The fatty acids were found to be predominantly C14, C18, C18:1, C18:2, and C18:3. A carotenoid-like pigment, whose absorption maximum in benzene was 460 nm, was also present.The possible significance of the various lipids to the systematic classification of the symbiotes is discussed, along with some insight into what may be an apparent dependency factor of the symbiote for the host. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|