Universität zu Köln

Ibanez, Alejandro, Klein, Corinna, Quezada, Galo, Krueger, Marcus ORCID: 0000-0003-2008-4582, Brodesser, Susanne and Steinfartz, Sebastian ORCID: 0000-0001-5347-3969 (2018). Characterization of lipid structures in femoral secretions of Galapagos marine iguanas by shotgun lipidomics. Chemoecology, 28 (1). S. 21 - 29. BASEL: SPRINGER BASEL AG. ISSN 1423-0445

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Abstract

The lipidome of femoral gland secretions of the marine iguana (Amblyrhynchus cristatus) was studied. The main aim of this work was to identify and quantify the lipids present in femoral secretions using mass spectrometry-based shotgun lipidomics. Lipids belonging to seven lipid classes were identified: ceramides (43.41%), triacylglycerols (42.15%), cholesteryl esters (4.18%), sphingomyelins (3.61%), phosphatidylcholines (2.67%), phosphatidylinositols (2.50%) and phosphatidylethanolamines (1.48%). The second aim of the study was to explore whether lipid composition matches the different subspecies or populations of marine iguanas. The different subspecies of iguanas did not group together in relation to their lipidome. The authors' findings are discussed in an ecological context and compared with the results of a previous study that characterized volatile lipids in marine iguana secretions using gas chromatography. Given the high diversity of lipid structures in femoral secretions discovered in this study, it is likely that some of these could be involved in intraspecific communication. Certain lipids could have other functions, such as building a barrier to avoid water loss. More data needs to be added to explore this hypothesis. This study is the first to use a lipidomics-based approach to characterize lipid composition in lizard femoral secretions. The application of shotgun lipidomics to reptilian glandular secretions will shed new light on the potential function of lipids in intraspecific chemical communication.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ibanez, Alejandro UNSPECIFIED UNSPECIFIED UNSPECIFIED Klein, Corinna UNSPECIFIED UNSPECIFIED UNSPECIFIED Quezada, Galo UNSPECIFIED UNSPECIFIED UNSPECIFIED Krueger, Marcus UNSPECIFIED orcid.org/0000-0003-2008-4582 UNSPECIFIED Brodesser, Susanne UNSPECIFIED UNSPECIFIED UNSPECIFIED Steinfartz, Sebastian UNSPECIFIED orcid.org/0000-0001-5347-3969 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-197282
DOI:	10.1007/s00049-018-0251-y
Journal or Publication Title:	Chemoecology
Volume:	28
Number:	1
Page Range:	S. 21 - 29
Date:	2018
Publisher:	SPRINGER BASEL AG
Place of Publication:	BASEL
ISSN:	1423-0445
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Institute for Genetics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language GLAND SECRETIONS; AMBLYRHYNCHUS; LIZARDS Multiple languages Biochemistry & Molecular Biology; Ecology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/19728